Researchers need to examine literature from published articles because they brainly

Sources of information are often categorized as primary or secondary depending upon their originality.
Click here https://vimeo.com/scclibrary/primary-and-secondary-sources/ to view the tutorial.

Primary Sources

A primary source provides direct or firsthand evidence about an event, object, person, or work of art.  Primary sources provide the original materials on which other research is based and enable students and other researchers to get as close as possible to what actually happened during a particular event or time period.   Published materials can be viewed as primary resources if they come from the time period that is being discussed, and were written or produced by someone with firsthand experience of the event.  Often primary sources reflect the individual viewpoint of a participant or observer.  Primary sources can be written or non-written (sound, pictures, artifacts, etc.).  In scientific research, primary sources present original thinking, report on discoveries, or share new information.

Examples of primary sources:

  • Autobiographies and memoirs
  • Diaries, personal letters, and correspondence
  • Interviews, surveys, and fieldwork
  • Internet communications on email, blogs, listservs, and newsgroups
  • Photographs, drawings, and posters
  • Works of art and literature
  • Books, magazine and newspaper articles and ads published at the time
  • Public opinion polls
  • Speeches and oral histories
  • Original documents (birth certificates, property deeds, trial transcripts)
  • Research data, such as census statistics
  • Official and unofficial records of organizations and government agencies
  • Artifacts of all kinds, such as tools, coins, clothing, furniture, etc.
  • Audio recordings, DVDs, and video recordings
  • Government documents (reports, bills, proclamations, hearings, etc.)
  • Patents
  • Technical reports
  • Scientific journal articles reporting experimental research results

Secondary Sources

Secondary sources describe, discuss, interpret, comment upon, analyze, evaluate, summarize, and process primary sources.  A secondary source is generally one or more steps removed from the event or time period and are written or produced after the fact with the benefit of hindsight.  Secondary sources often lack the freshness and immediacy of the original material.  On occasion, secondary sources will collect, organize, and repackage primary source information to increase usability and speed of delivery, such as an online encyclopedia.  Like primary sources, secondary materials can be written or non-written (sound, pictures, movies, etc.).  

Examples of secondary sources:

  • Bibliographies
  • Biographical works
  • Reference books, including dictionaries, encyclopedias, and atlases
  • Articles from magazines, journals, and newspapers after the event
  • Literature reviews and review articles (e.g., movie reviews, book reviews)
  • History books and other popular or scholarly books
  • Works of criticism and interpretation
  • Commentaries and treatises
  • Textbooks
  • Indexes and abstracts

Primary Sources on the web:

https://www.sccollege.edu/Library/Pages/Primary-Sources.aspx

 ​

by David B. Resnik, J.D., Ph.D.

December 23, 2020

Table of Contents Show

  • by David B. Resnik, J.D., Ph.D.
  • Codes and Policies for Research Ethics
  • Ethical Principles
  • Ethical Decision Making in Research
  • Promoting Ethical Conduct in Science
  • Qualitative Research: Now and Then[edit | edit source]
  • Differences Between Qualitative and Quantitative[edit | edit source]

The ideas and opinions expressed in this essay are the author’s own and do not necessarily represent those of the NIH, NIEHS, or US government.

When most people think of ethics (or morals), they think of rules for distinguishing between right and wrong, such as the Golden Rule ("Do unto others as you would have them do unto you"), a code of professional conduct like the Hippocratic Oath ("First of all, do no harm"), a religious creed like the Ten Commandments ("Thou Shalt not kill..."), or a wise aphorisms like the sayings of Confucius. This is the most common way of defining "ethics": norms for conduct that distinguish between acceptable and unacceptable behavior.

Most people learn ethical norms at home, at school, in church, or in other social settings. Although most people acquire their sense of right and wrong during childhood, moral development occurs throughout life and human beings pass through different stages of growth as they mature. Ethical norms are so ubiquitous that one might be tempted to regard them as simple commonsense. On the other hand, if morality were nothing more than commonsense, then why are there so many ethical disputes and issues in our society?

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One plausible explanation of these disagreements is that all people recognize some common ethical norms but interpret, apply, and balance them in different ways in light of their own values and life experiences. For example, two people could agree that murder is wrong but disagree about the morality of abortion because they have different understandings of what it means to be a human being.

