2025 IB DP Psychology 模擬試題連答案詳解

Neuroplasticity refers to the brain's ability to reorganize its structure and function in response to environmental demands, learning, or experience. This process occurs through two main mechanisms: dendritic branching, where new neural connections are formed, and synaptic pruning, where unused connections are eliminated. Neuroplasticity can be observed on a structural level when specific parts of the brain change in volume or density after prolonged training or exposure to a task. This phenomenon was demonstrated in a study by Draganski et al. (2004). The researchers investigated whether learning a new skill (juggling) would lead to structural changes in the brains of participants. Using a sample of 24 non-jugglers, participants were split into two groups: jugglers and non-jugglers. The jugglers were taught a three-ball cascade routine and asked to practice until they mastered it. MRI scans were conducted at three points: before learning to juggle, after mastering the skill, and three months after they stopped juggling. The MRI results showed that after mastering the skill, the jugglers had a significant increase in grey matter volume in the mid-temporal area of both hemispheres, an area associated with visual memory and motion perception. After three months of not practicing, this grey matter decreased again, though it remained higher than the baseline. The control group of non-jugglers showed no changes over the same period. This study clearly demonstrates neuroplasticity. The increase in grey matter volume in response to learning to juggle shows that environmental demands can cause structural changes in the brain (dendritic branching). Conversely, the subsequent decrease in grey matter when practice stopped demonstrates synaptic pruning, highlighting the brain's dynamic and adaptable nature.

Marks are awarded based on the following criteria: 1 to 3 marks: The response shows limited understanding of neuroplasticity and/or a relevant study. The connection between the study and the concept is weak or missing. 4 to 6 marks: The response demonstrates a basic understanding of neuroplasticity and describes a relevant study. However, the explanation of how the study relates to neuroplasticity is incomplete or lacks clarity. 7 to 9 marks: The response shows accurate, detailed knowledge of neuroplasticity. A relevant study (such as Draganski et al., 2004) is accurately described with clear details regarding methodology and results. The explanation of how the study demonstrates neuroplasticity is highly focused, explicit, and accurate.

Schema theory is a cognitive theory that suggests our memory and knowledge are organized into mental frameworks called schemas. Schemas are active, structured representations of past experiences, objects, or situations that help us process new information quickly, predict outcomes, and guide our behaviour. However, schemas can also lead to cognitive distortions, as we tend to reconstruct memories to fit our pre-existing schemas. A classic study demonstrating this is Brewer and Treyens (1981). The study investigated the role of schemas in the encoding and retrieval of episodic memory. Eighty-six university students were seated in an office-like room for 35 seconds. The room contained schema-consistent items (like a desk, typewriter, calendar) and schema-inconsistent items (like a skull or a toy top). It also lacked some highly expected items, such as books. Participants were then moved to another room and asked to recall the objects they had seen using one of three recall methods: written recall, drawing, or recognition. The researchers found that when participants were asked to write down or draw what they saw, they were highly likely to recall schema-consistent items, including items that were not actually in the room, such as books. Furthermore, schema-inconsistent items like the skull were also recalled, as they stood out and were deeply processed, but overall, reconstruction of the room was heavily influenced by the participants' pre-existing office schema. This study supports schema theory by demonstrating how schemas influence the retrieval of memory. Rather than acting like a camera, memory is a reconstructive process. Participants used their existing office schema to fill in missing details, leading to the false recall of expected but absent objects. This demonstrates that schemas actively organize and reconstruct cognitive representations of our environment.

Marks are awarded based on the following criteria: 1 to 3 marks: The response shows superficial understanding of schema theory or the selected study. Descriptions are vague or contain significant inaccuracies. 4 to 6 marks: The response demonstrates accurate knowledge of schema theory and outlines a relevant study. The connection between the theory and the findings is present but could be more clearly articulated. 7 to 9 marks: The response provides a thorough explanation of schema theory (including encoding and retrieval effects). A relevant study (such as Brewer and Treyens) is described accurately, and the link explaining how the study's findings demonstrate schema theory is explicit, well-developed, and logically structured.

