MCAT Content / AAMC MCAT Practice Exam 2 Ps Solutions Show
AAMC FL2 PS [Web]Exam 2 P/S Solutions: Passage 1 1) This question involves knowing the four structures of the eye listed in the answer choices. We’ll have to judge which would be the most important when comparing the color perception of humans and baboons.
2) First part of our passage explained how humans abruptly switched from blue to green responses at a certain wavelength in the experiment. We perceive these colors categorically as either green or blue, while baboons do not. The plot for baboons will be different; we should see a continuum and a steady increase from green to blue.
3) To answer this question, we’ll look through the four answer choices presented and go through the functions of each. We want the answer choice that’s related to viewing color, or vision in general.
4) We can get this information from the passage. I have highlighted what I feel is going to be necessary information from the passage. We have a positive banana chip when a correct response was produced. We have an aversive (strongly disliked) procedure when there are incorrect responses.
Exam 2 P/S Solutions: Passage 2 5) First thing we can do here is bring up where the author talks about assimilation patterns in the passage. We want to find variation in a set of answer choices and make sure we relate to this final paragraph in the passage. This is ultimately going to come down to knowing your vocabulary for the behavioral section.
6) The MCAT loves well-rounded students, and this question is an example of exactly that! We’re going to consider some historical factors for why there has been an increase in population of people aged 65 and older, and why there is a projected increase as well.
7) First thing we’re going to do to answer this question is define conflict theory. Conflict theory is a way of studying society by focusing on inequality between different groups and sees social life as a competition and focuses on the distribution of resources and power between these groups. Conflict theory views change as abrupt and revolutionary; that change and revolution is the result of inequality. In the conflict perspective, change comes about through conflict between competing interests, not consensus or adaptation. The passage did talk about demographic change affecting the US healthcare delivery system, but we want to explain this from the perspective of a conflict theorist.
8) This is going to be a content question that’s tangentially related to the passage. We can define the four terms given as answer choices and pick the one that is most likely to increase as the US population ages.
Exam 2 P/S Solutions: Questions 9-12 9) The theory of linguistic relativity states that the structure of a language influences the way its speakers conceptualize the world. The canonical example of studying linguistic relativity is in the area of color naming. Sapir and Whorf would believe that people whose languages partition the color spectrum along different lines perceive colors in a different way.
10) First thing we’re going to do here is define a source-monitoring error. A source-monitoring error is a memory error in which the source of a memory is incorrectly attributed to some specific recollected experience. For example, the fictitious names are going to be fresh in the participants’ minds, so they might incorrectly believe they remember the name because it is a famous person they’ve heard of. There’s no real confidence in how the name was learned: either through hearing about a real famous person, or from seeing the fictitious name the previous day. While they might recall some of the old fictitious names as famous, that likely doesn’t mean they will forget the celebrity names as famous. Answer choice A reflects these observations. The individual will still recognize the celebrity names as famous people. They will incorrectly recognize some of the old fictitious names from the previous day as famous people because they do not recall how the name was learned. And lastly, there will be very few new fictitious names that the participants will recognize as a famous person. Answer choice A is our best answer. 11) This patient is only forgetting the events surrounding the marriage and spouse, but everything else is intact. There’s no continuity between memories, and there’s a disconnect between reality and their memory.
12) This question is asking us to identify a type of conditioning or learning that is associated with increased reward-seeking motivation.
Exam 2 P/S Solutions: Passage 3 13) This question is going to involve going back to the passage to find key information about social mobility, then we’ll jump into the four key terms in our answer choices. The author mentions scholars are questioning assumptions about opportunity in American society.
14) We can go back to the passage to see what the author mentions about poverty, then we can relate that information to the four types of poverty in our answer choices. In the passage, the author makes mentions to income compared to the median income. That’s a classic example of relative poverty, however, let’s go through our answer choices to confirm.
