IB DP · Thinka-original Practice Paper

2023 IB DP Psychology Practice Paper with Answers

Thinka Nov 2023 SL (TZ2) IB Diploma Programme-Style Mock — Psychology

71 marks180 mins2023
An original Thinka practice paper modelled on the structure and difficulty of the Nov 2023 SL (TZ2) IB Diploma Programme Psychology paper. Not affiliated with or reproduced from IB.

Paper 1 Section A

Answer all three short-answer questions. One question will be set from each of the three core approaches.
3 Question · 27 marks
Question 1 · SAQ
9 marks
Explain how one neurotransmitter affects human behaviour, with reference to one relevant study.
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Worked solution

Neurotransmission is the process by which chemical messengers called neurotransmitters transmit signals across a chemical synapse from one neuron to another. One neurotransmitter that significantly affects human behaviour is serotonin, which is involved in the regulation of mood, impulse control, and social behaviour, specifically prosocial behavior and harm aversion. Crockett et al. (2010) investigated the effect of serotonin on moral decision-making. The researchers used a double-blind, repeated-measures design with a sample of healthy participants. In one condition, participants were given a dose of citalopram, a selective serotonin reuptake inhibitor (SSRI) that increases the concentration of active serotonin in the synaptic cleft. In the control condition, they received a placebo. Participants were then presented with a series of moral dilemmas, including personal dilemmas (such as the trolley problem where one must actively push a man off a bridge to stop a runaway trolley and save five people) and impersonal dilemmas (such as flipping a switch to divert the trolley). The results showed that participants in the citalopram condition were significantly less likely to choose to push the man off the bridge in the personal dilemma compared to those in the placebo condition. However, serotonin did not affect choices in impersonal moral dilemmas. This study demonstrates that increased levels of serotonin selectively promote prosocial behaviour by enhancing harm aversion, making individuals more reluctant to directly inflict harm on others.

Marking scheme

Marks are awarded based on the standard IB 9-mark SAQ rubric: 1 to 3 marks: The response shows limited understanding, or describes a study with little to no link to the neurotransmitter's effect on behaviour. 4 to 6 marks: The response describes the neurotransmitter and a relevant study, but the link explaining *how* the neurotransmitter influences the specific behaviour is incomplete or superficial. 7 to 9 marks: The response clearly identifies one neurotransmitter, accurately describes its mechanism of action on a specific behaviour, and fully integrates a relevant study with accurate details of its methodology and findings.
Question 2 · SAQ
9 marks
Explain one cognitive bias, with reference to one relevant study.
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Worked solution

A cognitive bias is a systematic error in thinking that affects the decisions and judgments that people make. One such bias is the anchoring bias, which occurs when individuals rely too heavily on the first piece of information offered (the 'anchor') when making decisions or estimates, even if that anchor is completely arbitrary. Tversky and Kahneman (1974) demonstrated the anchoring bias in an experiment using high school students. Participants were divided into two conditions and asked to estimate the product of a series of numbers within 5 seconds. In the 'ascending' condition, the problem was written as 1x2x3x4x5x6x7x8. In the 'descending' condition, the problem was written as 8x7x6x5x4x3x2x1. Because the time limit was too short to perform the actual calculation, participants had to make an estimate based on their initial computations. The results showed that the median estimate for the ascending group (where the initial numbers were small, acting as a low anchor) was 512. In contrast, the median estimate for the descending group (where the initial numbers were larger, acting as a high anchor) was 2,250. The actual answer is 40,320. This study illustrates anchoring bias by demonstrating how the initial sequence of numbers acted as an anchor that biased the participants' final estimations, showing that human decision-making relies heavily on immediate focal points.