Social Cognitive Theory (SCT), proposed by Albert Bandura, suggests that behaviour is acquired through the observation of models in a social environment. Unlike simple behaviorism, SCT emphasizes cognitive processes that occur between stimulus and response. The four primary cognitive components of observational learning are: attention (noticing the behaviour), retention (remembering the behaviour), reproduction (having the physical and cognitive ability to perform the behaviour), and motivation (having a reason to perform it, often influenced by vicarious reinforcement or punishment). A foundational study investigating SCT is Bandura, Ross, and Ross (1961). The researchers aimed to see if children would imitate aggressive behaviour modeled by an adult. They used a sample of 72 young children (36 boys and 36 girls) divided into three groups: one exposed to aggressive adult models (who beat up an inflatable Bobo Doll), one exposed to non-aggressive adult models, and a control group with no model. The children were later placed in a room filled with toys, including a Bobo Doll, and their behavior was observed through a one-way mirror. The results showed that children who observed the aggressive models exhibited significantly more physical and verbal aggression toward the Bobo Doll than those in the non-aggressive or control groups. Additionally, boys were more likely to imitate physical aggression, especially from same-sex models, while girls showed a mix of verbal and physical aggression. This study directly supports Social Cognitive Theory by illustrating observational learning. The children did not need direct reward or reinforcement to learn the aggressive behavior; they acquired it simply by paying attention to and retaining the actions of the adult model, and then reproducing those actions when motivated by the presence of the Bobo doll. This confirms that human behaviour can be acquired through social modeling and cognitive mediation.

Marks are awarded based on the following criteria: 1 to 3 marks: The response shows limited knowledge of Social Cognitive Theory and/or the supporting study. The link between theory and research is weak or absent. 4 to 6 marks: The response accurately describes the core aspects of Social Cognitive Theory and a relevant study. However, the explanation of how the study supports or illustrates SCT lacks detail or clarity. 7 to 9 marks: The response demonstrates excellent understanding of Social Cognitive Theory (including observational learning and cognitive mediators). A relevant study (such as Bandura et al., 1961) is detailed accurately. The final explanation clearly and logically links the study's findings back to the core principles of SCT.

Introduction
- Define the chosen cognitive process: Memory, specifically autobiographical memory of highly emotional events, often conceptualized as Flashbulb Memory (FBM).
- Define the emotional component: High physiological arousal, surprise, and personal consequentiality associated with shocking or significant events.
- State the thesis: While early theories suggested that high emotion creates highly accurate, photographic-like memories, modern research demonstrates that emotion primarily enhances the subjective vividness, confidence, and longevity of the memory, rather than its absolute objective accuracy.

Description of Theory: Flashbulb Memory (Brown and Kulik, 1977)
- FBM is a highly detailed, exceptionally vivid snapshot of the moment and circumstances in which a piece of surprising and consequential (emotionally arousing) news was heard.
- Two core mechanisms are proposed: (1) A physiological mechanism where high levels of surprise and consequentiality trigger a unique neural system (now associated with the amygdala) that 'prints' the details into memory; (2) A psychological mechanism involving overt rehearsal (talking to others) and covert rehearsal (replaying the event in one's mind) that maintains the memory over time.

Supporting Empirical Evidence 1: Brown and Kulik (1977)
- Aim: To investigate whether shocking events can construct highly accurate and vivid flashbulb memories.
- Method: 80 American participants (40 white, 40 black) completed a questionnaire about their memories of the assassinations of public figures (such as JFK and Martin Luther King Jr.) and one personal, highly emotional shock.
- Results: Participants had extremely vivid memories of where they were, what they were doing, and how they felt when they heard the news. There was a strong correlation between personal consequentiality and the vividness of the memory (e.g., Black participants had more vivid memories of MLK's assassination than White participants).
- Conclusion: High emotion and personal significance lead to the formation of vivid, long-lasting memories (FBMs), supporting the proposed theory.

Challenging/Refining Empirical Evidence 2: Talarico and Rubin (2003)
- Aim: To test the accuracy and consistency of Flashbulb Memories compared to everyday memories.
- Method: On September 12, 2001 (the day after the 9/11 attacks), researchers tested 54 university students' memories of hearing about the attack and a recent everyday event. Participants were re-tested after 7, 42, or 224 days.
- Results: The actual number of consistent details decreased over time at the same rate for both emotional (9/11) and everyday memories. However, participants' belief in the accuracy of their 9/11 memories and their rating of memory vividness remained extremely high, whereas their confidence in everyday memories dropped significantly over time.
- Conclusion: Emotion does not prevent memory decay or guarantee objective accuracy; instead, it dramatically increases the subjective confidence and perceived vividness of the memory.

