2025 IB DP Psychology 模擬試題連答案詳解

Neuroplasticity refers to the brain's dynamic capacity to reorganize its neural pathways and connections as a result of experience, learning, or injury. Throughout our lives, the brain continuously undergoes structural changes, such as dendritic branching (the growth of new dendritic connections) and neural pruning (the elimination of unused synaptic connections). A key study demonstrating neuroplasticity is Draganski et al. (2004). The researchers wanted to see if learning a new physical skill (juggling) would lead to structural changes in the human brain. They recruited a sample of non-jugglers and divided them into two groups: jugglers and non-jugglers. The jugglers practiced a three-ball cascade routine for three months. MRI scans were taken before the practice, immediately after three months of practice, and three months after they stopped juggling. The structural MRI scans revealed that after three months of learning to juggle, the jugglers had a significantly larger amount of grey matter in the mid-temporal area of the cortex in both hemispheres, an area associated with the coordination of visual motion. However, by the third scan (three months after stopping practice), the amount of grey matter had decreased, indicating that the neural pathways had pruned due to lack of use. This research demonstrates neuroplasticity by showing that the human brain can structurally change and reorganize in response to environmental demands (learning) and reverse these changes when the demand is removed (pruning).

Marks are awarded based on the IB Psychology SAQ rubric (9 marks maximum). 1 to 3 marks: The response shows limited understanding of neuroplasticity or merely describes a study without explaining the concept. 4 to 6 marks: The response explains neuroplasticity and describes a relevant study, but the link between the study and the concept of neuroplasticity is weak or contains inaccuracies. 7 to 9 marks: The response provides a clear, accurate explanation of neuroplasticity, a well-detailed description of a relevant study (such as Draganski et al., 2004), and explicitly explains how the study demonstrates neuroplasticity. Scientific terminology is used accurately throughout.

Schema theory is a cognitive theory that suggests our mind organizes information, experiences, and knowledge into active, constructive mental frameworks known as schemas. These schemas help us simplify, predict, and interpret the world around us. During encoding and retrieval, schemas guide how we select, organize, and reconstruct information, sometimes leading to systematic memory distortions. A classic study demonstrating schema theory is Brewer and Treyens (1981), often called the 'office schema' study. The aim was to investigate whether participants' memory for objects in a room is influenced by their existing office schema. Participants were left in an office-like room for 35 seconds and were then asked to write down everything they could remember. The results showed that participants were highly likely to recall objects that were typical of an office (schema-consistent items like a desk, calendar, and chair). Strikingly, many participants falsely recalled schema-consistent items that were not actually in the room (such as books or a telephone). They also failed to notice or recall highly unusual, schema-inconsistent items (such as a skull or a toy top). This study demonstrates schema theory because it shows that human memory is not a passive recording device; rather, it is a reconstructive process heavily guided by active mental schemas that determine what we encode and how we fill in memory gaps.

Marks are awarded based on the IB Psychology SAQ rubric (9 marks maximum). 1 to 3 marks: The response offers a superficial description of schemas with little to no theoretical detail or study description. 4 to 6 marks: The response explains schema theory and describes a study, but the connection between the findings of the study and the theoretical assumptions of schema theory is underdeveloped. 7 to 9 marks: The response clearly and accurately explains schema theory (e.g., encoding, retrieval, cognitive shortcuts), describes a relevant study (such as Brewer and Treyens, 1981) in detail, and makes an explicit connection explaining how the study's findings support the theory.

Social Identity Theory (SIT), proposed by Henri Tajfel and John Turner, posits that a person's sense of who they are is based on their group membership(s). The theory is structured around four main mechanisms: social categorization (dividing the social environment into 'us' and 'them'), social identification (adopting the identity of the group we have categorized ourselves as belonging to), social comparison (comparing our group with other groups), and positive distinctiveness (the motivation to show that our in-group is preferable to an out-group to boost self-esteem). A fundamental study supporting this theory is Tajfel et al. (1971), which investigated the minimal group paradigm. British schoolboys were randomly assigned to groups based on superficial preferences (such as artistic preference for paintings by Klee or Kandinsky) but were led to believe the grouping was meaningful. The boys were then asked to distribute virtual money/points to other participants using matrices. The researchers found that the boys consistently favored members of their own in-group (in-group favoritism) and, most importantly, chose allocation strategies that maximized the difference in points between the groups (positive distinctiveness), even if it meant their own group received fewer total points. This study supports Social Identity Theory by demonstrating that the mere act of categorizing individuals into arbitrary groups is sufficient to trigger in-group bias and a desire to establish superiority over the out-group.

