2022 Edexcel AS Level Psychology (8PS0) Practice Paper with Answers

According to Milgram's Agency Theory, individuals typically operate in an autonomous state where they make independent decisions and accept personal responsibility for their actions. However, when confronted with a legitimate authority figure, they undergo an agentic shift, transitioning into an agentic state. In this state, they perceive themselves as mere instruments carrying out another person's wishes, which allows them to obey destructive orders by attributing moral responsibility to the authority figure rather than themselves.

Award 1 mark for each point up to a maximum of 3 marks: Identification and description of the autonomous state where individuals feel personal responsibility (1 mark); Description of the agentic shift where an individual transitions due to a perceived legitimate authority figure (1 mark); Description of the agentic state where the individual acts as an agent of the authority and displaces responsibility (1 mark). Accept other valid descriptions of agency theory concepts, such as binding factors preventing them from disobeying.

Social Impact Theory explains influence using three key principles: 1. Strength refers to the perceived power, status, or authority of the source of influence (e.g., a police officer has more strength than a peer). 2. Immediacy refers to the physical or psychological closeness of the source to the target at the time of the interaction (e.g., an authority figure standing next to you has more impact than one emailing you). 3. Number refers to how many sources are attempting to influence the target (e.g., more sources typically increase social impact, although this effect levels off).

Award 1 mark for each principle explained in the context of influence/obedience up to a maximum of 3 marks: Strength: Explains strength as the status, power, or authority of the source (1 mark); Immediacy: Explains immediacy as physical, temporal, or psychological closeness of the source to the target (1 mark); Number: Explains number as the quantity of sources relative to targets affecting the level of impact (1 mark).

According to Tajfel and Turner's Social Identity Theory (SIT), the students' behavior can be explained through three main stages:

1. **Social Categorisation:** The Oakwood High students automatically categorise themselves as the 'in-group' and the Maple Academy students as the 'out-group'.
2. **Social Identification:** Oakwood students adopt the identity, norms, and values of their school group. This strengthens their belongingness and leads to conforming to group behaviours, such as avoiding Maple students.
3. **Social Comparison & Positive Distinctiveness:** To boost their own collective self-esteem, the Oakwood students compare their school favourably against Maple Academy. They perceive their in-group as superior.
4. **Out-group Derogation:** This comparison manifests as active hostility, leading them to post derogatory comments on social media and refuse to sit with the Maple Academy students during joint induction sessions to maintain group boundaries.

Award 1 mark for each relevant point of explanation applied to the scenario (up to 4 marks).

- **1 mark** for explaining social categorisation in the context of Oakwood High (in-group) and Maple Academy (out-group).
- **1 mark** for explaining social identification, where students adopt Oakwood High's group identity and conform to the hostile norms.
- **1 mark** for explaining social comparison, where Oakwood students compare themselves to Maple Academy to enhance their self-esteem.
- **1 mark** for linking these processes to the specific hostile behaviors in the scenario (derogatory social media posts and refusal to sit together as out-group derogation/in-group favouritism).

*Accept other reasonable applications of Social Identity Theory concepts (e.g., quest for positive distinctiveness).*

Latané's Social Impact Theory states that social influence is a function of Strength, Immediacy, and Number, represented as \(I = f(S \times I \times N)\).

1. **Strength (S):** Chloe leverages her status and authority as a store manager. By delivering the message herself rather than delegating it, she increases her perceived power and credibility, making her team more likely to comply.
2. **Immediacy (I):** By choosing a face-to-face meeting in a small training room over an email, Chloe decreases the physical and psychological distance between herself and the targets, which significantly increases her social impact.
3. **Number (N):** Chloe is a single source influencing 15 targets. While the divisional effect suggests her impact might be diluted across 15 people, her physical presence and high strength help counter this dilution effect.
4. **Application/Synthesis:** The combination of high strength (managerial role) and high immediacy (close physical proximity) ensures a much higher multiplier effect of social impact on the sales assistants compared to a low-immediacy email.

Award 1 mark for each relevant point of explanation applied to the scenario (up to 4 marks).

- **1 mark** for identifying and applying the concept of **Strength** (e.g., Chloe using her status/authority as a store manager to increase influence).
- **1 mark** for identifying and applying the concept of **Immediacy** (e.g., holding a face-to-face meeting in a small room increases physical proximity compared to a distant email).
- **1 mark** for identifying and applying the concept of **Number** (e.g., noting that Chloe is 1 source attempting to influence 15 targets, which may cause a divisional effect).
- **1 mark** for explaining how the interaction of these factors (mathematical formula/multiplier effect) results in greater overall compliance in this scenario than written communication.