15) To answer this question, we’ll have to consider what the author mentions about immigrant groups and assimilation. The third paragraph in the passage talks about social interaction factors. We are told that strong social support in local immigrant communities can explain superior health of individuals from immigrant groups in the United States. That’s comparted to US-born individuals. That means individuals that are less assimilated have strong social support and superior health. Individuals that are more assimilated have worse health and lower levels of support. Answer choice C is going to be our best answer according to the passage. 16) Socioeconomic gradient in health refers to how wealthy people are found to live longer on average than middle-class people, and middle-class people live longer than poor people. The wealthiest have the best healthcare. However, the author mentions the U.S. health disadvantage is not confined to racial or ethnic minority groups, or to groups with low income or educational attainment. It exists for all social classes and for the non-Hispanic white majority group.
Exam 2 P/S Solutions: Passage 4 17) While this question is a passage-based question, we can most likely answer this question by knowing the definition of the fundamental attribution error. The fundamental attribution error describes the tendency to over-value internal (personality-based) explanations and under-value external (situational) explanations for another person’s behavior.
18) In regards to the response times during the IAT, the author mentions a shorter response time for a particular combination of image and attribute indicates a stronger link in the participant’s mind. We’re simply finding a vocabulary word that is consistent with this observation. Let’s go through the four choices.
19) The author dedicates an entire paragraph talking about the study’s online questionnaire. We can revisit that paragraph in the passage. We ultimately want to determine which component of attitudes is assessed by this questionnaire. There are three main components of attitudes, however, we can define each of the 4 options listed as answer choices and find the best answer.
20) This question is asking about specific information from paragraph 2, so we can pull it up here. The author mentions that for attitudes on sensitive topics, internet responses may have advantages over face-to-face interviews and telephone surveys. Why is that? The internet gives the participants a sense of anonymity and allows them to be more open without feeling like they are being judged. A telephone or face-to-face survey might be too personal.
21) This question involves going back to the results of the study. We can pull up the paragraph from the passage that discusses these results: We see strong anti-obesity bias in MDs with a lower BMI. MDs with a higher BMI have a moderate anti-obesity bias. We want to find an aspect of social interaction that explains these findings.
22) To answer this question, we can reference the researchers’ suggestion for future study. The researchers suggested that more studies are needed to explore how implicit attitudes about weight might affect healthcare quality. The whole passage revolved around this to an extent, so this was a natural project to suggest by the researchers.
Exam 2 P/S Solutions: Passage 5 23) To answer this question, we can go back to the passage and note the provider attitudes. We’re told “SUD treatment disparities could also be related to patient–provider interactions. In a study of healthcare provider attitudes, researchers concluded that providers often overlooked the consequences of discrimination and poverty in explaining their patients’ behaviors.” Providers fail to consider a type of explanation of behavior. We can go through the four types listed here and see which one is not considered.
24) First thing we want to do to answer this question is to reference the passage and what the author says about dependence and substance use disorders. The author mentions in the 2nd paragraph, “Although psychoactive drugs vary in terms of their risk of dependence, one of the factors associated with substance use disorders (SUD) in adolescents is the strong desire to ingest a drug (or other substance).” We want to define and pick one of the four answer choices that is consistent with this statement.
25) This question is a content question that is tangentially related to the passage. While the passage did focus on drugs and dependence, we can answer this question using our general knowledge.
26) First thing we’re going to do to answer this question is define conflict theory. Conflict theory is a way of studying society by focusing on inequality between different groups. A conflict theorist sees social life as a competition and focuses on the distribution of resources and power between these groups. Conflict theory views change as abrupt and revolutionary; that change and revolution is the result of inequality. In the conflict perspective, change comes about through conflict between competing interests, not consensus or adaptation. Let’s jump into our four answer choices and see which is the most relevant to explaining the causes of access disparities for SUD treatment.
Exam 2 P/S Solutions: Questions 27-30 27) Psychoactive drugs can act as agonists for a given neurotransmitter system. These agonists are chemicals that mimic a neurotransmitter, like dopamine, at the receptor site and strengthen its effects. A dopamine agonist is dose-dependent, meaning the effects change when the dose of the drug changes. If a higher dose of the drug is used, we expect it will greatly strengthen dopamine’s effects. Dopamine is a neurotransmitter that is involved in mood, sleep, and learning. Influencing dopamine can mean increased pleasure and euphoria, or suppressed appetite.