Biological Support: Sharot et al. (2007)
- Aim: To investigate the neural mechanisms underlying flashbulb memories.
- Method: An fMRI study conducted three years after the 9/11 attacks. Participants who were in New York City on 9/11 were asked to retrieve memories of that day as well as other personal events from that year while their brain activity was monitored.
- Results: Participants closer to the World Trade Center showed selective activation of the amygdala (the brain structure associated with emotional processing) when retrieving 9/11 memories, compared to everyday memories. Those further away did not show this selective activation.
- Conclusion: This provides biological evidence that highly emotional, personally consequential experiences engage distinct neural pathways (specifically the amygdala), which explains why these memories feel so vivid and intense.

Critical Evaluation and Discussion
- Methodological limitations: Many FBM studies rely on retrospective self-reports, which cannot fully verify the actual details of the event. To address this, prospective longitudinal designs (like Neisser and Harsch, or Talarico and Rubin) are essential.
- Cultural factors: Individualistic cultures may place greater emphasis on personal experiences and emotional sharing, leading to more rehearsal and stronger FBMs compared to collectivistic cultures (e.g., Kulkofsky et al., 2011).
- Practical applications: Understanding the fallibility of emotional memories has profound implications for eyewitness testimony, where high-stress situations often lead to confident but inaccurate claims.
- Conclusion: In summary, emotion has a profound impact on memory. Rather than acting as a perfect recording device, emotion acts as a subjective enhancer: it drives selective attention and neurological activation via the amygdala, resulting in memories that are uniquely vivid and held with high confidence, even as the actual details fade over time.

Criterion A: Focus on the question (2 marks)
- 2 marks: The response is fully focused on the question, clearly identifying one cognitive process (memory) and the influence of emotion (flashbulb memory theory) with an evaluative tone.
- 1 mark: The response is partially focused, or identifies a cognitive process but does not clearly link it to emotion throughout.

Criterion B: Knowledge and comprehension (6 marks)
- 5-6 marks: Detailed, accurate, and highly relevant knowledge of the influence of emotion on memory (specifically Flashbulb Memory Theory, mechanisms, and neural links like the amygdala) is demonstrated.
- 3-4 marks: Good knowledge of the theory is demonstrated, but there may be minor inaccuracies or a lack of depth regarding the theoretical mechanisms.
- 1-2 marks: Minimal or superficial knowledge is present, with significant errors.

Criterion C: Use of research to support answer (6 marks)
- 5-6 marks: Relevant case studies (e.g., Brown and Kulik, 1977; Talarico and Rubin, 2003; Sharot et al., 2007) are described in detail (aims, methods, findings, conclusions) and clearly used to support the argument.
- 3-4 marks: Studies are described but there is a lack of detail or the link to the essay prompt is weak.
- 1-2 marks: Studies are highly inaccurate or largely irrelevant.

Criterion D: Critical thinking (6 marks)
- 5-6 marks: Excellent critical evaluation is demonstrated. This includes discussing the strengths and limitations of the research methods, comparing conflicting findings (e.g., objective decay vs. subjective confidence), considering biological factors (amygdala), and examining cultural variations.
- 3-4 marks: Some critical thinking is present, but it is superficial or largely descriptive of limitations rather than analytical.
- 1-2 marks: Little to no critical evaluation is present.

Criterion E: Clarity and organization (2 marks)
- 2 marks: The essay is exceptionally well-structured, coherent, and uses precise psychological terminology throughout.
- 1 mark: The essay has some structure but lacks flow or clarity in places.

Introduction
- Define the chosen cognitive process: Memory, specifically autobiographical memory of highly emotional events, often conceptualized as Flashbulb Memory (FBM).
- Define the emotional component: High physiological arousal, surprise, and personal consequentiality associated with shocking or significant events.
- State the thesis: While early theories suggested that high emotion creates highly accurate, photographic-like memories, modern research demonstrates that emotion primarily enhances the subjective vividness, confidence, and longevity of the memory, rather than its absolute objective accuracy.