*Reject answers that only define the terms without linking them directly to Chloe and her sales assistants.*

AO1: Latané (1981) proposed Social Impact Theory, which states that the impact of social influence depends on the Strength, Immediacy, and Number of sources relative to the target: \(I = f(S \times I \times N)\). Strength refers to the status, authority, or power of the source of influence. Immediacy refers to the physical distance or psychological proximity between the source and target. Number refers to the quantity of sources present. The theory also includes the multiplicative effect, where impact increases with more sources, and the divisional effect, where impact is diluted if spread over multiple targets. AO3: A strength of the theory is that it is supported by empirical evidence, such as Sedikides and Jackson (1990) who found that zoo visitors were more likely to obey an authority figure if they wore a uniform (strength) and were physically present in the same room (immediacy). Another strength is its predictive power; Milgram's variations support the concept of immediacy, as obedience dropped significantly from 65% to 20.5% when the experimenter gave instructions over the telephone rather than in person. However, a weakness of the theory is that it is heavily descriptive rather than explanatory. Unlike Agency Theory, which explains the internal cognitive shift (agentic state) a person undergoes, Social Impact Theory simply describes the external conditions under which obedience changes. Additionally, it ignores individual differences, such as personality traits like locus of control or the authoritarian personality, which can cause people to resist or obey authority regardless of strength, immediacy, or number.

AO1 (4 marks): Candidates must demonstrate accurate, thorough, and detailed knowledge of Social Impact Theory, including the principles of strength, immediacy, and number, as well as the multiplicative and divisional effects. AO3 (4 marks): Candidates must provide a balanced and logical evaluation of the theory, including strengths (empirical support like Milgram or Sedikides & Jackson) and weaknesses (descriptive nature, ignoring individual differences/personality factors). Levels-based marking grid: Level 1 (1-2 marks): Isolated elements of knowledge/understanding. Evaluation is generic or absent. Level 2 (3-4 marks): Basic knowledge/understanding. Limited, superficial evaluation with an unstructured argument. Level 3 (5-6 marks): Accurate and mostly structured knowledge/understanding. Evaluation is developed, offering some balanced points. Level 4 (7-8 marks): Precise, thorough, and highly structured knowledge/understanding. Evaluation is coherent, balanced, and leads to a logical overall conclusion.

To gain 3 marks, candidates must explain the role of schemas in reconstruction and how this leads to error.

- **1 mark** for defining/explaining what a schema is (e.g., 'Schemas are mental shortcuts or packages of knowledge based on past experiences').
- **1 mark** for explaining the process of reconstruction (e.g., 'When recalling information, we reconstruct the memory rather than retrieving it perfectly, using schemas to fill in any missing details or gaps').
- **1 mark** for explaining how this leads to errors/distortion (e.g., 'This can cause errors because the reconstructed memory may be distorted to fit our expectations or cultural stereotypes, such as changing unfamiliar elements of a story to make sense of it').

Up to 3 marks are awarded for the explanation:

- **1 mark**: Identifies schemas as cognitive structures or packages of knowledge.
- **1 mark**: Explains how schemas fill in gaps during memory retrieval/reconstruction.
- **1 mark**: Explains how this results in distortion or errors (e.g., rationalisation, levelling, or fitting expectations).

*Note: Accept reference to Bartlett's (1932) War of the Ghosts study as a valid application of how schemas distort memory.*

To gain 3 marks, the response must identify a strength, explain how it is achieved in a cognitive context, and describe the scientific benefit of this.

- **1 mark** for identifying the strength (e.g., 'A strength is the high control over extraneous variables').
- **1 mark** for explaining how this is achieved in cognitive research (e.g., 'This means researchers can keep the environment, presentation times of memory stimuli, and distraction tasks completely identical for all participants').
- **1 mark** for explaining the scientific benefit (e.g., 'This allows researchers to establish a clear cause-and-effect relationship between the independent variable and dependent variable, increasing internal validity and scientific credibility').

Up to 3 marks are awarded for the explanation of a strength:

- **1 mark**: States a valid strength of laboratory experiments (e.g., high control, replication, standardization).
- **1 mark**: Explains how this strength applies to cognitive psychology research methods (e.g., controlling stimuli exposure, noise levels during a memory test).
- **1 mark**: Explains why this is beneficial (e.g., establishing cause-and-effect, increasing internal validity, or allowing easy replication to check reliability).