28) Discrimination is the differential treatment of an individual or group based on prejudicial thoughts. Essentially, thoughts turn into actions. Discrimination can involve the prejudicial treatment of an individual based on his or her membership, or perceived membership, in a certain group or category. In this case, the physician might assume the patient is well-educated, but we have no evidence there is any difference in treatment. At first glance, this does not sound like discrimination. Alternatively, prejudice is a positive or negative evaluation of another person based on their perceived group membership (e.g., race, class, or gender). This situation sounds more like prejudice.
29) Biggest thing we want to be careful about is we need to pick a statement that does NOT identify a limitation of the research design. Be careful with the verbiage. Let’s look at the four answer choices in the context of this question.
30) At first glance, I’m thinking of two different schools of thought here. We’ll think about groupthink and social loafing. First, I know there is a tendency for people to put forth less effort when working on a group task if the individual contributions aren’t evaluated. Alternatively, in groups there is a desire for harmony in decision-making. That means there won’t be as many extreme ideas, evaluation, or alternatives. Let’s keep this in mind and look at our four choices. We want to see which patter is most likely in a group.
Exam 2 P/S Solutions: Passage 6 31) This is something I think you should be looking to identify in any study you see on the MCAT. Knowing the ins and outs of these studies really helps you understand the big picture in every passage. This is something that can be used in every section of the exam. There are typically independent and dependent variables in every study or experimental passage. We need to identify both, and more importantly, we have to understand their relationship. An independent variable, just like its name suggests, can be controlled or changed during a study-this variable(s) is independent of the other factors of the experiment. As the independent variable is changed, we’re tracking the dependent variable to see the effect of the change in the independent variable. So, the independent variable varies, and we track the change on the dependent variable. In this study, we have Time 1 where the participants answered the state self-esteem questionnaire after their self-report measures. We also have Time 2 where participants completed the state self-esteem questionnaire again after getting feedback from their peers. The dependent variable in this case is going to be state self-esteem. That state self-esteem is what was measured at different points of the study and different parts of the study were manipulated. Answer choice C is going to be the best answer. The number of questionnaires and the age of the participants was controlled. The ratings of anxiety and depression were measured once, without any independent variables controlled. 32) Something I want you to note is, this could be a question in a huge portion of the passages you’ll see on the exam. It’s imperative you understand the experiments and studies you come across, because the test-maker can give you questions that show you understand the purpose, design, variables, results, and conclusions of any study or experiment. For this particular question, we can go through the four answer choices and see which statement is accurate regarding the research design.
33) Piaget’s theory of cognitive development in childhood focused on four key stages from birth to young adulthood. It’s crucial you know these for test day and the corresponding ages and details. In this case, we know the participants in the study are 10-13 years old.
34) This is essentially a content question that is asking the brain region that plays the biggest role in intense emotional responses. Let’s go through the four brain regions listed and see which one is most likely.
Exam 2 P/S Solutions: Passage 7 35) We can go back to the passage to determine what is preferred by 6- to 7-month-old infants in Study 2. We want to pay close attention to the very end here. 6- to 7-month-old infants preferred novel perceptual stimuli. What does novel mean? New or unusual, so something they hadn’t seen before. We want to know which set of images is LEAST likely preferred by the 6- to 7-month old infants. They prefer novel perceptual stimuli, so they would LEAST likely prefer two images that were very similar. If we have the familiarization phase and test phase consist of similar images, these infants would not be happy! The only answer choice that matches this breakdown is going to be answer choice B. We can see the familiarization phase and the test phase both show two rows that look similar: 36) This question is going to involve taking bits of information from multiple parts of the passage. Study 1 tested the ability of 3- to 4-month-old infants in the United States to organize visual pattern information based on lightness and darkness. The results indicated that 3- to 4-month-old infants preferred novel perceptual stimuli. In Study 2, 3- to 4-month-old and 6- to 7-month-old infants in the United States were tested on their ability to organize visual pattern information based on form. In this case, 3- to 4-month-old infants demonstrated no preference for novel or familiar images, but 6- to 7-month-old infants preferred novel perceptual stimuli. Biggest takeaway from these results is that the younger infant group could organize visual pattern information based on lightness and darkness, but it was not until infants were 6- to 7-month-olds that they could organize visual pattern information based on form.