Most societies also have legal rules that govern behavior, but ethical norms tend to be broader and more informal than laws. Although most societies use laws to enforce widely accepted moral standards and ethical and legal rules use similar concepts, ethics and law are not the same. An action may be legal but unethical or illegal but ethical. We can also use ethical concepts and principles to criticize, evaluate, propose, or interpret laws. Indeed, in the last century, many social reformers have urged citizens to disobey laws they regarded as immoral or unjust laws. Peaceful civil disobedience is an ethical way of protesting laws or expressing political viewpoints.

Another way of defining 'ethics' focuses on the disciplines that study standards of conduct, such as philosophy, theology, law, psychology, or sociology. For example, a "medical ethicist" is someone who studies ethical standards in medicine. One may also define ethics as a method, procedure, or perspective for deciding how to act and for analyzing complex problems and issues. For instance, in considering a complex issue like global warming, one may take an economic, ecological, political, or ethical perspective on the problem. While an economist might examine the cost and benefits of various policies related to global warming, an environmental ethicist could examine the ethical values and principles at stake.

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Many different disciplines, institutions, and professions have standards for behavior that suit their particular aims and goals. These standards also help members of the discipline to coordinate their actions or activities and to establish the public's trust of the discipline. For instance, ethical standards govern conduct in medicine, law, engineering, and business. Ethical norms also serve the aims or goals of research and apply to people who conduct scientific research or other scholarly or creative activities. There is even a specialized discipline, research ethics, which studies these norms. See Glossary of Commonly Used Terms in Research Ethics.

There are several reasons why it is important to adhere to ethical norms in research. First, norms promote the aims of research, such as knowledge, truth, and avoidance of error. For example, prohibitions against fabricating, falsifying, or misrepresenting research data promote the truth and minimize error.

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Second, since research often involves a great deal of cooperation and coordination among many different people in different disciplines and institutions, ethical standards promote the values that are essential to collaborative work, such as trust, accountability, mutual respect, and fairness. For example, many ethical norms in research, such as guidelines for authorship, copyright and patenting policies, data sharing policies, and confidentiality rules in peer review, are designed to protect intellectual property interests while encouraging collaboration. Most researchers want to receive credit for their contributions and do not want to have their ideas stolen or disclosed prematurely.

Third, many of the ethical norms help to ensure that researchers can be held accountable to the public. For instance, federal policies on research misconduct, conflicts of interest, the human subjects protections, and animal care and use are necessary in order to make sure that researchers who are funded by public money can be held accountable to the public.

Fourth, ethical norms in research also help to build public support for research. People are more likely to fund a research project if they can trust the quality and integrity of research.

Finally, many of the norms of research promote a variety of other important moral and social values, such as social responsibility, human rights, animal welfare, compliance with the law, and public health and safety. Ethical lapses in research can significantly harm human and animal subjects, students, and the public. For example, a researcher who fabricates data in a clinical trial may harm or even kill patients, and a researcher who fails to abide by regulations and guidelines relating to radiation or biological safety may jeopardize his health and safety or the health and safety of staff and students.

Codes and Policies for Research Ethics

Given the importance of ethics for the conduct of research, it should come as no surprise that many different professional associations, government agencies, and universities have adopted specific codes, rules, and policies relating to research ethics. Many government agencies have ethics rules for funded researchers.

  • National Institutes of Health (NIH)
  • National Science Foundation (NSF)
  • Food and Drug Administration (FDA)
  • Environmental Protection Agency (EPA)
  • US Department of Agriculture (USDA)
  • Singapore Statement on Research Integrity
  • American Chemical Society, The Chemist Professional’s Code of Conduct
  • Code of Ethics (American Society for Clinical Laboratory Science)
  • American Psychological Association, Ethical Principles of Psychologists and Code of Conduct
  • Statement on Professional Ethics (American Association of University Professors)
  • Nuremberg Code
  • World Medical Association's Declaration of Helsinki

Ethical Principles

The following is a rough and general summary of some ethical principles that various codes address*:

Honesty

Strive for honesty in all scientific communications. Honestly report data, results, methods and procedures, and publication status. Do not fabricate, falsify, or misrepresent data. Do not deceive colleagues, research sponsors, or the public.

