IGCSE CCEA Psychology: Unit Test Mock Paper Walkthrough | IGCSE CCEA 心理学：单元测试模拟卷解析

📚 IGCSE CCEA Psychology: Unit Test Mock Paper Walkthrough | IGCSE CCEA 心理学：单元测试模拟卷解析

This walkthrough takes you through a full CCEA-style IGCSE Psychology unit test mock paper, question by question. Each section gives the question, model answer, explanation of the mark scheme, and common mistakes so you can turn knowledge into marks.

本解析带你逐题完成一套 CCEA 风格的 IGCSE 心理学单元测试模拟卷。每个部分都提供题目、参考答案、评分标准说明和常见错误，帮助你真正把知识转化为分数。

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1. How to Use This Mock Paper | 模拟卷使用指南

Before you start, download or print the mock paper and attempt it under timed conditions. Give yourself about 45 minutes for a single unit test, then use the model answers in this walkthrough to mark your work.

开始前，请先下载或打印模拟卷，并在计时条件下完成。一个单元测试建议用时约 45 分钟，完成后用本解析中的参考答案自行评分。

The mark totals next to each question show how much detail is expected. For example, a 2-mark question usually needs two accurate points, while a 6-mark question requires knowledge, application, and some evaluation or elaboration.

每道题后的分值说明需要写多少细节。例如，2 分题通常需要两个准确要点，而 6 分题需要知识、应用以及一定的评价或拓展。

Use the common mistakes section as a checklist after marking. If you lost marks because you defined a term vaguely or forgot to link evidence back to the question, write that correction beside the question so the pattern becomes visible.

评分后把常见错误部分当作检查清单。如果你因为定义模糊或忘记把证据联系回题目而丢分，请在题目旁写下正确做法，这样错误模式会更清晰。

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2. Question 1: Independent and Dependent Variables | 第1题：自变量与因变量

Question: A psychologist investigates whether caffeine affects reaction time. Participants drink either regular coffee or decaffeinated coffee. Identify the independent variable and the dependent variable. [2 marks]

题目：一位心理学家研究咖啡因是否影响反应时间。参与者饮用普通咖啡或无咖啡因咖啡。请指出实验中的自变量和因变量。[2 分]

Model answer: The independent variable is the type of coffee, specifically whether it contains caffeine or is decaffeinated. The dependent variable is reaction time, which should be measured in milliseconds or seconds.

参考答案：自变量是咖啡类型，具体为是否含有咖啡因。因变量是反应时间，通常以毫秒或秒为单位进行测量。

Explanation: The independent variable is the factor the researcher manipulates or changes. The dependent variable is the factor that is measured to see if it has been affected by the independent variable.

解析：自变量是研究者操纵或改变的因素。因变量是被测量的因素，用来观察它是否受到自变量的影响。

Common error: Many students write ‘caffeine’ and ‘reaction time’ but miss the precision needed for the first mark. The IV must be expressed as the two conditions, such as ‘caffeinated coffee vs decaffeinated coffee’, not just the word ‘caffeine’.

常见错误：许多学生写 ‘咖啡因’ 和 ‘反应时间’，但第一分往往因不够准确而丢分。自变量必须写成两个条件，如 ‘含咖啡因咖啡与无咖啡因咖啡’，而不能只写 ‘咖啡因’。

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3. Question 2: Memory – Multi-Store Model | 第2题：记忆 – 多存储模型

Question: Explain one strength of the multi-store model of memory. [3 marks]

题目：解释多存储记忆模型的一个优点。[3 分]

Model answer: One strength is that the model is supported by the serial position effect. Glanzer and Cunitz found that when participants recalled a list of words, they remembered more words from the beginning and end of the list than from the middle.

参考答案：一个优点是该模型得到系列位置效应的支持。Glanzer 和 Cunitz 发现，当参与者回忆一组单词时，他们对列表开头和结尾的单词记忆要好于中间部分。

This supports the model because the primacy effect suggests early words are rehearsed and transferred to long-term memory, while the recency effect suggests the last words are still in short-term memory. Therefore, the evidence supports the existence of separate short-term and long-term stores.

