Year 7 Cambridge Psychology: Unit Test Mock Paper Analysis | 剑桥七年级心理学：单元测试模拟卷解析

📚 Year 7 Cambridge Psychology: Unit Test Mock Paper Analysis | 剑桥七年级心理学：单元测试模拟卷解析

This article provides a full walkthrough of a Year 7 Cambridge Psychology mock unit test. We will examine each question type, model correct answers, and highlight the reasoning behind them. The content focuses on the introductory topics of psychological research methods, key concepts, and ethical guidelines. Working through this mock paper will help students consolidate their understanding and gain confidence before the real assessment.

本文全面解析一份七年级剑桥心理学单元模拟测试卷。我们将逐一分析每种题型，示范正确答案，并阐明其背后的逻辑。内容聚焦于心理学研究方法、核心概念和伦理准则等导论主题。通过攻克这份模拟卷，学生可以巩固所学知识，并在正式评估前建立信心。

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1. Overview of the Mock Paper | 模拟卷总览

The mock paper is divided into three sections: Part A contains multiple-choice questions testing basic knowledge and definitions; Part B contains short-answer questions requiring description and explanation; Part C contains a data response question that asks students to interpret findings and evaluate research design. The total available marks reflect a standard 45-minute unit quiz.

模拟卷分为三个部分：A部分为选择题，考查基础知识和定义；B部分为简答题，要求进行描述和解释；C部分为数据应用题，要求学生解读结果并评估研究设计。总分数对应一次标准的45分钟单元小测。

Psychology is the scientific study of mind and behaviour. In Year 7, Cambridge learners are expected to grasp the fundamentals of what psychology involves, how research is conducted, and why ethics matter. This paper targets exactly those core competencies, so treat each explanation as a revision opportunity.

心理学是对心理和行为的科学研究。在七年级，剑桥学习者需要掌握心理学的基本内涵、研究如何开展以及伦理为何重要。这份试卷正是针对这些核心能力，因此请将每一条解析都视为复习的机会。

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2. Part A Multiple Choice: Questions 1 to 3 | A部分选择题：第1至3题

Question 1: Which statement best defines psychology?
A. The study of supernatural phenomena
B. The scientific study of mind and behaviour
C. The study of the physical brain only
D. The study of animal instincts

第1题：哪项陈述最能定义心理学？
A. 对超自然现象的研究
B. 对心理和行为的科学研究
C. 仅对物质大脑的研究
D. 对动物本能的研究

Answer: B. Psychology covers both internal mental processes (mind) and observable actions (behaviour). It uses scientific methods rather than relying on intuition. Options A and D are not scientific, and C is too narrow because psychologists study more than just the physical brain.

答案：B。心理学涵盖内部心理过程（心理）和可观察的行动（行为）。它采用科学方法而非依赖直觉。选项A和D不科学，C则过于狭隘，因为心理学家研究的不仅是物质大脑。

Question 2: A researcher wants to collect data on Year 7 students’ breakfast habits. Which research method is most practical?
A. Laboratory experiment
B. Naturalistic observation
C. Questionnaire
D. Case study

第2题：一位研究者想收集七年级学生早餐习惯的数据。哪种研究方法最实用？
A. 实验室实验
B. 自然观察
C. 问卷调查
D. 个案研究

Answer: C. A questionnaire (a type of survey) can be distributed to many students quickly and gathers self-reported data efficiently. Observation would require following students into their homes, which is impractical. Experiments manipulate variables, which is not needed here.

答案：C。问卷（一种调查方式）可以快速分发并高效收集自我报告数据。观察法需要进入学生家中，不具可行性。实验需要操控变量，而此题并不需要。

Question 3: What is the independent variable (IV) in an experiment?
A. The outcome that is measured
B. The variable the researcher manipulates
C. The variable kept the same for all participants
D. An uncontrolled factor that might affect results

第3题：实验中的自变量（IV）是什么？
A. 被测量的结果
B. 研究者操控的变量
C. 所有参与者保持不变的变量
D. 可能影响结果的未控制因素

Answer: B. The independent variable is deliberately changed by the experimenter to see its effect on the dependent variable (DV). A describes the DV, C describes controlled variables, and D describes confounding variables.

答案：B。自变量由实验者故意改变，以观察其对因变量的影响。A描述的是因变量，C描述的是控制变量，D描述的是混淆变量。

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3. Part A Multiple Choice: Questions 4 to 6 | A部分选择题：第4至6题

Question 4: Which of these is a directional hypothesis?
A. There will be a difference in attention between students who exercise and those who do not.
B. Students who exercise for 20 minutes will score significantly higher on a concentration test than those who do not exercise.
C. Exercise has no effect on concentration.
D. Concentration is influenced by many factors.