*Do not award marks for generic research methods answers that do not contextualise or explain the mechanism of the strength.*

To calculate the mean, sum all the scores and divide by the total number of participants (N = 8). Sum = 7 + 5 + 9 + 6 + 8 + 7 + 8 + 7 = 57. Mean = \(\frac{57}{8}\) = 7.125. Rounded to two decimal places, this is 7.13.

1 mark for showing correct working (e.g., \(\frac{57}{8}\) or showing the sum of 57). 1 mark for the correct mean rounded to two decimal places (7.13).

First, find the total number of participants who recalled more than 8 words: 12 + 18 = 30. Next, find the total number of participants in both conditions: 30 + 40 = 70. Calculate the percentage: \(\frac{30}{70} \times 100\) = 42.857%. Rounded to the nearest whole percentage, this is 43%.

1 mark for correct working to find the overall proportion (e.g., \(\frac{30}{70}\) or \(\frac{12+18}{30+40}\)). 1 mark for the correct final percentage rounded to the nearest whole number (43% or 43).

To find the median, first arrange the data in ascending order: 8, 9, 11, 12, 14, 15, 19. Identify the middle value in the ordered sequence. Since there are 7 data points, the median is the 4th value, which is 12.

1 mark for arranging the data in order (8, 9, 11, 12, 14, 15, 19). 1 mark for identifying the correct median (12).

AO1: The Working Memory Model (WMM) proposed by Baddeley and Hitch (1974) suggests that short-term memory (STM) is an active, multi-component processor rather than a single unitary store. The Central Executive is the most important component; it controls attention, coordinates the activities of the slave systems, and has a very limited capacity. The Phonological Loop processes verbal and auditory information and is divided into the phonological store ('inner ear') and the articulatory rehearsal process ('inner voice'). The Visuospatial Sketchpad processes visual and spatial information ('inner eye') and is divided into the visual cache and the inner scribe. The Episodic Buffer, added in 2000, is a temporary store that integrates information from the other components and long-term memory to create cohesive mental episodes. AO3: One strength of the model is clinical support from brain-damaged patient studies. Patient KF had severe impairment of his verbal short-term memory (phonological loop) but his visual memory (visuospatial sketchpad) remained intact, supporting the existence of separate slave systems. Another strength comes from dual-task laboratory experiments. Research shows that participants find it difficult to perform two visual tasks at the same time, but can successfully perform a visual and a verbal task together, demonstrating that the subsystems have separate and limited capacities. However, a major limitation of the WMM is that the Central Executive is too vague and poorly understood. Critics argue that the concept of a single 'attention' controller is oversimplified and that it likely consists of multiple sub-components, which reduces the explanatory power of the model. Furthermore, many supporting laboratory experiments use artificial tasks (such as remembering lists of random letters or tracking a moving light), meaning the model may lack ecological validity when explaining how memory operates in complex, real-world situations.

AO1 (4 marks): Up to 4 marks are available for demonstrating accurate knowledge and understanding of the Working Memory Model. Candidates can earn marks for describing the function, capacity, and sub-components of the Central Executive, Phonological Loop, Visuospatial Sketchpad, and Episodic Buffer, as well as the active nature of STM. AO3 (4 marks): Up to 4 marks are available for evaluating the model. Points can include: clinical evidence (e.g., patient KF), experimental evidence (e.g., dual-task studies), criticism regarding the vagueness of the Central Executive, and issues of ecological validity in laboratory research. Level 1 (1-2 marks): Demonstrates isolated elements of knowledge and understanding. Evaluation is generic, weak, or absent. Level 2 (3-4 marks): Demonstrates some accurate knowledge and understanding. Evaluation points are present but may lack depth or balance. Level 3 (5-6 marks): Demonstrates mostly accurate knowledge and understanding. Evaluation is developed with logical reasoning and a clear structure. Level 4 (7-8 marks): Demonstrates precise, comprehensive knowledge and understanding. Evaluation is fully balanced, showing deep critical analysis and leading to a coherent conclusion.

Indicative content for the essay:

AO1 (6 marks):
- Social psychology emphasizes situational factors, such as obedience being influenced by authority figures, social settings, or peer pressure.
- Milgram's Agency Theory proposes that we shift from an autonomous state (self-directed) to an agentic state (acting as an agent of authority) due to situational cues like proximity or status of the authority figure.
- Social Identity Theory suggests that our behaviour is shaped by group membership (in-groups and out-groups), leading to prejudice and discrimination to boost self-esteem.
- Cognitive psychology focuses on how internal mental processes, such as memory encoding, storage, and retrieval, influence behaviour.
- Reconstructive Memory (Bartlett) argues that memory is not a direct recording of events but is actively reconstructed using schemas (mental frameworks) based on prior knowledge and expectations.
- The Multi-Store Model of Memory (Atkinson and Shiffrin) highlights how information flows through sensory memory, short-term memory, and long-term memory based on processes like attention and rehearsal.