Objectivity

Strive to avoid bias in experimental design, data analysis, data interpretation, peer review, personnel decisions, grant writing, expert testimony, and other aspects of research where objectivity is expected or required. Avoid or minimize bias or self-deception. Disclose personal or financial interests that may affect research.

Integrity

Keep your promises and agreements; act with sincerity; strive for consistency of thought and action.

Carefulness

Avoid careless errors and negligence; carefully and critically examine your own work and the work of your peers. Keep good records of research activities, such as data collection, research design, and correspondence with agencies or journals.

Openness

Share data, results, ideas, tools, resources. Be open to criticism and new ideas.

Transparency

Disclose methods, materials, assumptions, analyses, and other information needed to evaluate your research.

Accountability

Take responsibility for your part in research and be prepared to give an account (i.e. an explanation or justification) of what you did on a research project and why.

Intellectual Property

Honor patents, copyrights, and other forms of intellectual property. Do not use unpublished data, methods, or results without permission. Give proper acknowledgement or credit for all contributions to research. Never plagiarize.

Confidentiality

Protect confidential communications, such as papers or grants submitted for publication, personnel records, trade or military secrets, and patient records.

Responsible Publication

Publish in order to advance research and scholarship, not to advance just your own career. Avoid wasteful and duplicative publication.

Responsible Mentoring

Help to educate, mentor, and advise students. Promote their welfare and allow them to make their own decisions.

Respect for Colleagues

Respect your colleagues and treat them fairly.

Social Responsibility

Strive to promote social good and prevent or mitigate social harms through research, public education, and advocacy.

Non-Discrimination

Avoid discrimination against colleagues or students on the basis of sex, race, ethnicity, or other factors not related to scientific competence and integrity.

Competence

Maintain and improve your own professional competence and expertise through lifelong education and learning; take steps to promote competence in science as a whole.

Legality

Know and obey relevant laws and institutional and governmental policies.

Animal Care

Show proper respect and care for animals when using them in research. Do not conduct unnecessary or poorly designed animal experiments.

Human Subjects protection

When conducting research on human subjects, minimize harms and risks and maximize benefits; respect human dignity, privacy, and autonomy; take special precautions with vulnerable populations; and strive to distribute the benefits and burdens of research fairly.

* Adapted from Shamoo A and Resnik D. 2015. Responsible Conduct of Research, 3rd ed. (New York: Oxford University Press).

Ethical Decision Making in Research

Although codes, policies, and principles are very important and useful, like any set of rules, they do not cover every situation, they often conflict, and they require considerable interpretation. It is therefore important for researchers to learn how to interpret, assess, and apply various research rules and how to make decisions and to act ethically in various situations. The vast majority of decisions involve the straightforward application of ethical rules. For example, consider the following case,

Case01

The research protocol for a study of a drug on hypertension requires the administration of the drug at different doses to 50 laboratory mice, with chemical and behavioral tests to determine toxic effects. Tom has almost finished the experiment for Dr. Q. He has only 5 mice left to test. However, he really wants to finish his work in time to go to Florida on spring break with his friends, who are leaving tonight. He has injected the drug in all 50 mice but has not completed all of the tests. He therefore decides to extrapolate from the 45 completed results to produce the 5 additional results.

Many different research ethics policies would hold that Tom has acted unethically by fabricating data. If this study were sponsored by a federal agency, such as the NIH, his actions would constitute a form of research misconduct, which the government defines as "fabrication, falsification, or plagiarism" (or FFP). Actions that nearly all researchers classify as unethical are viewed as misconduct. It is important to remember, however, that misconduct occurs only when researchers intend to deceive: honest errors related to sloppiness, poor record keeping, miscalculations, bias, self-deception, and even negligence do not constitute misconduct. Also, reasonable disagreements about research methods, procedures, and interpretations do not constitute research misconduct. Consider the following case:

Case02

Dr. T has just discovered a mathematical error in his paper that has been accepted for publication in a journal. The error does not affect the overall results of his research, but it is potentially misleading. The journal has just gone to press, so it is too late to catch the error before it appears in print. In order to avoid embarrassment, Dr. T decides to ignore the error.