Description of Theory: Flashbulb Memory (Brown and Kulik, 1977)
- FBM is a highly detailed, exceptionally vivid snapshot of the moment and circumstances in which a piece of surprising and consequential (emotionally arousing) news was heard.
- Two core mechanisms are proposed: (1) A physiological mechanism where high levels of surprise and consequentiality trigger a unique neural system (now associated with the amygdala) that 'prints' the details into memory; (2) A psychological mechanism involving overt rehearsal (talking to others) and covert rehearsal (replaying the event in one's mind) that maintains the memory over time.

Supporting Empirical Evidence 1: Brown and Kulik (1977)
- Aim: To investigate whether shocking events can construct highly accurate and vivid flashbulb memories.
- Method: 80 American participants (40 white, 40 black) completed a questionnaire about their memories of the assassinations of public figures (such as JFK and Martin Luther King Jr.) and one personal, highly emotional shock.
- Results: Participants had extremely vivid memories of where they were, what they were doing, and how they felt when they heard the news. There was a strong correlation between personal consequentiality and the vividness of the memory (e.g., Black participants had more vivid memories of MLK's assassination than White participants).
- Conclusion: High emotion and personal significance lead to the formation of vivid, long-lasting memories (FBMs), supporting the proposed theory.

Challenging/Refining Empirical Evidence 2: Talarico and Rubin (2003)
- Aim: To test the accuracy and consistency of Flashbulb Memories compared to everyday memories.
- Method: On September 12, 2001 (the day after the 9/11 attacks), researchers tested 54 university students' memories of hearing about the attack and a recent everyday event. Participants were re-tested after 7, 42, or 224 days.
- Results: The actual number of consistent details decreased over time at the same rate for both emotional (9/11) and everyday memories. However, participants' belief in the accuracy of their 9/11 memories and their rating of memory vividness remained extremely high, whereas their confidence in everyday memories dropped significantly over time.
- Conclusion: Emotion does not prevent memory decay or guarantee objective accuracy; instead, it dramatically increases the subjective confidence and perceived vividness of the memory.

Biological Support: Sharot et al. (2007)
- Aim: To investigate the neural mechanisms underlying flashbulb memories.
- Method: An fMRI study conducted three years after the 9/11 attacks. Participants who were in New York City on 9/11 were asked to retrieve memories of that day as well as other personal events from that year while their brain activity was monitored.
- Results: Participants closer to the World Trade Center showed selective activation of the amygdala (the brain structure associated with emotional processing) when retrieving 9/11 memories, compared to everyday memories. Those further away did not show this selective activation.
- Conclusion: This provides biological evidence that highly emotional, personally consequential experiences engage distinct neural pathways (specifically the amygdala), which explains why these memories feel so vivid and intense.

Critical Evaluation and Discussion
- Methodological limitations: Many FBM studies rely on retrospective self-reports, which cannot fully verify the actual details of the event. To address this, prospective longitudinal designs (like Neisser and Harsch, or Talarico and Rubin) are essential.
- Cultural factors: Individualistic cultures may place greater emphasis on personal experiences and emotional sharing, leading to more rehearsal and stronger FBMs compared to collectivistic cultures (e.g., Kulkofsky et al., 2011).
- Practical applications: Understanding the fallibility of emotional memories has profound implications for eyewitness testimony, where high-stress situations often lead to confident but inaccurate claims.
- Conclusion: In summary, emotion has a profound impact on memory. Rather than acting as a perfect recording device, emotion acts as a subjective enhancer: it drives selective attention and neurological activation via the amygdala, resulting in memories that are uniquely vivid and held with high confidence, even as the actual details fade over time.

Criterion A: Focus on the question (2 marks)
- 2 marks: The response is fully focused on the question, clearly identifying one cognitive process (memory) and the influence of emotion (flashbulb memory theory) with an evaluative tone.
- 1 mark: The response is partially focused, or identifies a cognitive process but does not clearly link it to emotion throughout.

Criterion B: Knowledge and comprehension (6 marks)
- 5-6 marks: Detailed, accurate, and highly relevant knowledge of the influence of emotion on memory (specifically Flashbulb Memory Theory, mechanisms, and neural links like the amygdala) is demonstrated.
- 3-4 marks: Good knowledge of the theory is demonstrated, but there may be minor inaccuracies or a lack of depth regarding the theoretical mechanisms.
- 1-2 marks: Minimal or superficial knowledge is present, with significant errors.

