Here's a free AP Psychology Unit 5 practice test: 20 AP-style MCQs on mental and physical health, seven scenario and data stimuli, and a full rationale for every answer, all aligned to the 2024-25 CED.
Below, three mistakes I see students make on Unit 5 and how to avoid them, plus one worked example so you can see the reasoning.
Unit 5 is 15-25% of the exam (every unit is weighted equally under the redesigned CED, so no single unit is "the biggest"). It's the clinical unit: health psychology, positive psychology, how psychological disorders are classified and grouped in Topic 5.4, and the main treatment approaches in Topic 5.5. It's also the unit where language matters most: person-first phrasing ("people diagnosed with schizophrenia") is a widely recommended clinical style, and it's a good default to use when writing about anything in this unit. For the full 5-unit map, see our AP Psychology units guide.
Free download: grab the 20-question AP Psychology Unit 5 practice test (PDF) with a full answer key. Download the PDF
What Unit 5 MCQs really test
AP Psych MCQs mostly don't ask you to recall a definition in isolation. The 75-question multiple-choice section leans stimulus-heavy: many items sit on a clinical vignette, a data table, a treatment comparison or a research study, and you're expected to apply the concept, not just name it.
One framing point matters more than any other for Unit 5: Topic 5.4 centres on ten disorder categories (anxiety, obsessive-compulsive and related, depressive, bipolar and related, trauma- and stressor-related, dissociative, feeding and eating, personality, schizophrenia spectrum, neurodevelopmental). Anything well outside that list (adjustment disorder, factitious disorder, sleep-wake disorders as diagnostic categories) is unlikely to be the answer on Unit 5 items. Treatments in 5.5 sit tightly around behavior therapy, cognitive therapy, cognitive behavioral therapy (CBT), humanistic (Rogerian client-centered), psychodynamic, group therapy, biofeedback, drug therapies, evidence-based practice, and cultural humility. For the wider research-skill lens, our AP Psychology research methods guide covers the study designs Unit 5 loves to test.
Common stimulus formats on Unit 5 items include:
- Health-psychology vignettes on stress, coping style, and immune outcomes
- Positive-psychology data tables that pair a well-being scale with a physical-health measure
- Clinical vignettes where you match symptoms to a DSM-5-TR disorder category
- Bipolar versus substance-induced episodes as a diagnostic contrast
- Positive versus negative symptoms in a single schizophrenia spectrum stimulus
- Treatment-outcome tables comparing two therapies plus a waitlist
- Behavior-therapy scenarios (systematic desensitization, exposure hierarchies)
The practice test in the PDF mirrors that mix. Each item is tagged to a Unit 5 topic (5.1 through 5.5) and to a named AP Psych Science Practice.
Three common mistakes I see students make on Unit 5
Every year I see students walk into Unit 5 MCQs making the same three moves. All three are "often confused" pairs that come up on treatment and diagnostic items, so catching yourself doing any of them buys you marks with no extra content revision.
1. Treating CBT as "just behavior therapy with a bit of talking"
Cognitive behavioral therapy (CBT) gets collapsed into pure behavior therapy on a lot of student answers. I see this every year on treatment items: students describe CBT as if it were only exposure and conditioning, and lose the cognitive half of the technique.
Here's the CED-clean split. Behavior therapy targets behavior via classical or operant conditioning: systematic desensitization pairs relaxation with a graded hierarchy of feared situations; token economies reinforce target behaviors. CBT adds a cognitive layer: the therapist and client identify recurring automatic thoughts, test the evidence for and against them, and plan small behavioral experiments to check the updated belief. Humanistic (Rogerian client-centered) therapy is a different animal again: unconditional positive regard and reflective listening, no thought-testing, no exposure hierarchy. If a stem describes automatic-thought testing plus scheduled experiments, it's CBT. If it describes only relaxation and a graded fear hierarchy, it's behavior therapy. If it describes reflective listening and warmth without conditions, it's humanistic.
2. Reading positive psychology as "just be happy"
Positive psychology often gets caricatured on student answers as toxic positivity: feel happy at all times, treat low mood as failure, ignore negative emotions. Students commonly over-simplify well-being constructs in their responses, and the same pattern shows up in MCQ distractors that pitch positive psychology against clinical treatment.
Positive psychology, as taught in Topic 5.2, is broader than that. It examines character strengths, meaning, resilience, gratitude, engagement (often described as flow), and post-traumatic growth. It sits alongside approaches that focus on relieving distress, not in place of them. Two clean rules for MCQ stems: (1) if a stimulus describes deep absorption in a task where challenge and skill are well matched, that points to flow or high engagement rather than general "happiness"; (2) if a distractor equates positive psychology with feeling good all the time, it's a trap.
3. Merging positive and negative symptoms of schizophrenia spectrum disorders
Positive and negative symptoms of schizophrenia spectrum disorders trip students up because the everyday meaning of the words works against the technical one. A mistake I see often on symptom-classification items is students labeling reductions in functioning (flat affect, social withdrawal) as "positive" and hallucinations as "negative", because the plus/minus reads intuitively as good/bad.