Dr. T's error is not misconduct nor is his decision to take no action to correct the error. Most researchers, as well as many different policies and codes would say that Dr. T should tell the journal (and any coauthors) about the error and consider publishing a correction or errata. Failing to publish a correction would be unethical because it would violate norms relating to honesty and objectivity in research.

There are many other activities that the government does not define as "misconduct" but which are still regarded by most researchers as unethical. These are sometimes referred to as "other deviations" from acceptable research practices and include:

  • Publishing the same paper in two different journals without telling the editors
  • Submitting the same paper to different journals without telling the editors
  • Not informing a collaborator of your intent to file a patent in order to make sure that you are the sole inventor
  • Including a colleague as an author on a paper in return for a favor even though the colleague did not make a serious contribution to the paper
  • Discussing with your colleagues confidential data from a paper that you are reviewing for a journal
  • Using data, ideas, or methods you learn about while reviewing a grant or a papers without permission
  • Trimming outliers from a data set without discussing your reasons in paper
  • Using an inappropriate statistical technique in order to enhance the significance of your research
  • Bypassing the peer review process and announcing your results through a press conference without giving peers adequate information to review your work
  • Conducting a review of the literature that fails to acknowledge the contributions of other people in the field or relevant prior work
  • Stretching the truth on a grant application in order to convince reviewers that your project will make a significant contribution to the field
  • Stretching the truth on a job application or curriculum vita
  • Giving the same research project to two graduate students in order to see who can do it the fastest
  • Overworking, neglecting, or exploiting graduate or post-doctoral students
  • Failing to keep good research records
  • Failing to maintain research data for a reasonable period of time
  • Making derogatory comments and personal attacks in your review of author's submission
  • Promising a student a better grade for sexual favors
  • Using a racist epithet in the laboratory
  • Making significant deviations from the research protocol approved by your institution's Animal Care and Use Committee or Institutional Review Board for Human Subjects Research without telling the committee or the board
  • Not reporting an adverse event in a human research experiment
  • Wasting animals in research
  • Exposing students and staff to biological risks in violation of your institution's biosafety rules
  • Sabotaging someone's work
  • Stealing supplies, books, or data
  • Rigging an experiment so you know how it will turn out
  • Making unauthorized copies of data, papers, or computer programs
  • Owning over $10,000 in stock in a company that sponsors your research and not disclosing this financial interest
  • Deliberately overestimating the clinical significance of a new drug in order to obtain economic benefits

These actions would be regarded as unethical by most scientists and some might even be illegal in some cases. Most of these would also violate different professional ethics codes or institutional policies. However, they do not fall into the narrow category of actions that the government classifies as research misconduct. Indeed, there has been considerable debate about the definition of "research misconduct" and many researchers and policy makers are not satisfied with the government's narrow definition that focuses on FFP. However, given the huge list of potential offenses that might fall into the category "other serious deviations," and the practical problems with defining and policing these other deviations, it is understandable why government officials have chosen to limit their focus.

Finally, situations frequently arise in research in which different people disagree about the proper course of action and there is no broad consensus about what should be done. In these situations, there may be good arguments on both sides of the issue and different ethical principles may conflict. These situations create difficult decisions for research known as ethical or moral dilemmas. Consider the following case:

Case03

Dr. Wexford is the principal investigator of a large, epidemiological study on the health of 10,000 agricultural workers. She has an impressive dataset that includes information on demographics, environmental exposures, diet, genetics, and various disease outcomes such as cancer, Parkinson’s disease (PD), and ALS. She has just published a paper on the relationship between pesticide exposure and PD in a prestigious journal. She is planning to publish many other papers from her dataset. She receives a request from another research team that wants access to her complete dataset. They are interested in examining the relationship between pesticide exposures and skin cancer. Dr. Wexford was planning to conduct a study on this topic.