Marking scheme

Marks are awarded based on the standard IB 9-mark SAQ rubric: 1 to 3 marks: The response offers a superficial definition of a cognitive bias, or describes a study without clearly identifying a specific cognitive bias. 4 to 6 marks: The response accurately defines one cognitive bias and outlines a relevant study, but the explanation of how the bias influences thinking/decision-making lacks depth. 7 to 9 marks: The response provides a precise and detailed explanation of the cognitive bias, fully integrated with an accurate description of a relevant study (aims, method, results), clearly demonstrating how the study supports the explanation of the bias.
Question 3 · SAQ
9 marks
Explain how one cultural dimension may influence human behaviour, with reference to one relevant study.
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Worked solution

Cultural dimensions are perspectives of a culture based on values and cultural norms, as proposed by researchers like Geert Hofstede. One prominent cultural dimension is individualism versus collectivism. Individualistic cultures value personal autonomy, unique identity, and self-reliance, whereas collectivistic cultures emphasize group harmony, interdependence, and shared responsibility. This dimension can significantly influence the behaviour of conformity. Berry (1967) investigated how the cultural dimension of individualism/collectivism affects conformity rates using a variation of the Asch paradigm. The researcher studied two distinct societies with different subsistence economies: the Temne of Sierra Leone (an agricultural society that relies on cooperation to harvest crops, reflecting collectivistic values) and the Inuit of Baffin Island (a hunting and fishing society that requires individual initiative, reflecting individualistic values). Scots were used as a control group. Participants were shown a series of lines of varying lengths and asked to identify which line matched a target line. In later trials, they were given a hint, being told that most people from their respective culture chose a specific (incorrect) line. The results showed that the Temne (collectivistic) had a significantly higher tendency to conform to the incorrect group norm than the Inuit (individualistic), who largely ignored the hint. This study demonstrates that cultural dimensions, shaped by economic and ecological demands, influence behaviour by encouraging high conformity in collectivistic cultures to maintain social cohesion, while promoting independence and low conformity in individualistic cultures.

Marking scheme

Marks are awarded based on the standard IB 9-mark SAQ rubric: 1 to 3 marks: The response identifies a cultural dimension or a study, but with significant inaccuracies or lack of connection between them. 4 to 6 marks: The response describes a cultural dimension and outlines a relevant study, but the link explaining how the cultural dimension actually influences the specific behaviour remains underdeveloped. 7 to 9 marks: The response clearly and accurately defines the cultural dimension, provides a detailed account of a relevant study, and explicitly explains how the cultural dimension influences the targeted behaviour.

Paper 1 Section B

Answer one essay question from a choice of three. Questions will be set from the three core approaches.
2 Question · 44 marks
Question 1 · Essay
22 marks
Discuss the influence of emotion on one cognitive process.
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Worked solution

An excellent response will structure the essay as follows:

1. **Introduction**:
- Define the chosen cognitive process (memory) and state how emotion acts as a variable.
- Introduce Flashbulb Memory (FBM) theory, proposed by Brown and Kulik (1977), which suggests that highly emotional and unexpected events trigger a specialized neural mechanism that records details with photographic-like clarity.
- Outline the dual aspects of FBM: vividness/confidence (subjective experience) and accuracy (objective truth).

2. **Theory Presentation (Brown & Kulik's Model)**:
- Explain the two core mechanisms: the mechanism of formation (high surprise and personal consequentiality trigger a biological 'now print' mechanism) and the mechanism of maintenance (overt and covert rehearsal preserve the memory).

3. **Empirical Evidence Supporting the Influence of Emotion**:
- **Brown and Kulik (1977)**: Investigated FBMs of assassinations (e.g., JFK, Martin Luther King Jr.). They found that participants had vivid, detailed memories of where they were and what they were doing, and that personal consequentiality affected the likelihood of forming FBMs (e.g., Black participants had more FBMs for MLK Jr.'s assassination than White participants).
- **Sharot et al. (2007)**: Used fMRI to observe brain activity three years after the 9/11 attacks. Participants closer to the World Trade Center showed selective activation of the amygdala when recalling the event compared to control autobiographical memories, providing biological evidence for a distinct emotional memory pathway.