The rule to hold on to: positive symptoms add experiences that typically are not present (hearing voices, holding fixed unusual beliefs). Negative symptoms reduce typical functioning (reduced speech, flat facial expression, social withdrawal, reduced motivation). The plus/minus is about experiences added or removed, not about the value of the symptom. A stimulus that mixes both is asking you to sort them: everything the client describes hearing or believing goes in the positive column, everything family members describe as "less of X than before" goes in the negative column. Person-first phrasing matters too: prefer "a client diagnosed with a schizophrenia spectrum disorder" over the older shorthand.
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Get started for free!A worked example
Here's a question straight from the Unit 5 pack. The stimulus: a community mental-health center is comparing three brief interventions for adults diagnosed with generalized anxiety. Adults who request treatment are placed into one of three eight-week programs using a computerized randomizer, and all outcomes are measured with the same standardized anxiety inventory.
| Program | Pre-treatment mean | Post-treatment mean |
|---|---|---|
| Cognitive behavioral therapy (CBT) | 34.2 | 18.5 |
| Client-centered (Rogerian) therapy | 33.8 | 27.9 |
| Waitlist control | 34.1 | 32.6 |
The stem: "Based on Table 2, which conclusion is best supported for the two active programs compared with the waitlist?"
- (A) The waitlist group improved by the same average amount as clients in the client-centered condition across the trial.
- (B) The CBT program showed a larger average drop in anxiety scores than either comparison condition.
- (C) The two active therapies produced identical average score changes for participants who completed the trial.
- (D) Only the client-centered condition showed any measurable change in anxiety inventory scores across the trial.
Answer: B. The CBT row shows the largest average drop in Table 2 (34.2 to 18.5, a change of 15.7) compared with client-centered therapy (33.8 to 27.9, a change of 5.9) and the waitlist (34.1 to 32.6, a change of 1.5). Option A misreads the waitlist row (the waitlist barely moved, so it can't match the client-centered change). Option C is inconsistent with the different pre-post gaps: CBT dropped 15.7 and client-centered dropped 5.9, so they can't be identical. Option D ignores the CBT program's larger change, which is the point of running the trial in the first place.
Three MCQ strategy tips for Unit 5
1. Learn the ten Topic 5.4 categories, then stop
Topic 5.4 centres on ten disorder categories: anxiety, obsessive-compulsive and related, depressive, bipolar and related, trauma- and stressor-related, dissociative, feeding and eating, personality, schizophrenia spectrum, and neurodevelopmental. In practice, categories well outside those ten (adjustment disorders, sleep-wake disorders as clinical categories, somatic symptom disorders) are unlikely to be the intended answer on Unit 5 items.
So when you're studying, spend your time on the defining features of each of the ten, and on the pairs students confuse most: obsessive-compulsive versus specific phobia (obsessions plus compulsions versus a single feared object), bipolar versus depressive (do elevated-mood episodes appear or not), trauma- and stressor-related versus depressive (is there a specific triggering event with intrusive memories and hyperarousal). If a distractor uses a category outside that ten-item set, it's usually a trap.
Source: AP Psychology CED, Topic 5.4.
2. Match the therapy in the stem to its mechanism, not its vibe
Every therapy on the CED has a mechanism you can name in one line:
- Behavior therapy uses conditioning (systematic desensitization pairs relaxation with a graded fear hierarchy; token economies reinforce target behaviors).
- Cognitive therapy identifies and challenges recurring automatic thoughts.
- Cognitive behavioral therapy (CBT) combines the two: identify automatic thoughts, test the evidence, plan behavioral experiments.
- Humanistic (Rogerian client-centered) relies on unconditional positive regard and reflective listening.
- Psychodynamic brings unconscious conflicts into awareness.
- Biofeedback uses real-time physiological signals to teach clients to lower arousal.
- Drug therapies target neurotransmitter systems: antidepressants, antipsychotics, anxiolytics, mood stabilizers.
On any 5.5 stem, read the described mechanism and match to the therapy that runs on that mechanism. This is a lot faster than matching therapy by "feel", which is where a lot of students lose the point.
3. Read every clinical stimulus with person-first phrasing in mind
Person-first language is a good default when writing about anyone in Unit 5: "a client diagnosed with a schizophrenia spectrum disorder" reads better than the older shorthand and aligns with how clinical psychology is currently taught. Distractors that lean on stigmatizing framing or over-generalize ("everyone with depression feels X", "people with anxiety always avoid Y") tend to be traps.
Two clean rules for reading clinical stimuli: (1) the described symptoms need to meet a threshold of clinically significant distress or impairment before a diagnosis is considered, so a distractor that skips that threshold is likely wrong; (2) a diagnosis in one category never rules out symptoms that could appear in others, so "the client has X, therefore they can't have Y" is usually a wrong-answer shape. Reading with these two rules in the background makes the correct choice easier to spot.
How to use the practice test
I recommend a three-pass method.
- First, an untimed pass: no clock, no pressure, roughly 90 seconds per question. The goal is diagnostic. You want to see whether you can reason from the stimulus at all, and to flag any Unit 5 topics you keep missing.
- Second, a timed pass one week later: 24 minutes for 20 questions, which matches the AP exam pace of about 72 seconds per MCQ (90 minutes across 75 questions).
- Third, a review pass: check the answer key, then revise weak topics on Cognito's AP Psychology notes before you retry the missed questions a week after that.
The gap between passes is where the learning sticks. For general study habits across the whole course, see how to study for AP Psychology.
For the full AP Psychology course (video lessons, quizzes, flashcards and past FRQs, unit by unit) head to Cognito's AP Psychology notes.