Dr. Wexford faces a difficult choice. On the one hand, the ethical norm of openness obliges her to share data with the other research team. Her funding agency may also have rules that obligate her to share data. On the other hand, if she shares data with the other team, they may publish results that she was planning to publish, thus depriving her (and her team) of recognition and priority. It seems that there are good arguments on both sides of this issue and Dr. Wexford needs to take some time to think about what she should do. One possible option is to share data, provided that the investigators sign a data use agreement. The agreement could define allowable uses of the data, publication plans, authorship, etc. Another option would be to offer to collaborate with the researchers.

The following are some step that researchers, such as Dr. Wexford, can take to deal with ethical dilemmas in research:

What is the problem or issue?

It is always important to get a clear statement of the problem. In this case, the issue is whether to share information with the other research team.

What is the relevant information?

Many bad decisions are made as a result of poor information. To know what to do, Dr. Wexford needs to have more information concerning such matters as university or funding agency or journal policies that may apply to this situation, the team's intellectual property interests, the possibility of negotiating some kind of agreement with the other team, whether the other team also has some information it is willing to share, the impact of the potential publications, etc.

What are the different options?

People may fail to see different options due to a limited imagination, bias, ignorance, or fear. In this case, there may be other choices besides 'share' or 'don't share,' such as 'negotiate an agreement' or 'offer to collaborate with the researchers.'

How do ethical codes or policies as well as legal rules apply to these different options?

The university or funding agency may have policies on data management that apply to this case. Broader ethical rules, such as openness and respect for credit and intellectual property, may also apply to this case. Laws relating to intellectual property may be relevant.

Are there any people who can offer ethical advice?

It may be useful to seek advice from a colleague, a senior researcher, your department chair, an ethics or compliance officer, or anyone else you can trust. In the case, Dr. Wexford might want to talk to her supervisor and research team before making a decision.

After considering these questions, a person facing an ethical dilemma may decide to ask more questions, gather more information, explore different options, or consider other ethical rules. However, at some point he or she will have to make a decision and then take action. Ideally, a person who makes a decision in an ethical dilemma should be able to justify his or her decision to himself or herself, as well as colleagues, administrators, and other people who might be affected by the decision. He or she should be able to articulate reasons for his or her conduct and should consider the following questions in order to explain how he or she arrived at his or her decision: .

  • Which choice will probably have the best overall consequences for science and society?
  • Which choice could stand up to further publicity and scrutiny?
  • Which choice could you not live with?
  • Think of the wisest person you know. What would he or she do in this situation?
  • Which choice would be the most just, fair, or responsible?

After considering all of these questions, one still might find it difficult to decide what to do. If this is the case, then it may be appropriate to consider others ways of making the decision, such as going with a gut feeling or intuition, seeking guidance through prayer or meditation, or even flipping a coin. Endorsing these methods in this context need not imply that ethical decisions are irrational, however. The main point is that human reasoning plays a pivotal role in ethical decision-making but there are limits to its ability to solve all ethical dilemmas in a finite amount of time.

Promoting Ethical Conduct in Science

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Most academic institutions in the US require undergraduate, graduate, or postgraduate students to have some education in the responsible conduct of research (RCR). The NIH and NSF have both mandated training in research ethics for students and trainees. Many academic institutions outside of the US have also developed educational curricula in research ethics

Those of you who are taking or have taken courses in research ethics may be wondering why you are required to have education in research ethics. You may believe that you are highly ethical and know the difference between right and wrong. You would never fabricate or falsify data or plagiarize. Indeed, you also may believe that most of your colleagues are highly ethical and that there is no ethics problem in research..

If you feel this way, relax. No one is accusing you of acting unethically. Indeed, the evidence produced so far shows that misconduct is a very rare occurrence in research, although there is considerable variation among various estimates. The rate of misconduct has been estimated to be as low as 0.01% of researchers per year (based on confirmed cases of misconduct in federally funded research) to as high as 1% of researchers per year (based on self-reports of misconduct on anonymous surveys). See Shamoo and Resnik (2015), cited above.