这一证据支持该模型，因为首因效应说明前面的词被复述并转入了长时记忆，而近因效应说明最后的词仍停留在短时记忆中。因此，该证据支持短时记忆和长时记忆是独立存储系统的观点。

Common error: Students often state the study but do not explain how it supports the model. To gain the third mark, you must link the primacy and recency effects directly to the separate stores.

常见错误：学生经常写出研究内容，但没有解释它如何支持模型。要拿到第三分，必须把首因效应和近因效应直接联系到不同的记忆存储系统。

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4. Question 3: Development – Piaget’s Conservation | 第3题：发展 – 皮亚杰的守恒概念

Question: Define conservation and give one example of a conservation task. [2 marks]

题目：定义守恒概念，并给出一个守恒任务的例子。[2 分]

Model answer: Conservation is the understanding that the quantity of a substance remains the same even when its appearance or arrangement changes. For example, a child understands that the amount of liquid stays the same when poured from a tall, thin beaker into a short, wide beaker.

参考答案：守恒是指即使物体的外观或排列方式发生变化，其数量仍然保持不变的理解能力。例如，儿童理解当液体从高而窄的烧杯倒入矮而宽的烧杯时，液体的量保持不变。

Explanation: Piaget found that children in the pre-operational stage, usually below about 7 years of age, cannot conserve because they focus on one dimension, such as height, rather than considering height and width together.

解析：皮亚杰发现，前运算阶段的儿童，通常约 7 岁以下，不能完成守恒任务，因为他们只关注一个维度，例如高度，而不能同时考虑高度和宽度。

A child in the concrete operational stage can decentre and reverse the action mentally, so they understand conservation. This shows a shift from perception-based thinking to logical operations.

处于具体运算阶段的儿童能够去中心化并在头脑中逆转操作，因此能够理解守恒。这显示了从基于感知的思维向逻辑运算的转变。

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5. Question 4: Social Influence – Asch’s Conformity Study | 第4题：社会影响 – 阿希从众实验

Question: Outline Asch’s line judgement study and state one factor that affects conformity. [4 marks]

题目：概述阿希的线段判断实验，并说明一个影响从众的因素。[4 分]

Model answer: Asch asked male participants to judge which of three comparison lines matched a standard line. In a group, confederates deliberately gave the same wrong answer on critical trials. Asch found that participants conformed to the incorrect majority on about 37% of critical trials, and around 75% of participants conformed at least once.

参考答案：阿希要求男性参与者判断三条比较线中哪一条与标准线长度相同。在小组中，实验同谋在关键测试中故意给出同样的错误答案。阿希发现，参与者在约 37% 的关键测试中从众于错误多数，约 75% 的参与者至少从众过一次。

One factor that affects conformity is group size. Asch found that conformity increased when the majority had about three members, but larger majorities did not increase conformity much further.

一个影响从众的因素是群体规模。阿希发现，当多数派大约有三人时，从众行为会增加，但更大的多数派并不会显著进一步提高从众率。

Other acceptable factors include unanimity and task difficulty. If one confederate gives the correct answer, conformity drops sharply because social support reduces the pressure to agree with the majority.

其他可接受的因素包括一致性和任务难度。如果一个同谋给出正确答案，从众率会急剧下降，因为社会支持减少了个体必须同意多数派的压力。

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6. Question 5: Biological Psychology – Neurons and Synapses | 第5题：生物心理学 – 神经元与突触

Question: Describe how a message travels across a synapse. [4 marks]

题目：描述信息如何通过突触传递。[4 分]

Model answer: An action potential travels down the presynaptic neuron to the axon terminal. This causes vesicles to release neurotransmitters into the synaptic gap. The neurotransmitters diffuse across the gap and bind to receptor sites on the postsynaptic neuron. This triggers a new action potential if the threshold is reached.

