Practice Test 10 - MCAT Psychological, Social, & Biological Foundations of Behavior

20 questions. Answer them in any order, then submit to see your score and every explanation.

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1. A school-based study examined adolescent identity formation in relation to fitness content on social media. Students who followed "transformation" accounts reported more frequent body checking and greater belief that discipline is visible in physique. The association was stronger among students in higher-SES schools than lower-SES schools, even at similar levels of exposure. Which trend in media influence would be expected given the scenario?
2. A jury of 12 begins deliberations on a theft case. An initial anonymous ballot shows 7 favoring guilty and 5 favoring not guilty. As discussion continues, the foreperson repeatedly says, "Most of us already see it the same way," and jurors who disagree are asked to explain themselves first. Over time, several jurors switch to guilty, and the final vote is 12–0 guilty. The concept of interest is conformity. Which factor most likely contributed to conformity in this context?
3. In a newsroom, Talia is an editor who assigns stories but is also a direct report to the managing editor. The managing editor tells Talia to prioritize breaking news speed. The standards editor tells Talia to slow down and verify sources carefully after recent corrections. When a reporter asks whether to publish a story immediately, Talia says, "I'm being pushed to publish fast and also to wait for verification." What role-related tension is most evident?
4. A developmental researcher uses a standard infant habituation procedure. A 6-month-old infant is shown the same black-and-white checkerboard image repeatedly for 20-s trials. The infant's looking time declines from trial to trial. After the infant meets a criterion of reduced looking, the researcher briefly presents a novel colorful moving shape for one trial, then immediately presents the original checkerboard again. The infant's looking time to the checkerboard increases relative to the last habituation trial. Which interpretation is most consistent with the infant's behavior?
5. In a controlled lab task, participants worked in groups of four to solve puzzles for a small bonus. Midway through, the computer displayed feedback that one member had "reduced the group's score." This feedback was false and served as a provocation. In one condition, the group could send anonymous written comments to the "low scorer"; in the other, comments were signed with the sender's name. Coders rated aggression as insulting or threatening language, altruism as offering assistance or encouragement, and attraction as the "low scorer's" later choice to partner with the group again. Anonymous comments were more aggressive and less helpful; signed comments were more helpful, and the "low scorer" more often chose to partner again. Which outcome would be expected given the social context described?
6. A research clinic evaluates a patient with suspected dissociative amnesia after a severe psychological stressor. The patient shows intact orientation, language, and new learning on neuropsychological testing, but reports inability to recall autobiographical details about the stressful period. The clinician notes that the pattern suggests a retrieval problem rather than structural damage. Which observation would be most consistent with this interpretation?
7. At a volunteer event, a coordinator notices that one volunteer, Miles, leaves early. The coordinator tells others that Miles is "not dependable," even though Miles had mentioned a scheduled medical appointment earlier in the day. Another volunteer suggests that leaving early might have been unavoidable. The coordinator replies that "dependable people don't make excuses," and focuses on Miles's character. The coordinator does not confirm the reason for leaving. Which attribution error is most exemplified by the coordinator's judgment?
8. Historical Context: A hospital updated its infection-control policy in 2021 to require masks for all visitors in patient-care areas. Prior to the update, masks were recommended only during influenza season. After implementation, security staff were authorized to deny entry to visitors who refused to mask, while unit staff were encouraged to provide a free mask and a single reminder before calling security. In audit logs from the first month, most refusals occurred at entrances; refusals decreased after visible signage and consistent denial of entry. Which outcome best explains the observed decrease in refusals after the policy change?
9. A study of diabetes care measured the proportion of patients receiving an annual eye exam. Researchers applied intersectionality to evaluate how gender (men vs women) and immigration status (US-born vs foreign-born) jointly influence access to specialty referrals. Results: - US-born men: 66% - US-born women: 64% - Foreign-born men: 58% - Foreign-born women: 44% What outcome would be expected under the intersectionality framework when designing an intervention to increase eye-exam rates?
10. To evaluate signal detection in airport security screening, trainees viewed X-ray images that sometimes contained a prohibited item (signal) amid clutter (noise). One trainee was instructed that missing a prohibited item is very costly; another was told that unnecessary bag checks are very costly. Which pattern of responses is most consistent with signal detection theory?