Clearly, it would be useful to have more data on this topic, but so far there is no evidence that science has become ethically corrupt, despite some highly publicized scandals. Even if misconduct is only a rare occurrence, it can still have a tremendous impact on science and society because it can compromise the integrity of research, erode the public’s trust in science, and waste time and resources. Will education in research ethics help reduce the rate of misconduct in science? It is too early to tell. The answer to this question depends, in part, on how one understands the causes of misconduct. There are two main theories about why researchers commit misconduct. According to the "bad apple" theory, most scientists are highly ethical. Only researchers who are morally corrupt, economically desperate, or psychologically disturbed commit misconduct. Moreover, only a fool would commit misconduct because science's peer review system and self-correcting mechanisms will eventually catch those who try to cheat the system. In any case, a course in research ethics will have little impact on "bad apples," one might argue.

According to the "stressful" or "imperfect" environment theory, misconduct occurs because various institutional pressures, incentives, and constraints encourage people to commit misconduct, such as pressures to publish or obtain grants or contracts, career ambitions, the pursuit of profit or fame, poor supervision of students and trainees, and poor oversight of researchers (see Shamoo and Resnik 2015). Moreover, defenders of the stressful environment theory point out that science's peer review system is far from perfect and that it is relatively easy to cheat the system. Erroneous or fraudulent research often enters the public record without being detected for years. Misconduct probably results from environmental and individual causes, i.e. when people who are morally weak, ignorant, or insensitive are placed in stressful or imperfect environments. In any case, a course in research ethics can be useful in helping to prevent deviations from norms even if it does not prevent misconduct. Education in research ethics is can help people get a better understanding of ethical standards, policies, and issues and improve ethical judgment and decision making. Many of the deviations that occur in research may occur because researchers simply do not know or have never thought seriously about some of the ethical norms of research. For example, some unethical authorship practices probably reflect traditions and practices that have not been questioned seriously until recently. If the director of a lab is named as an author on every paper that comes from his lab, even if he does not make a significant contribution, what could be wrong with that? That's just the way it's done, one might argue. Another example where there may be some ignorance or mistaken traditions is conflicts of interest in research. A researcher may think that a "normal" or "traditional" financial relationship, such as accepting stock or a consulting fee from a drug company that sponsors her research, raises no serious ethical issues. Or perhaps a university administrator sees no ethical problem in taking a large gift with strings attached from a pharmaceutical company. Maybe a physician thinks that it is perfectly appropriate to receive a $300 finder’s fee for referring patients into a clinical trial.

If "deviations" from ethical conduct occur in research as a result of ignorance or a failure to reflect critically on problematic traditions, then a course in research ethics may help reduce the rate of serious deviations by improving the researcher's understanding of ethics and by sensitizing him or her to the issues.

Finally, education in research ethics should be able to help researchers grapple with the ethical dilemmas they are likely to encounter by introducing them to important concepts, tools, principles, and methods that can be useful in resolving these dilemmas. Scientists must deal with a number of different controversial topics, such as human embryonic stem cell research, cloning, genetic engineering, and research involving animal or human subjects, which require ethical reflection and deliberation.

David B. Resnik, J.D., Ph.D.
Bioethicist
Tel 984-287-4208
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Qualitative Research: Now and Then[edit | edit source]

The word qualitative stems back to around the 15th century from the Latin word ''qualitas'' which means quality, an attribute, or a property. So it would make sense that qualitative research looks at the properties, the qualities or attributes of something as opposed to quantities of something[7].

The first Now qualitative researcher remains unknown, however, looking back to the 19th and 20th centuries the cultural anthropologists influenced the research field by their observational studies of non-literate societies. Sigmund Freud's and Piaget, well known key figures in the field of psychology, relied on case studies on interviewing in their work and observation techniques.

Qualitative research prospered at the end of the 20th century, A nice study by Rene et al. in 2002[9] looked at the incidence of how many times qualitative research terms were used in research papers in the field of psychology within the 20th century. They found the term qualitative research almost didn't exist until the 1980s, This has changed dramatically in the 1990s when there was a huge sharp rise in its popularity and use.

The increased popularity could be credited to a number of reasons:

  • The Grounded theory, an influential approach in qualitative research, was introduced in the 1960s followed by newly published academic journals with a focus on qualitative research over the following two decades, This has created a platform for publishing and access to readers who can spread the word and contribute to the discussion and the debate about the findings[7].
  • As with quantitative research and statistical analysis software, there are some computer software programs that started to be developed for qualitative researchers to help manage their data. And more recently, programs developed to help with data interpretation and analysis.
  • It was debatable at one point that qualitative research might not be as compatible as the quantitative methods. the findings and contributions of qualitative research have now gained huge momentum which shifted the way of thinking and convinced researchers that both methods can complement one another, adding strength and value to the studied field[7].