AO3 (6 marks):
- Evidence from Milgram's variations supports situational factors; obedience dropped from 65% to 40% when the teacher and learner were in the same room, showing physical environment changes behaviour.
- However, agency theory is criticized for being more of a description than an explanation, and it does not explain individual differences (e.g., why 35% of Milgram's original participants refused to go to 450V, which may be due to internal/cognitive appraisal).
- Schema theory is supported by lab experiments (e.g., Loftus and Palmer) showing that leading questions can alter eyewitness memory, demonstrating how internal cognitive frameworks reconstruct reality.
- However, cognitive models are often criticized for computer paternalism (treating humans as information processors while ignoring social emotions and motivations that dictate real-life memory recall).
- Synthesis/Conclusion: Human behaviour cannot be fully explained by situational or cognitive factors alone. An interactionist perspective is more useful; situational factors (social) provide the context, but how an individual interprets that context depends on their internal schemas and cognitive processing (cognitive).

Level 1 (1-3 marks): Demonstrates isolated knowledge and understanding of social and cognitive explanations. Evaluation is weak, superficial, or absent. Lacks structured argument.

Level 2 (4-6 marks): Demonstrates some accurate knowledge of social (e.g., Agency Theory) and cognitive (e.g., Schema Theory) explanations. Evaluation is present but basic, offering simplistic comparisons. Structure is largely present.

Level 3 (7-9 marks): Demonstrates mostly accurate and detailed knowledge of both social and cognitive explanations. Evaluation is developed, addressing both sides with logical chains of reasoning, though some imbalances may exist between social and cognitive aspects.

Level 4 (10-12 marks): Demonstrates precise, detailed, and comprehensive knowledge of both areas. Evaluation is balanced, highly structured, and integrates a sophisticated comparison of situational versus internal factors, leading to a logical and nuanced conclusion.

A represents the dendrites, which are responsible for receiving incoming electrochemical signals from other neurons. B represents the myelin sheath, a lipid-rich layer that insulates the axon to increase the speed of electrical impulse propagation. C represents the axon terminals (or terminal buttons), which store neurotransmitters in vesicles and release them across the synaptic gap.

Award 1 mark for each correct label identified, up to a maximum of 3 marks. Label A: Dendrite / Dendrites (Do not accept: Receptor / Cell body). Label B: Myelin sheath / Myelin (Do not accept: Schwann cell / Axon). Label C: Terminal button / Axon terminal / Synaptic knob / Terminal branch (Do not accept: Vesicle / Synapse).

A represents the dendrites, which are responsible for receiving incoming electrochemical signals from other neurons. B represents the myelin sheath, a lipid-rich layer that insulates the axon to increase the speed of electrical impulse propagation. C represents the axon terminals (or terminal buttons), which store neurotransmitters in vesicles and release them across the synaptic gap.

Award 1 mark for each correct label identified, up to a maximum of 3 marks. Label A: Dendrite / Dendrites (Do not accept: Receptor / Cell body). Label B: Myelin sheath / Myelin (Do not accept: Schwann cell / Axon). Label C: Terminal button / Axon terminal / Synaptic knob / Terminal branch (Do not accept: Vesicle / Synapse).

Step 1: Calculate the differences (After minus Before) and exclude any zero differences: Participant A: \(15 - 12 = +3\); Participant B: \(14 - 15 = -1\); Participant C: \(24 - 18 = +6\); Participant D: \(14 - 14 = 0\) (Excluded, \(N = 5\)); Participant E: \(17 - 10 = +7\); Participant F: \(13 - 11 = +2\). Step 2: Rank the absolute differences from smallest to largest: Participant B (1) = Rank 1; Participant F (2) = Rank 2; Participant A (3) = Rank 3; Participant C (6) = Rank 4; Participant E (7) = Rank 5. Step 3: Sum the positive and negative ranks: Sum of negative ranks = 1 (Participant B); Sum of positive ranks = \(3 + 4 + 5 + 2 = 14\). Step 4: Determine the T value (the smaller of the two sums): \(T = 1\).

1 mark for correctly calculating the differences and identifying that Participant D is excluded. 1 mark for correctly ranking the absolute differences. 1 mark for calculating the sum of positive ranks (14) and sum of negative ranks (1). 1 mark for identifying the final Wilcoxon T value as 1.