第4题：下列哪项是一个方向性假设？
A. 锻炼和不锻炼的学生在注意力上会有差异。
B. 锻炼20分钟的学生在注意力测试中得分显著高于不锻炼的学生。
C. 锻炼对注意力没有影响。
D. 注意力受许多因素影响。

Answer: B. A directional hypothesis states the expected direction of results (higher scores). Option A is non-directional (just says ‘a difference’), C is a null hypothesis, and D is too general.

答案：B。方向性假设陈述了结果的预期方向（得分更高）。选项A是非方向性的（只说“有差异”），C是零假设，D则过于笼统。

Question 5: In a study of memory, participants memorise 30 words. What is a good operationalised dependent variable?
A. The font size of the words
B. The number of words correctly recalled after 10 minutes
C. The time of day the test is given
D. Whether participants enjoy the task

第5题：在一项记忆研究中，参与者记忆30个单词。一个好的操作化因变量是什么？
A. 单词的字体大小
B. 10分钟后正确回忆的单词数量
C. 进行测试的时间
D. 参与者是否喜欢这项任务

Answer: B. Operationalisation means making variables measurable. The number of correctly recalled words is a precise, quantifiable measure. A and C are controls or independent variables; D is subjective and not easily quantified.

答案：B。操作化意味着使变量可测量。正确回忆的单词数量是一个精确、可量化的指标。A和C是控制变量或自变量；D是主观的，不易量化。

Question 6: Why is informed consent especially important when studying children?
A. Children are better at following instructions.
B. Children cannot legally give consent themselves; parents must consent.
C. Children enjoy being in studies.
D. It guarantees the results will be accurate.

第6题：为什么在研究儿童时知情同意尤其重要？
A. 儿童更善于遵守指示。
B. 儿童无法自行合法地给予同意，必须由父母同意。
C. 儿童喜欢参与研究。
D. 它能保证结果的准确性。

Answer: B. Legally and ethically, minors require a guardian’s permission. Consent does not guarantee accuracy (D). The enjoyment of children (C) is irrelevant to the ethical requirement.

答案：B。在法律和伦理上，未成年人需要监护人的许可。同意并不能保证准确性（D）。儿童是否喜欢（C）与伦理要求无关。

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4. Part A Multiple Choice: Questions 7 and 8 | A部分选择题：第7和第8题

Question 7: A psychologist hides behind a one-way mirror to watch how children interact in a classroom. The children are unaware. This is an example of:
A. Participant observation
B. Overt observation
C. Covert observation
D. Structured interview

第7题：一位心理学家躲在单向镜后观察儿童在教室里的互动。儿童并不知情。这是哪种方法的例子？
A. 参与性观察
B. 公开观察
C. 隐蔽观察
D. 结构化访谈

Answer: C. Covert observation means participants do not know they are being watched. Overt observation (B) involves awareness. Participant observation (A) means the researcher joins in. A structured interview (D) is a face-to-face questioning method.

答案：C。隐蔽观察意味着参与者不知道他们正在被观察。公开观察（B）涉及知情。参与性观察（A）意味着研究者加入其中。结构化访谈（D）是一种面对面的提问方法。

Question 8: Which brain structure plays a critical role in forming new memories?
A. Cerebellum
B. Hippocampus
C. Occipital lobe
D. Brainstem

第8题：哪个脑部结构在形成新记忆中起关键作用？
A. 小脑
B. 海马体
C. 枕叶
D. 脑干

Answer: B. The hippocampus, located in the temporal lobe, is essential for memory consolidation. The cerebellum controls balance and movement, the occipital lobe processes vision, and the brainstem regulates basic life functions.

答案：B。位于颞叶的海马体对记忆巩固至关重要。小脑控制平衡与运动，枕叶处理视觉信息，脑干调节基本生命功能。

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5. Part B Short Answer: Hypotheses and Variables | B部分简答题：假设与变量

Question 9: A student wants to investigate whether listening to music while studying affects test performance. Write a suitable null hypothesis and an alternative (experimental) hypothesis. Remember to operationalise your variables. (4 marks)

第9题：一名学生想探究学习时听音乐是否会影响考试表现。写出合适的零假设和备择（实验）假设。记得将变量操作化。（4分）

Model answer: Null hypothesis (H₀): There will be no significant difference in test scores between participants who study with music and those who study in silence. Alternative hypothesis (H₁): Participants who study in silence will achieve significantly higher scores on a 20-question science test than participants who study while listening to instrumental music at 60 decibels.

参考答案：零假设（H₀）：听音乐学习与安静学习的参与者在测试分数上没有显著差异。备择假设（H₁）：安静学习的参与者在一项20题的科学测试中得分显著高于听60分贝器乐学习的参与者。

Explanation: The null hypothesis always predicts no effect. The alternative hypothesis states a specific, testable prediction. Operationalisation is shown by naming the exact test (’20-question science test’) and the precise conditions (‘instrumental music at 60 decibels’). This makes the experiment replicable.