Differences Between Qualitative and Quantitative[edit | edit source]

Although the two methods are often seen as antagonists, there is a growing recognition that the distinctions between the methods are unnecessary. They cannot be compared side by side but for the purposes of trying to understand some key characteristics of each of the types of research, we will look at qualitative and quantitative methods and how they might complement one another.

In terms of objectives, qualitative research is inductive and aims to explore new things, insights, generate theories, patterns, themes, and hypotheses. On the other hand, quantitative research is deductive so it investigates the validity of facts, estimates relationships, and predicts outcomes, It controls, describes, or confirms hypotheses. There's a lot more breadth to quantitative methods, whereas there's a lot more depth to qualitative[7].

Qualitative research is subjective, flexible, and naturalistic. Quantitative on the other hand is experimental and uses statistics.


In terms of design, qualitative research in its design can be flexible, adaptable, can evolve over time. and can also be emergent. Whereas quantitative research is a lot more structured, fixed and predetermined[7].

The sample size is another area where the two research methods differ. The sample tends to be smaller in qualitative research and the data saturation can be reached quicker. But in quantitative research, larger samples are needed to generalize the results and ensure the reliability of the intervention,

The researcher can be considered an actual instrument in qualitative research and their own biases and opinion can influence the data collection because they determine the questions, often open-ended or semi-structured, to guide interviews and set the tools to be utilized then observe the whole process and recognize the patterns. Whereas in quantitative research, outcome measures should be standardized for the statistical analysis so we use structured objective tools like questionnaires and lab tests[7].

The analysis utilized in qualitative research is iterative, A report or transcript can be read many times, a video can be watched several times to draw conclusions and highlight key terms. In quantitative research, the analysis depends on modeling and statistical testing.

Finally, data reporting in qualitative research is done by the language of the researchers and their interpretation which means that if the same study was repeated we might get different results. It can often be helpful to get an independent researcher to look into the findings and conclusions of the study to see if they would agree or provide different insights and this can eliminate subjectivity and ensures flexibility of the study. Quantitative research is more objective and can be generalized because the data is reported through statistical analysis, so it's numerical data and can be organized in tables or graphs or charts[7].

The table below summarizes the differences between qualitative and quantitative methods:

Comparison of Quantitative and Qualitative Methods[10]
QuantitativeQualitative
Philosophical Foundation Deductive, reductionalist Inductive, holistic
Aim To test pre-set hypothesis To explore complex human issues
Study Plan Step-wise, predetermined Iterative, flexible
Position of researcher Aims to be detached and objective Integral part of the research process
Assessing quality of outcomes Direct tests of validity, reliability using statistics Indirect quality assurance methods of trustworthiness
Sample size Tends to be larger Tends to be smaller
Study setting Can be controlled Tends to be natural
Data Reporting • Reported via statistical analysis

• Numerical data•

Reported via the language of the researcher.

• Textual data/non-numerical

[11]

When deciding between qualitative and quantitative research there are some factors to be considered to determine the best method. Each method has its own place. So, instead of questioning what is the best research method, the question should be what research methods might best fit the research question/s?

Generally, qualitative research is suitable when we try to understand phenomena or a phenomenon, looking at experiences, perspectives, opinions, or meaning. While quantitative research might look at prevalences, risk factors, effectiveness, correlations, causation, etc. For example, if a researcher is looking to explore the experiences of footballers in recovery post ACL injury, qualitative data or qualitative research might be the answer. If the investigation is on the incidence of ACL injuries in footballers in the UK, for example, quantitative methods are suitable for this type of research[7].

Despite the differences between the two research methods, they can also complement each other and they can be used together as mixed methods of research since both methods have a set of strengths and limitations. For example, a study by Algeo & Aitken in 2019[12] investigated the role of occupational therapists in critical care. The study used a survey to obtain numerical data such as the numbers of occupational therapists in each ward, hours of work, type of interventions, type of assessments they use, and the amount of non-clinical work they do, etc. This was followed by in-depth interviews with a subset of the therapists who participated in the surveys to get a better understanding of the challenges and the facilitators for the Occupational therapists' role in critical care. So, mixed methods can be a useful technique in research[7].

