Practice Test 6 - 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 clinical psychologist evaluates a 45-year-old patient who reports that "food tastes bland" after a recent viral illness. The patient can still detect whether foods are sweet or salty but struggles to distinguish strawberry vs. cherry candy when blindfolded. The patient also reports decreased enjoyment of meals and reduced motivation to cook, despite denying depressed mood before the illness. Which expected outcome is most consistent with disruption of the olfactory pathway in this scenario?
2. A city implements a new park and walking trail in a low-income neighborhood. After 18 months, self-reported physical activity increases modestly, but obesity rates do not change. The city interprets the result as showing that single environmental changes may be insufficient given broader SES-related constraints (e.g., food access, work hours). Which statement best aligns with that interpretation?
3. Researchers studied auditory localization using brief clicks presented through headphones with controlled timing differences between ears. When the click arrived slightly earlier to the right ear, participants perceived the sound as coming from the right. Which of the following best explains the sensory process described?
4. Researchers assessed Drive Reduction Theory in salt appetite. Participants were placed on a low-sodium diet for 48 hours, leading to increased aldosterone (a hormone that promotes sodium retention) and self-reported craving for salty foods. In a buffet, participants could choose between high-sodium soup and low-sodium soup with similar calories. Which selection is most consistent with Drive Reduction Theory and the biological state? Assume participants like both soups equally at baseline.
5. A contemporary movement for criminal-justice reform coordinates court-watch programs. Participation is highest among retirees and graduate students who report flexible schedules, and among people affiliated with local advocacy nonprofits that provide training materials. Organizers interpret the pattern using resource mobilization theory. Which conclusion is most consistent with the theory applied?
6. A sound localization study compared localization accuracy for a 6000 Hz tone versus a 300 Hz tone, both presented from 45° to the right. When intensity cues were minimized (equalized at the eardrums using individualized calibration), localization remained relatively accurate for the low-frequency tone but degraded for the high-frequency tone. Which statement best explains the auditory phenomenon described?
7. A study uses symbolic interactionism to examine how family involvement shapes day-to-day educational experiences. In observed parent-teacher conferences at one middle school, teachers more often describe students with frequent parental contact as "motivated" and recommend them for enriched classes. Students whose caregivers work multiple jobs attend fewer conferences and are more often described as "unprepared," even when grades are similar. The researcher argues that these interactional labels can influence subsequent opportunities through self-fulfilling prophecies. Based on the vignette, which interpretation best fits symbolic interactionism?
8. In a preregistered field study of medication adherence among adults newly prescribed antihypertensives, researchers measured baseline Five Factor Model conscientiousness (self-discipline/orderliness) and then delivered identical SMS reminders for 8 weeks. Participants high in conscientiousness were more likely to (i) set a fixed daily dosing routine, (ii) use a pill organizer, and (iii) log doses without being prompted. Based on the Five Factor Model, which behavior is most indicative of high conscientiousness in this context?
9. A study examined sleep deprivation and cognitive control in 48 healthy adults. Participants completed a baseline session after 8 hours of sleep, then were randomized to either 24 hours of sustained wakefulness (deprivation group) or a normal sleep night (control). The next morning, they completed a 20-minute sustained attention task and a working-memory updating task. The deprivation group showed a large increase in reaction-time variability and more brief lapses (missed targets), while their average reaction time increased only modestly. Self-reported effort was similar across groups, and caffeine was prohibited. Which of the following best explains the changes observed in the study?
10. In an experimental study on learning a new surgical-knot technique, first-year medical students complete a baseline trial, then watch either (i) a short video showing a peer making several errors and eventually succeeding after practice, or (ii) a video showing an expert succeeding effortlessly. Before the second trial, students rate how confident they are that they can master the knot within 20 minutes of practice. According to Bandura's model, which outcome would most directly indicate an increase in self-efficacy produced by the peer video? Students in the peer-video condition choose to attempt the knot again after an initial failure and persist for the full practice period, despite similar baseline performance.
11. A research team tests cognitive dissonance theory by asking participants who oppose animal testing to record a short video defending it "for scientific progress." Participants are told they may refuse, and the payment is $1. Afterward, several participants report slightly more favorable attitudes toward animal testing. Based on the theory, which outcome is most likely responsible for the attitude shift?
12. In a classroom group project, five students split tasks and agree on a norm that critiques should be phrased as suggestions (e.g., "Could we consider…?"). During meetings, one student repeatedly uses blunt statements like "This is wrong," and others begin to avoid sharing drafts. After the instructor reminds the group of their agreed-upon feedback style, participation increases and students share more work-in-progress. Which scenario element best reflects how norms influence group interaction?
13. A cognitive psychology experiment tests divided attention (allocating attention to two tasks at the same time). Participants perform a visual task: press a button when a blue circle appears among gray circles. In some blocks they do only this task. In other blocks they simultaneously perform an auditory task: count backward by 3s aloud. Reaction time and accuracy are measured for the visual task. Based on divided attention theory, which effect is most consistent with the dual-task condition compared with the single-task condition?
14. A study tests habituation to a mild visual distractor. While participants perform a reaction-time task, a small gray square appears in the corner of the screen every 8 seconds. Eye-tracking shows that early in the session participants frequently glance at the square, but later they rarely do. Near the end, the square briefly changes shape to a triangle for one presentation, then returns to a square; glances to the square increase on the next square presentation. Which observation is most consistent with dishabituation?
15. A longitudinal study interviews 10th-grade students about future plans. One participant reports trying different friend groups, electives, and part-time jobs but says, "I'm not ready to decide what matters most yet." The researchers frame this as Erikson's identity vs role confusion stage and focus on the process of exploring alternatives without firm commitment. Based on the scenario, which conclusion about identity formation is most consistent with Erikson's theory?
16. While the biological basis of somatic symptom disorder is not fully understood, some theories propose it involves a dysfunction in how the brain processes and interprets bodily sensations. This suggests an abnormality in the neural processes of:
17. In a divided attention experiment, participants either (1) read a short passage silently (single-task) or (2) read while monitoring a separate stream of digits and pressing a button whenever "7" appeared (dual-task). Comprehension was assessed by inference questions, not simple recall. Divided attention predicts performance costs when tasks draw on overlapping resources. Which outcome is most likely?
18. A researcher distinguishes between observational learning and classical conditioning in a study of a new phone app gesture. Participants watch a model use a two-finger swipe to open a hidden menu. No sounds, rewards, or emotional stimuli are paired with the gesture; participants simply observe the action and its outcome on the screen. Later, participants use the app. Which finding best supports that learning occurred via observational learning rather than classical conditioning?
19. In an educational intervention, students who initially opposed vaccination requirements (attitude rating 2–3 on a 7-point scale) were asked to write a short essay arguing in favor of requirements for a class assignment. One student later commented, "I still dislike mandates, but I can see why schools might need them." Based on cognitive dissonance principles, what attitude change is most expected when students freely perceive their essay as reflecting their own stance?
20. A pediatric clinic evaluates whether vicarious reinforcement enhances observational learning. Children waiting for appointments watch a staff member demonstrate a hand-sanitizing routine (apply gel, rub palms, rub between fingers, rub thumbs) on video. In one version, the model receives enthusiastic praise from another staff member ("Great job staying healthy!"). In another version, the model receives no reaction. Afterward, children are escorted to a sink area with sanitizer available and are observed unobtrusively. Which factor is most likely to enhance the effectiveness of modeling in this context?

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