4. **Counter-Evidence & Critical Discussion**:
- **Neisser and Harsch (1992)**: Tested the accuracy of FBMs of the Challenger space shuttle disaster. Participants were surveyed 24 hours after the event and again 2.5 years later. Despite high confidence and vividness, accuracy was very low (average score of 2.95 out of 7), demonstrating that emotion enhances the *confidence* but not necessarily the *accuracy* of memory, which remains reconstructive.
- **Talarico and Rubin (2003)**: Compared memories of 9/11 with everyday memories. They found that while emotional memories remained highly vivid and participants believed them to be highly accurate, their actual rate of decay in details was identical to that of neutral everyday memories.

5. **Evaluation/Synthesis**:
- Discuss the difficulty of measuring emotional arousal and accuracy in naturalistic settings.
- Discuss the ethical issues and retrospective nature of Flashbulb Memory research.
- Evaluate the cognitive-biological connection: how the amygdala modulates the hippocampus to prioritize emotional stimuli, even if details are subject to post-event schema-driven reconstruction.

6. **Conclusion**:
- Summarize the main points. Conclude that while emotion profoundly influences memory by increasing subjective vividness, confidence, and neural salience, it does not guarantee objective accuracy or shield the memory from reconstructive decay.

Marking scheme

In accordance with IB Psychology ERQ assessment criteria (Total 22 Marks):

**Criterion A: Focus on the question (2 marks)**
- **2 marks**: The response is fully focused on the task, identifying a specific cognitive process (memory) and clearly explaining the influence of emotion (FBM theory).
- **1 mark**: The response is partially focused but wanders into irrelevant areas.

**Criterion B: Knowledge and understanding (6 marks)**
- **5-6 marks**: Detailed, accurate, and highly relevant knowledge of FBM theory and the influence of emotion is demonstrated. Key terminology is defined and used appropriately.
- **3-4 marks**: Relevant knowledge is demonstrated but contains minor inaccuracies or lacks depth.
- **1-2 marks**: Superficial knowledge with significant inaccuracies.

**Criterion C: Use of research to support knowledge (6 marks)**
- **5-6 marks**: Relevant research (e.g., Brown & Kulik, Neisser & Harsch, Sharot et al.) is accurately described, highly applicable, and effectively used to support the argument.
- **3-4 marks**: Research is described but not fully integrated, or contains errors in methodology/findings.
- **1-2 marks**: Limited or irrelevant research is cited.

**Criterion D: Critical thinking (6 marks)**
- **5-6 marks**: Critical evaluation is consistent, well-developed, and balanced. Methodological limitations of studies (e.g., fMRI limitations, retrospective self-reports) and theoretical limitations are thoroughly discussed.
- **3-4 marks**: Some critical thinking is present but lacks depth or is applied inconsistently.
- **1-2 marks**: Descriptive response with little to no critical evaluation.

**Criterion E: Clarity and organization (2 marks)**
- **2 marks**: The essay is well-structured, logical, and easy to follow.
- **1 mark**: The essay has some structure but lacks logical flow in parts.
Question 2 · Essay
22 marks
Discuss the influence of emotion on one cognitive process.
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Worked solution

### Essay Outline

#### 1. Introduction
- **Define key terms:** Cognitive process (Memory), Emotion (physiological and psychological state of arousal).
- **Introduce the Theory:** Brown & Kulik (1977) proposed the theory of Flashbulb Memory (FBM). FBM refers to vivid, detailed, and highly resilient memories of the circumstances surrounding reception of news of a highly surprising and emotionally significant event.
- **Thesis Statement:** While emotion significantly increases the subjective vividness and confidence associated with a memory, empirical research suggests it does not necessarily protect the memory from inaccuracy and decay over time.

#### 2. Flashbulb Memory Theory (Brown & Kulik, 1977)
- **Mechanism of formation:** A combination of unexpectedness (surprise) and personal consequentiality triggers a biological mechanism (likened to a 'Now Print' camera shutter) that preserves the moment of reception.
- **Mechanism of maintenance:** Overt (talking to others) and covert (thinking about it) rehearsal reinforce the memory trace.