参考答案：动作电位沿突触前神经元传递到轴突末梢。这使突触小泡释放神经递质到突触间隙。神经递质扩散通过间隙，并与突触后神经元上的受体位点结合。如果达到阈值，就会触发新的动作电位。

After transmission, neurotransmitters are removed from the receptor sites by reuptake or broken down by enzymes. This stops continuous stimulation and allows the synapse to return to its resting state.

传递完成后，神经递质通过再摄取或被酶分解而从受体位点移除。这会停止持续刺激，使突触恢复到静息状态。

Common error: Students often write that the electrical signal ‘jumps’ across the gap. In fact, transmission across the synapse is chemical, while transmission along the neuron is electrical. Distinguishing these two stages is essential for full marks.

常见错误：学生经常写电信号 ‘跳过’ 间隙。实际上，突触间的传递是化学过程，而神经元内的传导是电过程。区分这两个阶段是拿满分的关键。

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7. Question 6: Research Methods – Experimental Design | 第6题：研究方法 – 实验设计

Question: A researcher matches participants on IQ before allocating them to either a memory training group or a control group. Identify the experimental design and state one strength.[3 marks]

题目：一位研究者在分配参与者到记忆训练组或对照组之前，先按智商进行匹配。请指出实验设计类型，并说明一个优点。[3 分]

Model answer: This is a matched pairs design. One strength is that participant variables, such as intelligence, are more controlled, so individual differences are less likely to confound the results.

参考答案：这是配对组设计。一个优点是参与者变量（如智力）得到更严格的控制，因此个体差异不太可能对结果造成混淆。

A further strength is that each participant only takes part in one condition, so order effects such as practice or fatigue are avoided. This is different from repeated measures designs, where the same participants complete all conditions.

另一个优点是每个参与者只参加一个条件，因此避免了练习效应或疲劳等顺序效应。这与重复测量设计不同，后者需要同一批参与者完成所有条件。

Common error: Students confuse matched pairs with independent groups. The key detail is that participants are paired on a relevant characteristic before being split, so the design is not completely independent at the allocation stage.

常见错误：学生把配对组设计与独立组设计混淆。关键细节是参与者在分组前先按相关特征进行配对，因此在分配阶段并不完全独立。

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8. Question 7: Psychological Problems – Phobias and Systematic Desensitisation | 第7题：心理问题 – 恐惧症与系统脱敏疗法

Question: Describe two symptoms of a phobia and explain how systematic desensitisation could be used to treat it. [6 marks]

题目：描述恐惧症的两种症状，并解释系统脱敏疗法如何用于治疗恐惧症。[6 分]

Model answer: Two symptoms of a phobia are persistent, excessive fear of a specific object or situation, and avoidance of the feared stimulus, which can seriously disrupt normal daily life. Physical symptoms such as a racing heart, sweating, or panic attacks may also occur.

参考答案：恐惧症的两种症状是对特定物体或情境产生持续而过度的恐惧，以及对恐惧刺激的回避行为，这可能严重干扰正常日常生活。也可能出现心跳加快、出汗或惊恐发作等身体症状。

Systematic desensitisation begins with the patient learning relaxation techniques, such as deep breathing or progressive muscle relaxation. The therapist and patient then construct a fear hierarchy, starting with a mildly feared situation and ending with the most feared situation.

系统脱敏疗法首先让患者学习放松技术，如深呼吸或渐进式肌肉放松。然后，治疗师和患者共同建立恐惧等级表，从最轻微害怕的情境开始，直到最害怕的情境结束。

The patient is gradually exposed to each level of the hierarchy while staying relaxed. Because relaxation and fear are incompatible responses, the association between the feared stimulus and anxiety is weakened through counterconditioning.

患者在保持放松状态的同时，逐步暴露于等级表中的每个层级。由于放松与恐惧是不相容的反应，恐惧刺激与焦虑之间的联系会通过反条件作用逐渐减弱。

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9. Question 8: Extended Writing – Ethical Issues in Research | 第8题：扩展写作 – 研究中的伦理问题

Question: Discuss ethical issues in psychological research. Refer to one study you have learned about. [6 marks]

题目：讨论心理学研究中的伦理问题。请结合你学过的一项研究加以说明。[6 分]

Model answer: One ethical issue is deception. In Asch’s conformity study, participants were told they were taking part in a visual perception test, but the real aim was to measure conformity. This means fully informed consent was not possible because participants did not know the true purpose.