Criterion C: Use of research to support answer (6 marks)
- 5-6 marks: Relevant case studies (e.g., Brown and Kulik, 1977; Talarico and Rubin, 2003; Sharot et al., 2007) are described in detail (aims, methods, findings, conclusions) and clearly used to support the argument.
- 3-4 marks: Studies are described but there is a lack of detail or the link to the essay prompt is weak.
- 1-2 marks: Studies are highly inaccurate or largely irrelevant.

Criterion D: Critical thinking (6 marks)
- 5-6 marks: Excellent critical evaluation is demonstrated. This includes discussing the strengths and limitations of the research methods, comparing conflicting findings (e.g., objective decay vs. subjective confidence), considering biological factors (amygdala), and examining cultural variations.
- 3-4 marks: Some critical thinking is present, but it is superficial or largely descriptive of limitations rather than analytical.
- 1-2 marks: Little to no critical evaluation is present.

Criterion E: Clarity and organization (2 marks)
- 2 marks: The essay is exceptionally well-structured, coherent, and uses precise psychological terminology throughout.
- 1 mark: The essay has some structure but lacks flow or clarity in places.

An excellent response will identify one psychological disorder, such as Major Depressive Disorder (MDD). The candidate will explain Beck's cognitive theory of depression, which highlights the cognitive triad (negative views of the self, the world, and the future), negative cognitive schemas (dysfunctional beliefs activated by stressful life events), and cognitive distortions (e.g., overgeneralization, selective abstraction). Alternatively, Nolen-Hoeksema's ruminative response styles theory can be discussed. Empirical support should be provided, such as Alloy et al. (1999), who conducted a longitudinal study on young adults and found that those with a negative cognitive style were significantly more likely to develop depression. In terms of discussion, candidates should evaluate the bidirectional nature of the relationship between cognition and depression (the 'chicken-and-egg' problem: do negative thoughts cause depression or does depression cause negative thoughts?). They should also discuss the therapeutic success of Cognitive Behavioral Therapy (CBT) as indirect evidence supporting cognitive etiologies, while contrasting cognitive explanations with biological explanations (such as the serotonin hypothesis or genetic predisposition) to show a holistic (biopsychosocial) understanding.

Marks are awarded out of 22 based on five criteria. Focus on the question (2 marks): Addresses the essay prompt clearly, focusing on cognitive explanations of one disorder. Knowledge and comprehension (6 marks): Demonstrates detailed and accurate knowledge of cognitive concepts (e.g., Beck's cognitive triad, schemas) and their application to the disorder. Use of research (6 marks): Supports the discussion with relevant studies (e.g., Alloy et al., 1999; Joiner et al., 1999) which are described and used effectively. Critical thinking (6 marks): Evaluates the explanation, showing awareness of limitations (such as bidirectional ambiguity, lack of biological integration) and strengths (such as CBT application). Clarity and organization (2 marks): The essay is structured logically with clear academic expression.

An outstanding response will focus on one or more specific health promotion programmes, such as the 'Truth' Campaign (aimed at reducing youth smoking) or the '5-a-day' nutritional campaign. The response will explain how these programmes utilize psychological theories of behavior change. For example, the Truth campaign successfully targeted adolescents' social identity and perceived manipulation by tobacco companies, altering subjective norms. Candidates should support their arguments with empirical research, such as Sly et al. (2002), who tracked the long-term effectiveness of the Truth campaign and found a strong correlation between campaign exposure and non-smoking attitudes. Critical evaluation should address: 1. Methodological challenges in measuring the success of promotion programmes (e.g., reliance on self-report data, difficulty establishing cause-and-effect over long periods); 2. Ethical implications (e.g., fear-appeals vs. positive reinforcement); 3. Cultural and socioeconomic factors that may limit a programme's efficacy; and 4. The necessity of multi-level approaches (e.g., combining media campaigns with legislation or environmental restructuring).