37) Erikson’s Stages of Psychosocial Development are based on (and expand upon) Freud’s’s psychosexual theory. Erikson proposed that we are motivated by the need to achieve competence in certain areas of our lives. According to psychosocial theory, we experience eight stages of development over our lifespan, from infancy through late adulthood. We know we’re dealing with 3- to 4-month-old and 6- to 7-month-old infants in the United States which corresponds to the Trust vs. Mistrust stage. If you need to review the many stages, make sure to go to our content outline online and do so: jackwestin.com/resources/mcat-content/formation-of-identity/theories-of-identity-development
38) For Freud, childhood experiences shape our personalities and behavior as adults. Freud viewed development as discontinuous; he believed that each of us must pass through a series of stages during childhood and that if we lack proper nurturing and parenting during a stage, we may become stuck in, or fixated on, that stage. According to Freud, children’s pleasure-seeking urges (governed by the id) are focused on a different area of the body, called an erogenous zone, at each of the five stages of development (Psychosexual Stages of Development): oral, anal, phallic, latency, and genital. We know we’re dealing with 3- to 4-month-old and 6- to 7-month-old infants in the United States which corresponds to the oral stage. If you need to review these five stages, make sure to go to our content outline online and do so: jackwestin.com/resources/mcat-content/formation-of-identity/theories-of-identity-development
Exam 2 P/S Solutions: Passage 8 39) These types of questions can be a little tricky. Groupthink is something we should know from our content review, but the test-make specifically says “based on the passage.” What I like to do in this situation is include my definition of groupthink, and mold it according to the passage. Theoretically, my definition and the key points presented by the author should not differ when we’re dealing with a common behavioral term. Groupthink is a psychological phenomenon that occurs within groups of people when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives. The members of the group try and minimize conflict and reach a consensus decision without critical evaluation of alternative ideas or viewpoints. In the passage, the author mentions some groupthink symptoms that are consistent with my definition. These include making more rationalizations, introducing fewer facts, and discussing risks less frequently.
40) This question ties into what we just went over in Question 39. We said groupthink is a psychological phenomenon that occurs within groups of people when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives. The members of the group try and minimize conflict and reach a consensus decision without critical evaluation of alternative ideas or viewpoints. In the passage, the author mentions some groupthink symptoms that are consistent with my definition. These include making more rationalizations, introducing fewer facts, and discussing risks less frequently. If we can address these symptoms and causes of groupthink, we should be able to prevent groupthink.
41) To answer this question, we can think back to the research design in Study 2. For the interpersonal condition, participants were recruited in existing four-person friendship groups, while for the social identity condition, participants were randomly assigned to four-person groups. The groups imagined they won a student election and were asked to do various tasks. The author brings up the findings in the final paragraph of the passage. We want to find an alternative explanation for the findings. The alternative explanation shouldn’t contradict what the author reported in the passage, but rather offer a different way of thinking about the results.
42) This is almost like a standalone question where we’re comparing vocabulary terms. We want to compare groupthink, which is something that occurs within groups of people, to an individual-level effect. We said groupthink is a psychological phenomenon that occurs within groups of people when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives. The members of the group try and minimize conflict and reach a consensus decision without critical evaluation of alternative ideas or viewpoints. We want to define our four answer choices and note which individual-level effect is most similar to groupthink:
Exam 2 P/S Solutions: Questions 43-46 43) This is a standalone question that relies entirely on our general knowledge. Note the author says “most often linked” so we don’t have to worry about absolutes here which tends to come up when discussing left and right cerebral hemispheres. The human brain is composed of a right and a left hemisphere, and each participates in different aspects of brain function. A longitudinal fissure separates the human brain into two distinct cerebral hemispheres connected by the corpus callosum. The two sides resemble each other and each hemisphere’s structure is generally mirrored by the other side. Despite the strong anatomical similarities, the functions of each cortical hemisphere are distinct. Broad generalizations are often made in popular psychology about one hemisphere having a broad label, such as “logical” for the left side or “creative” for the right.