Marcus has damaged his prefrontal cortex, which is responsible for executive functioning, decision-making, and self-control. Normally, the prefrontal cortex exerts inhibitory control over the limbic system, particularly the amygdala, which regulates emotional responses like anger. Because Marcus's prefrontal cortex is damaged, it cannot effectively inhibit the amygdala's emotional triggers, leading to his increased impulsivity and frequent verbal outbursts when frustrated.

Up to 4 marks are available for explaining Marcus's behavior using brain functioning and aggression. [AO1] 1 mark for identifying that the prefrontal cortex is responsible for self-control, rational decision-making, and inhibiting aggressive impulses. [AO2] 1 mark for applying this to Marcus's increased impulsivity and low frustration tolerance following his sporting accident. [AO1] 1 mark for identifying that the limbic system (specifically the amygdala) generates emotional and aggressive responses. [AO2] 1 mark for applying this to explain that because Marcus's damaged prefrontal cortex cannot regulate his amygdala, he exhibits verbal outbursts.

According to evolutionary psychology, male aggression often stems from intrasexual competition, where males compete with one another for resources and mates. Liam perceives Dan as a threat to his reproductive opportunity with the female partner. By displaying verbal aggression, Liam is using a mate retention strategy (such as direct guarding or negative inducements) to deter Dan and assert dominance, ensuring his own reproductive fitness is maintained.

Up to 4 marks are available for explaining Liam's behavior using the evolutionary explanation. [AO1] 1 mark for identifying that males engage in intrasexual competition to compete with rivals for access to mates. [AO2] 1 mark for applying this to explain that Liam feels threatened by Dan talking to the female partner because Dan represents a reproductive rival. [AO1] 1 mark for identifying mate retention strategies (e.g., direct guarding, threats) as evolutionary mechanisms to prevent mate poaching. [AO2] 1 mark for applying this to explain Liam's verbal aggression as a means of asserting dominance and deterring Dan from pursuing the same partner.

Testosterone is an androgen hormone associated with aggressive behavior, dominance-seeking, and competitiveness in males. However, the dual-hormone hypothesis suggests that testosterone only leads to aggression when cortisol levels are low. Cortisol is a stress hormone associated with fear and the regulation of autonomic arousal, which typically inhibits impulsive aggression. In Dr. Aris's study, the prisoners' low cortisol levels meant the 'brake' on aggressive behavior was absent, allowing their high testosterone levels to freely drive extreme violent outbursts and offenses.

Up to 4 marks are available for explaining Dr. Aris's findings using hormones. [AO1] 1 mark for identifying that testosterone is linked to dominance, competitiveness, and increased aggression. [AO2] 1 mark for applying this to explain why the male prisoners with violent histories have high levels of testosterone. [AO1] 1 mark for explaining the dual-hormone hypothesis, stating that low cortisol acts as a facilitator for testosterone's aggressive effects (or high cortisol inhibits it). [AO2] 1 mark for applying this to the findings, explaining that the combination of low cortisol (lack of emotional control/fear) and high testosterone led to the prisoners' highly violent offenses.

### Indicative Content

**AO1 (4 marks): Knowledge and understanding of brain functioning as an explanation of aggression**
* The amygdala, part of the limbic system, is responsible for processing emotions, recognizing social cues, and triggering the fight-or-flight response. Structural or functional abnormalities in the amygdala can lead to misinterpreting threats and heightened aggressive reactions.
* The prefrontal cortex (PFC) is involved in decision-making, social behavior, and inhibiting impulsive behavior. Reduced functioning or damage to the PFC impairs its ability to govern or override emotional impulses from the limbic system, leading to reactive aggression.
* The corpus callosum allows communication between the analytical left hemisphere and the emotional right hemisphere. Deficits in this connection may mean the cognitive brain cannot adequately regulate emotional outbursts.
* Other structures like the hippocampus and hypothalamus play roles in memory and emotional integration; damage can lead to inappropriate contextual reactions, resulting in aggression.