解析：零假设总是预测没有效应。备择假设则陈述一个具体、可检验的预测。操作化体现在明确指出了具体测试（“20题的科学测试”）和精确条件（“60分贝的器乐”）。这使得实验具有可重复性。

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6. Part B Short Answer: Research Design Evaluation | B部分简答题：研究设计评价

Question 10: Explain one strength and one limitation of using a laboratory experiment to investigate whether caffeine improves reaction time. (4 marks)

第10题：解释使用实验室实验来研究咖啡因是否能提高反应时间的一个优点和一个局限性。（4分）

Model answer: Strength: Laboratory experiments allow for high levels of control over extraneous variables. For instance, the researcher can control the amount of caffeine given, the time of day, and the type of reaction time task. This increases the internal validity, meaning we can be more confident that caffeine (the IV) is causing changes in reaction time (the DV).

参考答案（优点）：实验室实验可以对无关变量进行高度控制。例如，研究者可以控制咖啡因的剂量、测试时间以及反应时任务的类型。这提高了内部效度，意味着我们能更确信是咖啡因（自变量）引起了反应时（因变量）的变化。

Limitation: Laboratory experiments often lack ecological validity. Measuring reaction time by pressing a button on a computer in a quiet room does not reflect how reaction time works in real-life situations, such as catching a ball or braking a car while driving. Therefore, the findings may not generalise to everyday settings.

局限性：实验室实验通常缺乏生态效度。在一个安静房间里通过按电脑按钮来测量反应时，并不能反映反应时在现实生活中的运作方式，例如接球或开车时刹车。因此，研究结果可能无法推广到日常情境。

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7. Part B Short Answer: Ethical Considerations | B部分简答题：伦理考量

Question 11: Identify and describe two ethical issues a researcher must consider when conducting a study on stress in Year 7 students. Suggest how each issue could be addressed. (4 marks)

第11题：识别并描述研究者在针对七年级学生进行压力研究时必须考虑的两个伦理问题。建议如何解决每个问题。（4分）

Model answer: 1. Protection from harm: The study might induce psychological stress. The researcher should design tasks that are age-appropriate and include breaks. If any participant shows signs of distress, they should be allowed to withdraw immediately and be offered support.

参考答案：1. 免受伤害：研究可能会引发心理压力。研究者应设计符合该年龄段的任务并安排休息。若任何参与者出现痛苦迹象，应立即允许其退出并提供支持。

2. Confidentiality: Students’ personal stress scores could be sensitive. The researcher must ensure data is anonymised by using participant numbers instead of names. Data should be stored securely and not shared with other teachers or students without explicit parental consent.

2. 保密性：学生的个人压力分数可能是敏感的。研究者必须通过使用参与者编号而非姓名来确保数据匿名。数据应安全存储，未经家长明确同意不得与其他教师或学生分享。

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8. Part C Data Response: Interpreting a Study | C部分数据应用题：解读一项研究

Scenario: A researcher asked 30 Year 7 students to complete a puzzle in bright light (Group A), and 30 different Year 7 students to complete the same puzzle in dim light (Group B). The mean time to complete the puzzle was 8.2 minutes for Group A and 9.6 minutes for Group B.

情境：一位研究者要求30名七年级学生在明亮光线下完成一个拼图（A组），另外30名不同的七年级学生在昏暗光线下完成同一个拼图（B组）。完成拼图平均用时A组为8.2分钟，B组为9.6分钟。

a) Identify the independent variable and the dependent variable. (2 marks)
a) 识别自变量和因变量。（2分）
Answer: IV: Lighting condition (bright vs dim). DV: Time taken to complete the puzzle (in minutes).

答案：自变量：光线条件（明亮与昏暗）。因变量：完成拼图所用时间（以分钟计）。

b) What do the results suggest? (2 marks)
b) 结果说明了什么？（2分）
Answer: The results suggest that brighter light may improve puzzle-solving speed, as the mean completion time was 1.4 minutes faster in the bright light condition. However, the conclusion is tentative without knowing whether the difference is statistically significant.

答案：结果表明更明亮的光线可能会提高解谜速度，因为明亮光线下平均完成时间快了1.4分钟。然而，由于不知道这一差异是否具有统计显著性，结论只是试探性的。

c) Explain one weakness of using an independent groups design in this study. (2 marks)
c) 解释本研究中采用独立组设计的一个缺点。（2分）
Answer: A key weakness is participant variables. Because different people are in each group, individual differences in puzzle-solving ability, tiredness, or motivation could act as confounding variables. This lowers the internal validity, as the researcher cannot be sure the IV alone caused the difference.

答案：一个主要缺点是参与者变量。因为每组是不同的人，个体在解谜能力、疲劳程度或动机上的差异可能会成为混淆变量。这降低了内部效度，因为研究者无法确定仅是自变量导致了差异。

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9. Common Mistakes and How to Fix Them | 常见错误与纠正方法

Mistake 1:

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