44) This question is asking about an explanation that is all too familiar for premed and medical students! We can define all four memory constructs and note which one explains why studying material right before sleep will perform better on a recall measure the next morning the individuals who watch something after studying.
45) We’re given a specific example here where individuals delay gratification to instead get long-term rewards. We want to know which type of intelligence is involved in this decision. We’ll go through the four different types of intelligence presented to us. We can define each and find the intelligence type that is described in the question stem.
46) This is something I think you should be looking to identify in any study you see on the MCAT. For this question, we’re given only a sentence about the research, but knowing the ins and outs of these studies really helps you understand the big picture in every passage. This is something that can be used in every section of the exam. There are typically independent and dependent variables in every study or experimental passage. We need to identify both, and more importantly, we have to understand their relationship. An independent variable, just like its name suggests, can be controlled or changed during a study-this variable(s) is independent of the other factors of the experiment. As the independent variable is changed, we’re tracking the dependent variable to see the effect of the change in the independent variable. So, the independent variable varies, and we track the change on the dependent variable. In escape learning, an individual learns to perform a behavior to stop an aversive stimulus. It’s not full avoidance, but rather gives the individual the ability to escape. In this question, the dependent variable is the measure of escape learning.
Exam 2 P/S Solutions: Passage 9 47) The author tells us in the passage that researchers genetically engineered mice with altered expression of the genes coding for the β-amyloid (Aβ) and neurofibrillary tangle (NFT) proteins. When we get to Figure 1 later in the passage, we also notice these mice with modified genes have higher levels of freezing (a character in AD). We can relate AD with β-amyloid and neurofibrillary tangle proteins. We know Alzheimer’s disease is a neurodegenerative disease named after Alois Alzheimer. Along with his colleagues, Alzheimer examined a woman’s brain following her death and reported the presence of abnormal clumps, which are now called amyloid plaques, along with tangled brain fibers called neurofibrillary tangles. Amyloid plaques, neurofibrillary tangles, and an overall shrinking of brain volume are commonly seen in the brains of Alzheimer’s patients. We expect the genetically modified mice will have higher expression levels of Aβ and NFT.
48) This question is also relying on us knowing exactly what is going on in the study. So many AAMC passages revolve around studies and experiment. It’s imperative to know what’s going on at all times. We’re dealing with classical conditioning here. Classical conditioning is a form of learning whereby a conditioned stimulus (which we’re looking to identify) becomes associated with an unrelated unconditioned stimulus to produce a behavioral response known as a conditioned response. The unconditioned stimulus is usually a biologically significant stimulus such as food or pain that elicits an unconditioned response from the start. The conditioned stimulus is typically neutral and produces no particular response at first, but after conditioning, it elicits the conditioned response. In this study, the conditioned stimulus is light and is paired with the unconditioned stimulus, foot shock. Ultimately, the conditioned responses is freezing and the induced fear.
49) This question ties directly into our previous question. We can review that necessary information here. Classical conditioning is a form of learning whereby a conditioned stimulus becomes associated with an unrelated unconditioned stimulus to produce a behavioral response known as a conditioned response. The unconditioned stimulus is usually a biologically significant stimulus such as food or pain that elicits an unconditioned response from the start. The conditioned stimulus is typically neutral and produces no particular response at first, but after conditioning, it elicits the conditioned response. In classical conditioning, the first phase of learning is known as acquisition, when an organism learns to connect a neutral stimulus and an unconditioned stimulus. During acquisition, the neutral stimulus begins to elicit the conditioned response, and eventually, the neutral stimulus becomes a conditioned stimulus capable of eliciting the conditioned response by itself. We want an answer choice that focuses on acquisition.
50) This is something I think you should be looking to identify in any study you see on the MCAT. For this question, we’re given only a sentence about the research, but knowing the ins and outs of these studies really helps you understand the big picture in every passage. This is something that can be used in every section of the exam. There are typically independent and dependent variables in every study or experimental passage. We need to identify both, and more importantly, we have to understand their relationship. An independent variable, just like its name suggests, can be controlled or changed during a study-this variable(s) is independent of the other factors of the experiment. That’s what we’re looking to identify in this particular study. As this independent variable is changed, we’re tracking the dependent variable to see the effect of the change in the independent variable. So, the independent variable varies, and we track the change on the dependent variable. Let’s go through our four options and identify an independent variable with this definition in mind.