**AO3 (4 marks): Analysis and evaluation of brain functioning as an explanation of aggression**
* **Strength (Supporting Evidence):** This explanation is supported by scientific neuroimaging research. For example, Raine et al. (1997) used PET scans to show that murderers pleading NGRI (Not Guilty by Reason of Insanity) had lower glucose metabolism in their prefrontal cortex and asymmetrical activity in the amygdala compared to non-violent controls.
* **Weakness (Correlation vs. Causation):** Much of the research linking brain functioning and aggression is correlational. For instance, finding a link between low prefrontal cortex activity and violent behavior does not prove that the brain structure caused the aggression; environmental trauma, substance abuse, or social factors could have altered brain function or caused the violence.
* **Weakness (Reductionism):** Explaining aggression solely through brain functioning is biologically reductionist. It simplifies complex human social interactions down to physical brain structures, ignoring cognitive processes (like hostile attribution bias) and social factors (like observational learning and reinforcement, as proposed by Social Learning Theory).
* **Strength (Practical Applications):** Understanding how brain functioning relates to aggression has valuable real-world applications. It can help identify individuals at risk of violent behavior or assist in developing targeted medical treatments (e.g., pharmacotherapy or neuro-rehabilitation) to manage impulsive aggression in clinical populations.

### Marking Grid (8 Marks)

| Level | Marks | Descriptor |
| --- | --- | --- |
| **Level 0** | 0 | No rewardable material. |
| **Level 1** | 1–2 | **Demonstrates isolated elements of knowledge and understanding. (AO1)**
**A conclusion may be presented but is generic or lacks support. (AO3)**
• Little or no attempt to evaluate. Points are sparse and largely irrelevant. |
| **Level 2** | 3–4 | **Demonstrates some accurate knowledge and understanding. (AO1)**
**Provides an evaluation that is limited, with some relevance but lacking development. (AO3)**
• Response contains some structured points but is unbalanced, focusing heavily on description or evaluation alone. |
| **Level 3** | 5–6 | **Demonstrates mostly accurate knowledge and understanding. (AO1)**
**Provides a developed evaluation that is logical and shows a balanced approach. (AO3)**
• Response is structured with clear, logical chains of reasoning, addressing both strengths and weaknesses. |
| **Level 4** | 7–8 | **Demonstrates precise, detailed, and comprehensive knowledge and understanding. (AO1)**
**Provides a thorough and well-developed evaluation that is balanced, leading to a coherent and logical conclusion. (AO3)**
• The evaluation is sophisticated, integrating multiple perspectives (e.g., methodology, reductionism, applications) seamlessly.

To explain Leo's fear using classical conditioning: 1. The loud noise of the vacuum cleaner acts as an unconditioned stimulus (UCS) which naturally produces an unconditioned response (UCR) of fear or crying in Leo. 2. The storage cupboard starts as a neutral stimulus (NS) which initially produces no fear response. Through repeated pairing, the cupboard (NS) is presented immediately before the loud vacuum noise (UCS). 3. As a result, Leo forms an association between the two, making the cupboard a conditioned stimulus (CS) which on its own produces the conditioned response (CR) of crying/fear.

Award 1 mark for each relevant point of application (up to 3 marks):
- 1 mark for identifying the UCS (loud noise) and the UCR (fear/crying).
- 1 mark for explaining the pairing/association of the NS (cupboard) with the UCS (loud noise).
- 1 mark for identifying the cupboard as the CS that leads to the CR (fear/crying).

Accept other reasonable applications of classical conditioning concepts to the scenario.

One strength of Watson and Rayner (1920) is that the study had high internal validity due to the controlled, laboratory conditions. For example, the researchers established a baseline by testing Albert's reactions to various stimuli (white rat, rabbit, cotton wool) beforehand to ensure he did not already fear them. This standardization ensured that the sudden fear reaction was directly caused by the conditioning process (associating the rat with the loud bar strike) and not external variables, making the cause-and-effect relationship more credible.

- 1 mark for identifying a strength (e.g., standardized procedure, high control over extraneous variables).
- 1 mark for describing how this strength applies specifically to the 'Little Albert' study (e.g., testing baseline responses to the white rat, striking the steel bar behind his head).
- 1 mark for explaining why this is a strength / what it means for the research (e.g., establishing a clear cause-and-effect relationship, improving internal validity).

Becker et al. (2002) found several key changes in eating behavior and attitudes between the 1995 (pre-television) and 1998 (post-television) cohorts: 1. The percentage of girls with an EAT-26 score greater than 20 (indicating disordered eating attitudes) more than doubled, rising from \(12.7\%\) in 1995 to \(29.2\%\) in 1998. 2. Self-induced vomiting as a method of weight control rose from \(0\%\) in the 1995 cohort to \(11.3\%\) in the 1998 cohort. 3. Qualitative data revealed that the girls admired television characters and expressed a desire to emulate their slim appearance, viewing it as a path to career success.