Marks are awarded based on the IB Psychology SAQ rubric (9 marks maximum). 1 to 3 marks: The response shows basic or limited understanding of Social Identity Theory or describes a study without explaining the theory. 4 to 6 marks: The response explains the main tenets of Social Identity Theory and describes a relevant study, but the connection between the study and the theory's components (e.g., social comparison, positive distinctiveness) is not fully articulated. 7 to 9 marks: The response provides a detailed and accurate explanation of the key concepts of Social Identity Theory, describes a relevant study (such as Tajfel et al., 1971) with clarity, and successfully integrates the study to explain how it demonstrates the theory in action.

### Introduction
* **Define the terms**: Define the cognitive process chosen (e.g., memory, specifically autobiographical memory) and the emotional variable (e.g., highly intense emotional arousal/events).
* **Introduce the central theory**: Introduce the Flashbulb Memory (FBM) theory proposed by Brown and Kulik (1977). Define FBM as a highly vivid, exceptionally detailed 'snapshot' of the moment one learned of a highly surprising and emotionally arousing event.
* **Thesis statement**: While early research suggested that intense emotional states trigger a specialized neural mechanism that preserves memories with photographic accuracy, subsequent cognitive research indicates that emotion primarily enhances our *confidence* and the *vividness* of memories rather than their objective *accuracy* over time.

### Theoretical Background
* **Flashbulb Memory Theory (Brown & Kulik, 1977)**:
* Proposes a dual-mechanism model: a physiological 'now print' mechanism (mediated by high emotional arousal and amygdala activation) and a cognitive rehearsal mechanism (both overt rehearsal like talking, and covert rehearsal like thinking about the event).
* Key characteristics of FBM: place of event, ongoing activity, informant, own affect, other affect, and aftermath.

### Supporting Evidence: Brown & Kulik (1977)
* **Aim**: To investigate whether shocking events can create flashbulb memories.
* **Procedure**: Questionnaire administered to 80 US participants (40 Caucasian, 40 African American). They were asked to recall circumstances of 10 events, including the assassinations of JFK, MLK Jr., and a personal shock.
* **Results**: High recall detail for JFK's assassination (90% of participants). African American participants had more vivid, detailed memories of MLK Jr.'s assassination than Caucasian participants, showing the role of personal consequentiality.
* **Evaluation**: Supported the idea that emotional significance and personal relevance create highly detailed memories. However, the study relied on retrospective self-report, and actual accuracy could not be verified.

### Challenging Evidence: Neisser & Harsch (1992)
* **Aim**: To test the accuracy and stability of flashbulb memories over time.
* **Procedure**: Investigated memory of the Challenger Space Shuttle disaster (1986). Participants (106 college students) filled out a questionnaire 24 hours after the disaster, and 44 of them completed the same questionnaire 2.5 years later.
* **Results**: There were major discrepancies between the first and second accounts (mean accuracy score was only 2.95 out of 7). However, participants' confidence in their incorrect memories remained extremely high (mean confidence 4.17 out of 5).
* **Evaluation**: Demonstrates that high emotional arousal does not guarantee memory accuracy. Suggests emotional memories are reconstructed over time and subject to post-event information, challenging the 'now print' mechanism.

### Alternative/Synthesis Study: Sharot et al. (2007)
* **Aim**: To investigate the neural basis of flashbulb memories (linking biological and cognitive factors).
* **Procedure**: fMRI scan of 24 participants who were in New York City during the 9/11 attacks, three years after the event. They were presented with cue words on a screen linked to 9/11 or personal summer holidays.
* **Results**: Participants closer to the World Trade Center showed selective activation of the amygdala when recalling 9/11 compared to summer events. This biological finding supports the idea that unique neural pathways are engaged during personally consequential, emotionally intense events.