#### 3. Empirical Support for FBM
- **Brown & Kulik (1977):**
- *Aims:* To investigate whether shocking events lead to flashbulb memories.
- *Method:* Questionnaire completed by 80 American participants (40 White, 40 Black) regarding 10 events (mostly assassinations like JFK, and one personal shock).
- *Results:* Participants recalled highly specific details (place, ongoing activity, informant, own affect). Black participants had more FBMs for civil rights leaders (MLK) than White participants, demonstrating the role of personal consequentiality.
- *Link:* Supports the idea that emotional relevance and surprise create distinct, highly detailed memories.
- **Sharot et al. (2007):**
- *Aims:* To find neural evidence for Flashbulb Memories of the 9/11 attacks.
- *Method:* fMRI scan 3 years after the event. Participants who were close to the World Trade Center (Downtown) vs. further away (Midtown) recalled 9/11 and control summer vacation memories.
- *Results:* Downtown participants showed selective activation of the amygdala when recalling 9/11 compared to control memories. This biological activation correlates with the subjective vividness of emotional memories.
- *Link:* Provides biological validation for a distinct emotional processing pathway (amygdala) modulating memory encoding (hippocampus).

#### 4. Critical Counter-Evidence & Limitations of FBM
- **Neisser & Harsch (1992):**
- *Aims:* To test the accuracy of FBMs over time.
- *Method:* Questionnaire administered to students 24 hours after the Challenger Space Shuttle disaster, and again 2.5 years later.
- *Results:* Despite participants expressing extremely high confidence in their memories (average confidence of 4.17 out of 5), their actual accuracy was very low (average score of 2.95 out of 7). 25% of participants got every single detail wrong.
- *Link:* Demonstrates that emotion creates a false sense of accuracy (high confidence) while the memory remains reconstructive and susceptible to distortion.
- **Talarico & Rubin (2003):**
- *Method:* Compared memories of 9/11 with everyday autobiographical memories over several intervals up to 32 weeks.
- *Results:* Detail decay rate was identical for both 9/11 and everyday memories, but belief in accuracy and vividness remained significantly higher for 9/11 memories.

#### 5. Evaluation / Synthesis
- **Methodological Issues:** Most FBM studies rely on retrospective self-report data, making it difficult to verify the initial accuracy of the memory. Natural experiments lack control over rehearsal variables.
- **Biological vs. Cognitive explanation:** While the amygdala's role in encoding emotional events is clear (enhancing subjective salience), subsequent cognitive processes (reconstructive schemas and social rehearsal) can distort the actual factual details over time.
- **Evolutionary Argument:** It is adaptive to remember highly emotional/dangerous situations clearly to avoid threats in the future, justifying why the brain evolved a mechanism to prioritize these memories, even if minor details decay.

#### 6. Conclusion
- Conclude that emotion acts as a powerful modulator of memory, profoundly elevating subjective vividness, confidence, and neural activation. However, emotional memories are not exempt from the reconstructive nature of memory and are subject to the same decay and distortion over time as neutral memories.

Marking scheme

### Marking Rubric for Essay Question (22 Marks total)

#### **Criterion A: Focus on the question (2 marks)**
- **2 marks**: The essay maintains a sharp and consistent focus on the influence of emotion on a cognitive process (memory).
- **1 mark**: The response is relevant to the topic but lacks precise focus on how emotion directly influences the cognitive process.

#### **Criterion B: Knowledge and understanding (6 marks)**
- **5-6 marks**: Demonstrates comprehensive, accurate, and detailed knowledge of FBM theory and its cognitive/biological assumptions. Key terminology (consequentiality, covert rehearsal, reconstructive memory) is used precisely.
- **3-4 marks**: Good knowledge is shown, but there may be minor inaccuracies or some key elements of the theory are described superficially.
- **1-2 marks**: Fragmented or highly limited knowledge of the theory or cognitive process.