Award 1 mark for each relevant point describing the results (up to 3 marks):
- 1 mark for stating the increase in EAT-26 scores over 20 (e.g., from \(12.7\%\) in 1995 to \(29.2\%\) in 1998).
- 1 mark for stating the rise in self-induced purging/vomiting behavior (e.g., from \(0\%\) to \(11.3\%\)).
- 1 mark for mentioning qualitative findings regarding the desire to emulate slim Western television characters/body dissatisfaction.

Note: Precise percentages are not strictly required for marks, but descriptions of directional changes (e.g., 'more than doubled') must be accurate.

Oliver's fear can be explained using Ivan Pavlov's classical conditioning theory: 1. Before conditioning, the sharp pain from the dentist's drill is the Unconditioned Stimulus (UCS), which naturally triggers the Unconditioned Response (UCR) of crying and fear in Oliver. 2. The dentist's white coat starts as a Neutral Stimulus (NS) because it does not initially cause fear. 3. During his visit, the white coat (NS) is repeatedly paired and associated with the painful drill (UCS). 4. After this association occurs, the white coat becomes the Conditioned Stimulus (CS), which now independently triggers the Conditioned Response (CR) of crying and fear.

Mark scheme (4 marks total): 1 mark for identifying the Unconditioned Stimulus (UCS) as the sharp pain/drill and the Unconditioned Response (UCR) as crying/fear. 1 mark for identifying the dentist's white coat as the Neutral Stimulus (NS). 1 mark for explaining the process of pairing/association between the white coat (NS) and the pain from the drill (UCS). 1 mark for identifying the white coat as the Conditioned Stimulus (CS) and crying/fear as the Conditioned Response (CR). Accept: alternative phrasing that correctly applies classical conditioning terminology to Oliver's scenario. Reject: explanations based solely on operant conditioning (e.g. reinforcement, punishment).

Mia's behavior can be explained using Albert Bandura's Social Learning Theory: 1. Mia observes her older brother, Leo, who acts as a significant role model for her. 2. Mia witnesses Leo receiving praise and a hug from their mother, which acts as vicarious reinforcement, motivating Mia to mimic the action. 3. Mia demonstrates cognitive mediational processes by paying attention to Leo's action and retaining the memory of it until the next day. 4. Mia has the physical capability (motor reproduction) and the motivation to copy the behavior because she anticipates receiving the same reward from her mother.

Mark scheme (4 marks total): 1 mark for identifying Leo as the role model who is being observed by Mia. 1 mark for explaining that Mia experiences vicarious reinforcement by watching Leo get rewarded with praise and a hug from their mother. 1 mark for applying cognitive mediational processes (attention and retention) to Mia remembering the action until the next day. 1 mark for explaining motor reproduction and motivation (Mia reproduces the behavior hoping to receive the same positive reinforcement). Accept: other valid applications of social learning theory terminology fully contextualised to Mia and Leo. Reject: answers that only list the stages of SLT without applying them to the scenario.

### AO1 (Knowledge & Understanding) - 4 Marks
* **Classical Conditioning Basis**: Systematic desensitisation (SD) is based on classical conditioning, specifically counterconditioning, where a new response (relaxation) is learned to replace the old response (fear/anxiety) to a phobic stimulus. This is called reciprocal inhibition because one cannot be anxious and relaxed at the same time.
* **Anxiety Hierarchy**: The therapist and client construct an anxiety hierarchy, ordering situations involving the phobic stimulus from least to most frightening.
* **Relaxation Training**: The client is taught deep relaxation techniques, such as deep muscle relaxation, breathing exercises, or mental imagery.
* **Gradual Exposure**: The client is gradually exposed to the phobic stimulus (either in vivo/real-life or in vitro/imagined) at each level of the hierarchy, only moving to the next level once they can remain completely relaxed at the current stage.

### AO3 (Evaluation & Analysis) - 4 Marks
* **Research Support (Strength)**: There is strong evidence for its effectiveness. For example, McGrath et al. (1990) found that about 75% of patients with phobias responded successfully to SD. This shows it is an effective clinical treatment for a majority of individuals.
* **Ethical Considerations (Strength)**: SD is considered much more ethical and acceptable to patients compared to flooding. It involves gradual exposure and gives the patient control over the pace, leading to lower attrition (dropout) rates and less cognitive trauma.
* **Symptom Substitution (Weakness)**: Behaviourists focus only on observable behaviour, but psychodynamic theorists argue that SD only treats the symptoms of a phobia rather than the underlying cause. If the root cause is not addressed, the phobia may simply manifest as a different symptom (symptom substitution).
* **Ineffectiveness for Evolutionary Phobias (Weakness)**: SD is highly effective for specific, learned phobias (e.g., fear of lifts) but less effective for evolutionary phobias (e.g., fear of snakes, dark, heights) which may have an innate survival basis rather than a conditioned origin.