Qualitative research can appear to be a complex topic which may push many prospective researchers towards the comforts of a quantitative approach, however, the outcomes of performing qualitative research can have equally important ramifications.After all patients are more than a disease or just 'another number' on a waiting list, they are people and are the reason many people are in the healthcare profession; their experience is vitally important.Ultimately qualitative research attempts to bridge between scientific findings and clinical practice with patient interaction. The table below gives a brief overview of the central identity and themes of qualitative research and data collection methods:

Research Approaches and Implications for Data Collection[13]n
Types of ApproachDefining FeaturesData Collection Implications
Phenomenology
  • Focuses on individual experiences, beliefs and perceptions
  • Test used as a proxy for human experience
  • Questions and observations are aimed at drawing out individual experiences and perceptions
  • In focus groups, group experiences and normative perceptions are typically sought out
  • In-depth interviews and focus groups are ideal methods for collecting phenomenological data.
Ethnography
  • Oriented toward studying shared meanings and practices
  • Emphasizes the emic perspective
  • Can have a historical or contemporary focus
  • Questions and observations are generally related to social and cultural processes and shared meanings within a given group
  • Traditionally associated with long-term fieldwork
  • Participation observation is well suited to ethnographic inquiry
Inductive Thematic Analysis
  • Draws on inductive analytic methods
  • Involves identifying and coding emergent themes within data
  • Most common analytic approach used in qualitative inquiry
  • ITA requires free-flowing data
  • In-depth interviews and focus groups are the most common data collection techniques associated with ITA
  • Notes from participant observation activities can be analysed using ITA but interview/group data is better
Grounded Theory
  • Inductive data collection and analytic methods
  • Uses systematic and exhaustive comparison of text-segments to build thematic structure and theory from a body of text
  • Common analytic approach in qualitative studies
  • In-depth interviews and focus groups are the most common data collection techniques
  • Sample sizes for grounded theory are more limited than for ITA because analytic process is more intensive and time-consuming
  • ITA and grounded theory are not the same
Case Study
  • Analysis of one to several cases that are unique with respect to the research topic
  • Analysis primarily focused on exploring a unique quality
  • Case studies are selected based on a unique and sometimes rare quality
  • Questions and observations should focus on the unique feature
Discourse/Conversation Analysis
  • Study of naturally occurring discourse - can range from conversation, public events, documents.
  • These linguistically focused methods often use existing documentation
  • Conversations between individuals that spontaneously emerge within-group interviews or focus groups may be studies
  • Participant observation is conductive to discourse analysis if narratives from public events can be recorded
Narrative Analysis
  • Narratives used as data source
  • Can be from several sources i.e interviews, literature, letters
  • If generating narratives, then questions need to be aimed at eliciting stories and the importance those stories hold for participants as well as the larger culture
Mixed Methods
  • Defined as integrating qualitative and quantitative research methods in a single study
  • Two most common methods are concurrent and sequential
  • Collection of qualitative data in a mixed-methods study can be informed from a wide range of theoretical perspectives and analytic approaches
  • Researches must specify upfront and in details how, when and why qualitative and quantitative data will be integrated.

Why do researchers need to examine literature from published articles?

It can help you turn a research idea into an interesting research question. It can tell you if a research question has already been answered. It can help you evaluate the interestingness of a research question. It can give you ideas for how to conduct your own study.

Why is it important for a researcher to review the literature *?

The purpose of a literature review is to gain an understanding of the existing research and debates relevant to a particular topic or area of study, and to present that knowledge in the form of a written report. Conducting a literature review helps you build your knowledge in your field.

What is the reason why researcher has to examine literature as a technique in narrowing down the research topic?

The review of related literature allows us to identify the questions that are still needed to be answered regarding a research topic.

What are the things you need to consider when dealing with literature?

Has the author formulated a problem/issue? Is the problem/issue clearly defined and is its significance (scope, severity, and relevance) clearly established? Could the problem/issue have been approached more effectively and or from another perspective?