11. A researcher studies the effect of a single all-nighter on emotional regulation. Participants either sleep normally or remain awake for 24 hours. The next evening, they view negative images while attempting to use cognitive reappraisal (reinterpret the meaning of the image). Sleep-deprived participants report greater difficulty reappraising and show more impulsive responses on a separate inhibition task. Which outcome is most likely given the scenario described?
12. In a social experiment on implicit bias in clinical decision making, medical trainees reviewed a set of standardized patient vignettes that were identical except for the patient's group membership cue. Trainees made a rapid triage decision (urgent vs non-urgent) under either high cognitive load (simultaneous digit-span task) or low load. The study found that under high load, trainees were less likely to assign "urgent" to patients from Group Z, despite equivalent symptom severity; under low load, the group difference was smaller. Self-reported egalitarian values did not differ across conditions. Which statement best reflects the findings of the study?
13. In a cultural context, a visiting student presents their achievements in a group meeting by saying, "I led the project and my approach was the most effective." A local colleague advises the student to instead emphasize the team's effort and express gratitude to senior members to avoid seeming disrespectful. Which outcome is most likely given the described strategies?
14. A charter school requires uniforms and enforces consistent rules for addressing teachers (e.g., using titles). Students report that they initially complied to avoid punishment but later felt that the practices signaled respect and became part of "how to act." Which outcome would be expected based on the socialization process described?
15. In a classroom lab group, students are assigned to design an experiment. Two students are varsity athletes and frequently reference "how our team does things," while another student is an international student who is quieter during meetings. The group repeatedly assigns the athletes to present and to negotiate with the instructor, while the international student is asked to compile references and handle formatting. When the international student suggests a different experimental design, the group does not discuss it and returns to the athletes' plan. The concept of interest is social identity theory. What outcome would be expected if social identity theory is applied?
16. A study of peer influence examines driving decisions in a simulator. Participants complete a route alone or with two same-age peers present (silent observers). At a yellow light, a participant who typically brakes decides to accelerate through the intersection when peers are present, later stating, "I didn't want to look overly cautious." Based on the scenario, which behavior is most likely explained by peer influence?
17. A controlled study examined norm enforcement in a gym where posted signs requested members to wipe down equipment after use. Confederates either wiped equipment (control) or walked away without wiping (violation). Observers recorded sanctions: in the violation condition, 33% of bystanders verbally reminded the confederate, 40% used nonverbal disapproval, and staff intervened in 7% of cases. Which outcome best explains the community's response to the deviant behavior?
18. In a coastal town, a growing immigrant community opens small businesses and establishes a cultural center. Long-term residents report more diverse restaurants but also say they mostly socialize within their existing circles. Newcomers report strong within-group support but limited cross-group friendships. Concept: bonding vs bridging social capital. Based on the description, which conclusion is most consistent with the social dynamics described?
19. A hypothetical study tests whether observing consequences affects imitation. Participants watch a video of a model using a novel phone gesture to unlock an app. In the "rewarded model" condition, the model unlocks the app successfully and says, "That worked!" In the "punished model" condition, the model uses the same gesture but the phone emits an error tone and the model shows embarrassment. Participants then receive the phone and are told to unlock the app, with no direct feedback initially. This design targets vicarious reinforcement as part of observational learning. Which outcome is most expected?
20. In a double-blind study, 60 healthy adults received either a single oral dose of a selective serotonin reuptake inhibitor (SSRI) or placebo 3 hours before completing a computerized go/no-go task during fMRI. The primary behavioral outcome was false alarms (responding on no-go trials), interpreted as reduced inhibitory control. fMRI analyses focused on ventromedial prefrontal cortex (vmPFC) and amygdala reactivity to negatively valenced distractor images presented between trials. The SSRI group showed reduced amygdala BOLD response to distractors and increased vmPFC–amygdala functional connectivity relative to placebo, while overall reaction time on go trials did not differ. Which behavior change is most consistent with these observed neurotransmitter and brain-structure effects?

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