51) This is a question that I would like to re-word to make a bit more straightforward. Not only can I put it in my own words, I can also relate it to my external knowledge that we’ll likely need to answer this question. We expect the genetically modified mice will have higher expression levels of Aβ and NFT. Aβ, NFT, and an overall shrinking of brain volume are commonly seen in the brains of Alzheimer’s patients. In other words, this question is asking for which observation we would NOT see in the brain of an Alzheimer’s patient.
52)
Exam 2 P/S Solutions: Passage 10 53) CBT in this passage is a weekly hour-long cognitive-behavioral therapy program that lasted eight weeks. That author mentions CBT included discussion of good health practices and decision-making processes. Let’s give some background. According to the theory that drives cognitive-behavioral therapy, the way a person thinks has a huge impact on what she or he says and does. this school of thought discusses the interplay among emotion, behavior, language, and thought. Since internal dialogue is a form of language, the way we speak to ourselves can influence our daily lives. Problems with our internal dialogue, known as cognitive distortions, can lead to negative behaviors or serious emotional problems. Let’s use the definition and what we’re told in the passage to find the best answer choice.
54) First thing we’re going to do is define structural functionalism. Structural functionalism sees society as a complex system whose parts work together to promote solidarity, stability, and equilibrium. A structural functionalist looks at things from a macro perspective and considers society as a complex system; they do not account for individuals. However, we’re interested in how this structural functionalist would interpret yoga as part of a smoking cessation therapy. Smoking cessation sounds like a latent function to a structural functionalist, meaning an indirect consequence of yoga.
55) Medicalization is the effort to describe a type of behavior as a symptom of an underlying illness that should be treated by a doctor. For example, there is an increasing effort to medicalize addiction (including addiction to smoking) and treat it as a disease of the brain. We want a statement that is consistent with this description of a smoker’s behavior.
56) We can review the research design used in the study and go through each of the techniques listed in our answer choices. We have to be careful with the verbiage here. Three of the answer choices list techniques that were employed in the research design, but we’re looking for the one that was NOT.
Exam 2 P/S Solutions: Questions 57-59 57) First thing we want to do here is break down what we know about correlations. A correlation test measures whether, and how two variables are related. A positive correlation (with a correlation coefficient >0, <1) indicates that as one variable changes, the other variable changes in the same direction. A negative correlation (with a correlation coefficient <0, >-1) indicates that as one variable changes, the other variable moves in the opposite direction. In this case, we have a fairly strong negative correlation. As alcohol consumption increases, internal locus of control decreases. As alcohol consumption decreases, internal locus of control increases. Locus of control is the extent to which someone believes they control the events that affect them.
58) This is something a lot of us can relate to! Even when we don’t try to do this, sometimes it’s natural to be more attentive and focused when we know we’re being observed, like in this case. We’ll go through the four concepts listed as answer choices and see which one best describes the phenomenon described in the question stem.
59) In this case, the individual’s income does not change much, despite losing his job. We want to explain this situation in terms of social mobility.
Which of the following demographics has the highest rate of alcohol use?Ethnic Demographics Including Ratings by Gender
White males (74.27%) and females (65.10%) have the highest rates of alcohol consumption. Latino males (69.99%) and females (49.52%) have the second-highest rate of alcohol consumption.
Which of the following best describes Kohlberg's pre conventional level of moral reasoning?Which statement best describes Kohlberg's preconventional level of moral reasoning? Moral reasoning is based on perceptions of the likelihood of external rewards and punishments.
What is one of the most common reasons for leaving home as stated by emerging adults?Rather than marriage, emerging adults are increasingly leaving their parents' home for other reasons including employment and educational opportunities, and to cohabit with intimate partners (Buck & Scott, 1993; Furstenberg, 2000; Goldscheider & Goldscheider, 1999).
Which statement accurately outlines the predicted employment for those with a college degree compared to those without a college degree?Which statement accurately outlines the predicted employment for those with a college degree compared to those without a college degree? The unemployment rate for college graduates is less than half the rate for those with a high school degree or less.
|