Marks are awarded out of 22 based on five criteria. Focus on the question (2 marks): Directly evaluates the effectiveness and design of health promotion programmes. Knowledge and comprehension (6 marks): Demonstrates deep understanding of health promotion strategies and underlying psychological models (e.g., Health Belief Model). Use of research (6 marks): Integrates relevant research studies (e.g., Sly et al., 2002) that evaluate the campaigns. Critical thinking (6 marks): Analyzes methodological limitations in health campaign research, ethical concerns, and the role of cultural/sociodemographic barriers. Clarity and organization (2 marks): Well-structured, coherent, and academically written argument.

1. Identification: The study utilizes an independent measures design with a pre-test and post-test (also acceptable: randomized controlled trial). 2. Strength explanation: Administering a pre-test before the 4-week intervention allows researchers to establish baseline academic stress levels. 3. Study connection: This controls for individual differences in student stress levels, ensuring that any subsequent reduction in stress can be more confidently attributed to the mindfulness app rather than pre-existing differences.

Award 1 mark for correctly identifying the design (independent measures, pre-test post-test, or randomized controlled experiment). Award 1 mark for outlining a strength of this design (e.g., establishing a baseline or controlling participant variables). Award 1 mark for linking the strength directly to the context of the study (measuring academic stress before and after the mindfulness app intervention).

1. Identification: The method is purposive sampling. 2. Limitation explanation: Purposive sampling selects participants based on specific traits, which can lead to selection bias and limit representativeness. 3. Study connection: Since the 50 students are from a single international school, they may share a similar socioeconomic background or academic curriculum, meaning the results regarding academic stress and the mindfulness app may not generalize to students in public or less well-resourced schools.

Award 1 mark for identifying the sampling method as purposive sampling. Award 1 mark for explaining a limitation of purposive sampling (e.g., lack of representativeness, selection bias, or limited generalizability). Award 1 mark for applying this limitation to the specific context of the study (i.e., the single international school setting).

1. Method identification: A researcher can use member checking (or researcher reflexivity, or triangulation) to ensure credibility. 2. Method explanation: Member checking involves returning interview data/interpretations to the participants so they can verify and validate the accuracy of the researcher's transcription or analysis. 3. Study connection: In this study, the researcher would show the interview transcripts or themes back to the 6 students who used the mindfulness app, allowing them to confirm that the findings truly reflect their experiences of academic stress reduction.

Award 1 mark for identifying a valid technique for establishing credibility in qualitative research (e.g., member checking, reflexivity, triangulation). Award 1 mark for explaining how this technique works. Award 1 mark for applying the technique directly to the qualitative interviews about the mindfulness app.

In the stimulus study, several key ethical considerations were applied:
1. Deception: The participants were misled into believing they would deliver a speech to a critical panel of experts. This was used to induce acute stress naturally without demand characteristics.
2. Debriefing: Immediately after the working memory task, the researcher debriefed the participants, revealing the truth about the video camera and the absence of a real panel.
3. Retrospective Consent: Consent was obtained after the deception was revealed, allowing participants to agree or refuse to have their data used.

How further ethical considerations could be addressed in a follow-up study:
1. Protection from Psychological Harm: Inducing acute stress can trigger anxiety. In a follow-up, researchers should monitor the heart rate or self-reported anxiety of participants. They should also offer a relaxation phase or access to a counselor if any participant experiences residual distress.
2. Right to Withdraw: Participants must be explicitly reminded at multiple stages (before, during, and after) that they can withdraw from the study and have their data destroyed immediately without any penalty, which is highly critical in stress-induction environments.
3. Informed Consent: While full disclosure would ruin the stress induction, researchers could gain prior general consent where participants agree to be subjected to a mild stressor without knowing the exact nature beforehand.

Marks are awarded as follows:

- 1 to 2 marks: The student identifies basic ethical considerations (such as deception or debriefing) but fails to connect them clearly to the stimulus, or provides a very brief explanation of how to address them in a follow-up.
- 3 to 4 marks: The student describes the ethical considerations applied in the study with explicit reference to the stimulus (e.g., the speech task and the subsequent debriefing) and begins to explain how further considerations (e.g., protection from harm or right to withdraw) could be addressed in a follow-up.
- 5 to 6 marks: The student provides a well-structured response that accurately describes the applied ethical considerations from the stimulus, and offers a highly detailed, realistic explanation of how additional ethical considerations (such as minimizing psychological harm through stress-relief protocols or reinforcing the right to withdraw) can be effectively addressed in a follow-up study.