**Marking Criteria:**

* **Level 1 (1–2 marks)**:
* Demonstrates isolated elements of knowledge and understanding (AO1).
* Evaluation is generic or absent, with little or no link to systematic desensitisation (AO3).

* **Level 2 (3–4 marks)**:
* Demonstrates some accurate knowledge and understanding of systematic desensitisation (AO1).
* Provides limited evaluation with basic strengths or weaknesses (AO3).

* **Level 3 (5–6 marks)**:
* Demonstrates mostly accurate knowledge and understanding of systematic desensitisation, describing key steps clearly (AO1).
* Explains both strengths and weaknesses of systematic desensitisation with some detail and logical flow (AO3).

* **Level 4 (7–8 marks)**:
* Demonstrates detailed, comprehensive knowledge and understanding of systematic desensitisation (AO1).
* Provides a well-developed, balanced, and critical evaluation of systematic desensitisation, showing coherent psychological reasoning and concluding effectively (AO3).

AO1 Knowledge and Understanding:
- The biological approach suggests aggression is determined by physiological systems. High levels of the hormone testosterone are linked to aggressive and dominant behavior. Brain structures, particularly a hyperactive amygdala (which processes threat) and an underactive prefrontal cortex (responsible for impulse control and decision making), are also implicated in aggression.
- From an evolutionary perspective, aggression is seen as an adaptive behavior that evolved to secure resources, defend status, and ensure gene survival.
- In contrast, learning theories suggest aggression is acquired through environmental experiences. Operant conditioning proposes that aggression is maintained if it is directly reinforced (e.g., a child getting what they want through bullying).
- Social Learning Theory (SLT) proposes that aggressive behavior is learned through the observation and imitation of aggressive role models, mediated by cognitive processes (attention, retention, reproduction, and motivation) and vicarious reinforcement.

AO3 Analysis and Evaluation:
- The biological approach is supported by scientific, objective research. For example, Raine et al. (1997) used PET scans to show brain dysfunction in murderers pleading GSNG, giving the biological explanation high scientific credibility. However, brain imaging studies only establish correlations, not direct causal links.
- Learning theories are also supported by empirical evidence, such as Bandura, Ross and Ross (1961), who demonstrated that children exposed to aggressive adult models imitated those exact physical and verbal behaviors. However, this study was a laboratory experiment, which lacks ecological validity and may reflect demand characteristics rather than genuine aggressive intent.
- The biological approach can be criticized for biological reductionism, as it reduces complex social actions to basic physical mechanisms (e.g., testosterone levels), ignoring the situational and social triggers of aggression.
- Learning theories are deterministic in assuming that environmental stimuli or modeling inevitably produce aggression, neglecting individual genetic vulnerabilities or cognitive choice.
- Practical applications differ significantly: biological explanations have led to pharmacological treatments (such as anti-androgens or SSRIs) to manage aggressive urges, whereas learning theories have successfully underpinned behavior modification programs like Token Economies and parent training programs.
- Ultimately, an interactionist approach (e.g., the Diathesis-Stress Model) provides a more comprehensive explanation, suggesting that biological predispositions (such as low MAOA gene expression) may only manifest as aggressive behavior when triggered by an adverse environment (such as experiencing abuse or learning aggression through modeling).

Indicative content is split into AO1 (6 marks) and AO3 (6 marks).

Level 1 (1-3 marks):
- Demonstrates isolated elements of knowledge (AO1) with little or no evaluation (AO3).
- Points are unstructured and lack clarity; spelling and grammar errors may obscure meaning.

Level 2 (4-6 marks):
- Demonstrates some accurate knowledge of both the biological approach and learning theories (AO1).
- Attempted evaluation is present but limited, mostly descriptive or generic (AO3).
- The response is occasionally structured and has some logical flow.

Level 3 (7-9 marks):
- Demonstrates mostly accurate and detailed knowledge of both approaches in relation to aggression (AO1).
- Evaluation is developed, offering clear strengths and weaknesses of both approaches, with some comparative points (AO3).
- The structure is mostly logical, leading to a coherent argument.

Level 4 (10-12 marks):
- Demonstrates precise, comprehensive, and well-balanced knowledge of both biological and learning explanations of aggression (AO1).
- Evaluation is critical, balanced, and thoroughly developed, demonstrating a clear awareness of the nature vs nurture debate and methodological differences (AO3).
- Shows logical chains of reasoning, concluding with a well-formulated, balanced synthesis or judgment.