### Critical Discussion & Evaluation
* **Methodological issues**: Research into FBM often relies on natural disasters or national tragedies, which lack pre-event baseline controls. Laboratory experiments on emotion and memory (e.g., using unpleasant images) may lack ecological validity.
* **The role of rehearsal**: Is it the initial emotional shock (physiological) or the constant media repetition and social sharing (cognitive rehearsal) that maintains the memory? Neisser suggests that rehearsal plays a dominant role in memory reconstruction.
* **Evolutionary explanation**: Having highly vivid memories of emotionally intense (especially dangerous) situations would be adaptive for survival, facilitating future avoidance of threats.

### Conclusion
* Summarize that emotion significantly alters how memories are encoded and retrieved.
* Conclude that while emotion does not act like a perfect camera (as Brown and Kulik originally hypothesized), it does enhance the subjective vividness and personal confidence in the memory, largely due to amygdala involvement during encoding and subsequent frequent rehearsal.

### Criterion A: Focus on the question (2 marks)
* **2 marks**: The response is fully focused on the question, clearly identifying memory as the cognitive process and explaining the theoretical link to emotion (specifically through Flashbulb Memory theory).
* **1 mark**: The response identifies a cognitive process and emotion but the link is vague or poorly defined.

### Criterion B: Knowledge and understanding (6 marks)
* **5-6 marks**: The response demonstrates detailed, accurate, and comprehensive knowledge of Flashbulb Memory theory, explaining both the cognitive (rehearsal) and physiological (amygdala) components proposed by researchers.
* **3-4 marks**: The response shows some accurate knowledge of the theory but lacks depth or contains minor inaccuracies regarding mechanisms.
* **1-2 marks**: The response shows minimal knowledge, with superficial descriptions of how emotion affects cognitive processes.

### Criterion C: Use of research to support of answers (6 marks)
* **5-6 marks**: Relevant empirical studies (e.g., Brown and Kulik, Neisser and Harsch, Sharot et al.) are accurately described with clear details of aim, procedure, and findings, and are explicitly linked back to the influence of emotion on memory.
* **3-4 marks**: Studies are described but lack key details or the connection to the essay prompt is weak.
* **1-2 marks**: Studies are mentioned but are highly descriptive, inaccurate, or irrelevant to the prompt.

### Criterion D: Critical thinking (6 marks)
* **5-6 marks**: The response displays excellent critical evaluation. It contrasts supporting and challenging studies, analyzes methodological limitations (such as self-report bias, retrospective design, lack of controlled baselines), and discusses the distinction between memory accuracy and memory confidence.
* **3-4 marks**: Critical evaluation is present but limited, perhaps focusing only on general evaluation of the studies rather than a synthesized critique of the theory itself.
* **1-2 marks**: Evaluation is superficial, relying on generic statements like 'the study lacks ecological validity' without further explanation.

### Criterion E: Clarity and organisation (2 marks)
* **2 marks**: The essay is well-structured, uses appropriate psychological terminology consistently, and follows a logical sequence from theory to evidence, evaluation, and conclusion.
* **1 mark**: The essay has some structure but lacks cohesive flow, or terminology is used inconsistently.

### Introduction
- Define the core concepts: communication (the verbal and non-verbal exchange of information, feelings, and thoughts) and relationship maintenance (efforts to keep a relationship in a specified, healthy state).
- Thesis statement: Communication is a crucial element in maintaining relationships, serving as a vehicle for emotional intimacy (self-disclosure) and conflict resolution. However, communication patterns are bidirectional, complex, and influenced by cognitive and cultural variables.

### Body Paragraph 1: The Role of Self-Disclosure (Social Penetration Theory)
- **Theory**: Social Penetration Theory (Altman & Taylor, 1973) proposes that relationships develop and are maintained through gradual deepening of self-disclosure (from superficial 'breadth' to intimate 'depth').
- **Supporting Study**: Collins and Miller (1994) conducted a meta-analysis on self-disclosure and liking. They found that people who engage in intimate disclosures are more liked than those who disclose at lower levels, and people disclose more to those whom they initially like. This highlights self-disclosure as a positive feedback loop essential for maintaining relationship quality.
- **Evaluation**: Self-disclosure can be risky, and over-disclosure too early can deter relationship formation. Cultural variations exist; individualistic cultures tend to emphasize personal self-disclosure more than collectivistic cultures (e.g., Ting-Toomey, 1991).