#### **Criterion C: Use of research to support knowledge (6 marks)**
- **5-6 marks**: At least two key studies (e.g., Brown & Kulik, Neisser & Harsch, or Sharot et al.) are described in terms of aim, method, results, and conclusions, and are explicitly connected to the essay's arguments.
- **3-4 marks**: Studies are described, but with missing details (e.g., sample, specific numbers, or exact findings) or the connection to the prompt is weak.
- **1-2 marks**: Research is either absent, highly inaccurate, or irrelevant.

#### **Criterion D: Critical thinking (6 marks)**
- **5-6 marks**: Evaluates the theory and studies deeply. Balances the debate of 'vividness vs. accuracy', addresses methodological issues (e.g., lack of baseline control, self-reporting), and synthesizes biological and cognitive factors.
- **3-4 marks**: Some evaluation is present (e.g., mentioning that Neisser and Harsch disproved accuracy), but it is simplistic or lacks analytical depth.
- **1-2 marks**: The essay is purely descriptive with no evidence of critical evaluation.

#### **Criterion E: Clarity and organization (2 marks)**
- **2 marks**: The essay is structured logically with an introduction, clear paragraphs following a PEEL structure, and a coherent conclusion.
- **1 mark**: There is some attempt at structure, but ideas are disorganized or repetitive.

Paper 2 Option Section

Answer one essay question from the option studied (Abnormal, Developmental, Health, or Human Relationships).
1 Question · 22 marks
Question 1 · ERQ
22 marks
Discuss clinical biases in the diagnosis of psychological disorders.
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Worked solution

Exemplar Essay Structure

Introduction:
- Define clinical bias: A systematic distortion in the diagnostic process occurring when clinicians are influenced by factors unrelated to the diagnostic criteria, such as the patient's race, gender, socioeconomic status, or the clinician's own expectations.
- State the thesis: Clinical biases present significant challenges to the validity and reliability of diagnosis, often leading to systematic over- or under-diagnosis of certain demographic groups. To understand these biases, psychologists examine cultural stereotyping, gender expectations, and confirmation bias.
- Outline the essay: The discussion will cover gender bias (Loring and Powell, 1988), cultural bias (Li-Repac, 1980), and confirmation/prestige bias (Temerlin, 1968), followed by an evaluation of how diagnostic systems have attempted to mitigate these issues.

Body Paragraph 1: Gender Bias in Diagnosis:
- Conceptual explanation: Clinicians may hold gender-role stereotypes that influence how they interpret symptoms (e.g., interpreting distress as depression in women but as substance abuse or antisocial behavior in men).
- Empirical support: Loring and Powell (1988). They asked 290 psychiatrists to diagnose two videotaped/written clinical vignettes. When the patient was described as male or no gender was given, clinicians diagnoses were relatively consistent. However, when the patient was described as a Black male, they were significantly more likely to diagnose schizophrenia compared to when the patient was described as a White female, even with identical clinical descriptions. This demonstrates how gender and racial stereotypes interact to bias clinical judgment.
- Evaluation: High controlled environment, but analogue design may lack ecological validity compared to actual clinical encounters.

Body Paragraph 2: Cultural Bias in Diagnosis:
- Conceptual explanation: Pathological behaviors in one culture may be normative in another. Clinicians from dominant cultures may misinterpret the behavior of minority clients due to lack of cultural competence.
- Empirical support: Li-Repac (1980). Compared White and Chinese-American clinicians rating Chinese-American and White psychiatric patients. White clinicians tended to perceive Chinese-American patients as more depressed, tense, and lower in self-esteem than did Chinese-American clinicians. Conversely, Chinese-American clinicians rated White patients as more aggressive and active. This suggests that the cultural background of both client and clinician interacts to distort clinical perception.
- Evaluation: Illustrates the concept of 'cultural blindness' and the necessity of cultural formulation frameworks.