In the stimulus study, several key ethical considerations were applied:
1. Deception: The participants were misled into believing they would deliver a speech to a critical panel of experts. This was used to induce acute stress naturally without demand characteristics.
2. Debriefing: Immediately after the working memory task, the researcher debriefed the participants, revealing the truth about the video camera and the absence of a real panel.
3. Retrospective Consent: Consent was obtained after the deception was revealed, allowing participants to agree or refuse to have their data used.

How further ethical considerations could be addressed in a follow-up study:
1. Protection from Psychological Harm: Inducing acute stress can trigger anxiety. In a follow-up, researchers should monitor the heart rate or self-reported anxiety of participants. They should also offer a relaxation phase or access to a counselor if any participant experiences residual distress.
2. Right to Withdraw: Participants must be explicitly reminded at multiple stages (before, during, and after) that they can withdraw from the study and have their data destroyed immediately without any penalty, which is highly critical in stress-induction environments.
3. Informed Consent: While full disclosure would ruin the stress induction, researchers could gain prior general consent where participants agree to be subjected to a mild stressor without knowing the exact nature beforehand.

Marks are awarded as follows:

- 1 to 2 marks: The student identifies basic ethical considerations (such as deception or debriefing) but fails to connect them clearly to the stimulus, or provides a very brief explanation of how to address them in a follow-up.
- 3 to 4 marks: The student describes the ethical considerations applied in the study with explicit reference to the stimulus (e.g., the speech task and the subsequent debriefing) and begins to explain how further considerations (e.g., protection from harm or right to withdraw) could be addressed in a follow-up.
- 5 to 6 marks: The student provides a well-structured response that accurately describes the applied ethical considerations from the stimulus, and offers a highly detailed, realistic explanation of how additional ethical considerations (such as minimizing psychological harm through stress-relief protocols or reinforcing the right to withdraw) can be effectively addressed in a follow-up study.

Credibility in qualitative research is comparable to internal validity in quantitative research; it represents the degree to which the findings represent a trustworthy and accurate reflection of the participants' experiences. Given the sensitive nature of researching refugees adjusting to a new host country, addressing researcher bias is crucial. Two major strategies to enhance credibility are reflexivity and researcher triangulation. First, reflexivity involves the researcher reflecting on their own background, beliefs, assumptions, and potential biases that might influence how they conduct the semi-structured interviews and interpret the data. Personal reflexivity requires the researcher to keep a reflexive journal, documenting how their own cultural background, socio-economic status, or previous experiences with migrant groups might affect their rapport with the 12 participants and their thematic analysis. Epistemological reflexivity requires them to consider how the chosen qualitative methodology (semi-structured interviews) limits or shapes the findings. By openly documenting these reflections, the researcher increases the transparency and credibility of the study. Second, researcher triangulation involves incorporating multiple researchers in the collection or analysis of the qualitative data. In this study, a single researcher conducted the interviews. To implement researcher triangulation, the researcher could have one or more independent researchers review the audio recordings or read the interview transcripts. These researchers would independently code the transcripts and generate themes. The researchers would then compare their thematic findings to see if they arrive at similar conclusions. This reduces the risk of individual confirmation bias, where a single researcher only sees patterns that align with their preconceived theories. While both methods significantly boost credibility, they have limitations: reflexivity requires deep self-awareness and cannot completely eliminate subconscious bias, while researcher triangulation is resource-intensive, time-consuming, and requires a clear process for resolving disagreements between researchers.

Marks are awarded out of 9 based on the following holistic criteria: [7 to 9 marks] The response shows a deep and accurate understanding of credibility in qualitative research. Both reflexivity (personal and epistemological) and researcher triangulation are clearly defined, thoroughly discussed, and explicitly applied to the scenario of refugees and semi-structured interviews. The strengths and limitations of both strategies are critically analyzed. [4 to 6 marks] The response shows a basic understanding of credibility, reflexivity, and/or researcher triangulation. There is an attempt to apply these concepts to the scenario, but the discussion is primarily descriptive, lacks critical depth, or focuses disproportionately on only one of the concepts. [1 to 3 marks] The response is superficial, containing only brief or inaccurate definitions of the concepts with little to no application to the scenario. [0 marks] The response does not meet any of the criteria.