### Body Paragraph 2: Negative Communication Patterns (Gottman's Four Horsemen)
- **Theory**: John Gottman's Cascade Model identifies specific negative communication styles that predict relationship dissolution: Criticism, Contempt, Defensiveness, and Stonewalling (the \"Four Horsemen\").
- **Supporting Study**: Gottman and Levenson (1992) conducted longitudinal research observing married couples resolving conflicts in a laboratory setting. They measured physiological responses (heart rate, skin conductance) and coded verbal/non-verbal communication. They found that couples displaying high levels of the Four Horsemen, especially contempt, were significantly more likely to divorce.
- **Evaluation**: The research uses high-precision observational and physiological data (high construct validity). However, laboratory observation may lack ecological validity, and the sample was primarily US-based, potentially limiting generalizability.

### Body Paragraph 3: Cognitive Aspects of Communication (Attribution Style)
- **Theory**: How couples communicate is deeply tied to how they cognitively attribute each other's behavior (Bradbury & Fincham, 1990). Happy couples use 'relationship-enhancing' attributions (attributing positive acts to internal causes and negative acts to external/situational causes). Distress-maintaining communication attributes negative acts to internal, stable causes.
- **Supporting Study**: Bradbury and Fincham (1990) tracked couples over time and found that attributional styles predicted the quality of communication and overall marital satisfaction over time.
- **Evaluation**: This demonstrates that communication is not just mechanical but heavily influenced by cognitive schemas. It provides a bidirectional perspective: cognitive attributions drive communication, which in turn maintains or degrades the relationship.

### Conclusion
- Synthesize main points: Communication is both a tool for fostering closeness (via self-disclosure) and a predictor of relationship health or decay (via conflict resolution styles and attributions).
- Emphasize critical limits: Most research is correlational, meaning it is difficult to isolate whether poor communication causes relationship dissatisfaction or if relationship dissatisfaction causes poor communication. Cultural and gender factors must also be considered when designing interventions like couples' therapy.

### IB DP Psychology ERQ Rubric (22 Marks) Breakdown:

* **Criterion A: Focus on the question (2 marks)**
- **2 marks**: The response is fully focused on the role of communication in relationship maintenance throughout. Key terms are defined clearly.
- **1 mark**: The response is somewhat focused, but deviates into irrelevant details (e.g., focusing solely on why relationships end without linking it back to the active process of maintenance/communication).

* **Criterion B: Knowledge and understanding (6 marks)**
- **5-6 marks**: Deep, accurate knowledge of theories (Social Penetration Theory, Gottman's Cascade Model, Attribution Theory) and concepts of communication. Specialist vocabulary is used effectively.
- **3-4 marks**: Good knowledge is demonstrated, but there are minor inaccuracies or omissions in the explanation of the theories.
- **1-2 marks**: Limited or superficial understanding of communication theories/models.

* **Criterion C: Use of research (6 marks)**
- **5-6 marks**: Relevant empirical studies (such as Collins & Miller, Gottman & Levenson, Bradbury & Fincham) are described accurately, with clear links showing how they support the essay's arguments.
- **3-4 marks**: Studies are described but lack complete accuracy, or the connection to the essay prompt (maintenance of relationships) is weak.
- **1-2 marks**: Very limited or highly inaccurate description of research; studies are merely mentioned without context.

* **Criterion D: Critical thinking (6 marks)**
- **5-6 marks**: Evaluates theories and studies deeply. Considers methodological limitations (correlational designs, self-report bias, artificiality of lab observations), cultural factors (collectivistic vs. individualistic views on communication), and bidirectional ambiguity (the 'chicken-and-egg' problem of communication and relationship health).
- **3-4 marks**: Some critical thinking is present but lacks depth or is unbalanced (e.g., only evaluating one study or focusing exclusively on gender differences without methodological critiques).
- **1-2 marks**: Minimal or no critical evaluation present.

* **Criterion E: Clarity and organisation (2 marks)**
- **2 marks**: The essay is well-structured, follows a logical progression, and has an effective introduction and conclusion.
- **1 mark**: Some structure is present, but it lacks cohesive flow or transitions between paragraphs are weak.