Body Paragraph 3: Confirmation and Prestige Bias:
- Conceptual explanation: Clinicians are prone to cognitive heuristics, such as confirmation bias (the tendency to search for, interpret, and recall information in a way that confirms one's preexisting beliefs or labels). Prestige bias occurs when a clinician's judgment is influenced by the opinion of a high-status colleague.
- Empirical support: Temerlin (1968). Clinical psychologists and psychiatrists watched a videotape of an actor portraying a mentally healthy man. Before watching, some heard a respected professional mention that the man 'looked neurotic but was actually quite psychotic.' A high percentage of clinicians subsequently diagnosed the healthy man with a mental illness, whereas none of the control group did. This shows how prior information and professional prestige can bias clinical objectivity.
- Evaluation: Strong laboratory control, but raises ethical concerns regarding deception and has low ecological validity as real diagnoses are rarely made solely on a brief video tape observation without interactive assessment.

Discussion & Critical Thinking:
- Implications of biases: Leads to labeling, self-fulfilling prophecies, stigmatization, and inappropriate treatment plans (e.g., overprescribing antipsychotics to minority groups).
- Methodological considerations: Many studies on clinical bias use analogue designs (written vignettes or recorded videos) which may overstate bias because real-world diagnostic processes involve prolonged interaction, standardized testing, and multi-disciplinary teams.
- Addressing the bias: Discuss how modern classification systems (DSM-5, ICD-11) have introduced standardized diagnostic criteria (such as the Cultural Formulation Interview in DSM-5) and structured clinical interviews (SCID) to improve objectivity and decrease subjective clinician bias.

Conclusion:
- Restate thesis: Clinical biases stemming from demographic stereotypes and cognitive heuristics significantly threaten diagnostic validity and reliability.
- Summarize key findings: Gender, race, and preexisting labels can sway professional judgment, as shown in classic studies.
- Final thought: While complete objectivity is difficult to achieve, ongoing training in cultural competence and the systematic use of structured clinical tools remain vital in protecting patients from the negative consequences of biased diagnoses.

Marking scheme

IB Diploma Programme Assessment Criteria for ERQs (22 Marks)

Criterion A: Focus on the question (2 marks)
- 2 marks: The response is focused on the question throughout, clearly identifying and discussing clinical biases in diagnosis.
- 1 mark: The response identifies clinical biases but is descriptive or lacks sustained focus on the diagnostic aspect.

Criterion B: Knowledge and understanding (6 marks)
- 5-6 marks: Detailed, accurate, and highly relevant knowledge and understanding of clinical biases (e.g., gender, cultural, cognitive biases) and diagnostic validity/reliability are demonstrated.
- 3-4 marks: Some relevant knowledge and understanding are demonstrated, but there may be minor inaccuracies or lack of depth.
- 1-2 marks: Minimal knowledge and understanding of diagnostic bias are shown.

Criterion C: Use of research to support answer (6 marks)
- 5-6 marks: Relevant psychological research (e.g., Loring & Powell, Li-Repac, Temerlin) is used effectively and described with high accuracy to support the argument.
- 3-4 marks: Research is used, but there are omissions in detail, or the connection to clinical bias is not fully developed.
- 1-2 marks: Minimal or highly inaccurate use of research.

Criterion D: Critical thinking (6 marks)
- 5-6 marks: Critical evaluation of research designs (e.g., analogue studies vs. clinical reality), discussion of alternative explanations, and evaluation of ways to reduce bias (e.g., structured interviews, CFI) are highly developed and sophisticated.
- 3-4 marks: Some evaluation is present but is superficial or limited to generic critiques of studies.
- 1-2 marks: Very limited or no critical evaluation.

Criterion E: Clarity and organization (2 marks)
- 2 marks: The essay is well-structured, coherent, and uses professional psychological terminology appropriately.
- 1 mark: The essay has some structure but lacks clear flow or transition between paragraphs.

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