参考答案：一个伦理问题是欺骗。在阿希的从众实验中，参与者被告知他们参加的是视觉知觉测试，但真正的目的是测量从众行为。这意味着参与者无法给出完全知情的同意，因为他们不了解真实目的。

Another issue is protection from harm. Although Asch’s study was not physically harmful, participants may have felt embarrassed, confused, or stressed when they realised they had agreed with an obviously wrong majority. Psychologists must minimise psychological distress.

另一个问题是保护参与者免受伤害。虽然阿希的实验没有身体伤害，但当参与者意识到自己曾同意明显错误的多数意见时，可能会感到尴尬、困惑或压力。心理学家必须尽量减少心理困扰。

Researchers can deal with these issues by offering a full debriefing after the study, explaining the true aims and allowing participants to withdraw their data. In some cases, presumptive consent or retrospective consent can be used.

研究者可以通过在实验后提供完整的反馈解释来处理这些问题，说明真实目的并允许参与者撤回数据。在某些情况下，可以使用假设同意或事后同意。

For higher marks, avoid simply listing ethical issues. Explain why each issue matters and suggest one way it can be handled. This shows evaluation, not just knowledge.

要拿到更高分数，不要只列出伦理问题。要解释每个问题为什么重要，并提出一种处理方式。这体现的是评价能力，而不仅仅是知识。

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10. Marking, Grade Boundaries and Common Mistakes | 评分、等级分数线与常见错误

In a CCEA-style unit test, short answer questions usually reward precise definitions and accurate command words such as ‘identify’, ‘state’ and ‘outline’. Longer questions reward elaboration, application to a novel scenario, and evaluation.

在 CCEA 风格的单元测试中，简答题通常奖励准确的定义和对 ‘指出’、’陈述’、’概述’ 等指令词的准确回应。长答题则奖励拓展、对新情境的应用以及评价。

Mark band	What to include	Typical weaknesses
1-2 marks	Basic knowledge, a correct definition or one accurate point.	Vague wording, missing key term, no example.
3-4 marks	Clear explanation with accurate terminology and applied example.	Knowledge only, no link back to the question.
5-6 marks	Detailed explanation plus evaluation, strengths and limitations, or ethical considerations.	List-like answer, no evaluative judgement, no evidence.

Grade boundaries are set each session by the exam board, so treat any internal mock percentage as indicative only. A common target is to secure at least 70% of knowledge marks before trying to earn evaluation marks, because evaluation depends on accurate knowledge first.

等级分数线由考试局在每次考试后设定，因此校内模拟的百分比只能作为参考。一个常见策略是先稳定拿到至少 70% 的知识分，再争取评价分，因为评价必须建立在准确知识的基础上。

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11. Final Revision Checklist | 考前检查清单

Before you sit the unit test, check that you can define all key terms in your own words, not just recognise them. For every study, know the aim, method, main finding and one evaluation point.

参加单元测试前，请检查你是否能用自己的话定义所有关键术语，而不只是眼熟。对于每项研究，都要知道目的、方法、主要发现和一条评价点。

Practise command words. ‘Identify’ requires a short answer, ‘outline’ requires a brief description, and ‘discuss’ requires two sides of an argument with a conclusion. Underline command words in the exam to avoid writing too little or too much.

练习指令词。’Identify’ 需要简短回答，’outline’ 需要简要描述，’discuss’ 需要论证的正反两面并得出结论。考试时在指令词下划线，避免写得太少或太多。

Finally, manage your time by marking value. In a 45-minute paper, spend roughly one minute per mark and leave five minutes at the end to check definitions, spelling of key terms, and whether every part of the question has been answered.

最后，根据分值管理时间。如果考试时间为 45 分钟，大约每题每分平均用时一分钟，并留出五分钟检查定义、关键术语拼写以及每个问题是否都解答完整。

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