📚 Year 10 SQA Psychology: High-Frequency Topics and Common Pitfalls Analysis | Year 10 SQA 心理学：高频考点与易错题分析
This guide targets the most frequently examined areas in the SQA National 5 Psychology course for Year 10 learners, while highlighting the common mistakes that cost marks. By focusing on memory models, sleep stages, social influence, research methods, and ethical principles, you will build a robust understanding of both classic studies and core skills. Each section pairs an English explanation with its Chinese translation to support bilingual revision.
本指南针对 Year 10 学生在 SQA National 5 心理学课程中最高频出现的考点，同时重点分析那些容易丢分的典型错误。通过聚焦记忆模型、睡眠阶段、社会影响、研究方法与伦理原则，你将建立起对经典研究和核心技能的扎实理解。每一节都将英文讲解与中文翻译配对呈现，便于双语复习。
1. Multistore Model of Memory (Atkinson & Shiffrin, 1968) | 记忆的多存储模型
). Sensory memory holds incoming information for a fraction of a second. Through selective attention, some of that information passes into STM, which has a limited capacity of 7±2 chunks and a duration of about 18– transfer STM information into LTM, which has potentially unlimited capacity and duration.
多存储模型认为记忆由三个独立的存储组成：感觉记忆、短时记忆和长时记忆。感觉记忆在不到一秒内保存输入的信息。通过选择性注意，其中一部分信息进入短时记忆，短时记忆的容量有限，约为7±2个组块，不经复述的持续时间大约为18–30秒。维持性复述可以将短时记忆的信息转入长时记忆，后者在容量和持续时间上几乎是无限的。
Common pitfall: s duration. Always specify that capacity refers to how much can be held, while duration refers to how long it lasts without rehearsal. In exam questions, if you are asked to describe STM, you must state both features and link them to rehearsal.
常见陷阱：很多学生混淆短时记忆的容量（神奇数字7±2）与其持续时间。一定要明确容量是指能容纳多少信息，而持续时间是指不加复述的情况下能保持多久。考试中如果要求描述短时记忆，必须同时陈述这两个特征并将它们与复述联系起来。
2. Working Memory Model (Baddeley & Hitch, 1974) | 工作记忆模型
The working memory model replaces the idea of a single STM with a multi-component system. It features a central executive that directs attention and coordinates two slave systems: the phonological loop, which processes auditory and verbal information, and the visuospatial sketchpad, which handles visual and spatial data. A later addition, the episodic buffer, integrates information across domains and links working memory to LTM.
工作记忆模型用一个多成分系统取代了单一的短时记忆概念。该模型包含一个中央执行系统，负责引导注意并协调两个从属系统：语音回路负责处理听觉和言语信息，视空间画板处理视觉与空间数据。后来加入的情境缓冲器则整合跨领域信息并将工作记忆与长时记忆连接起来。
Common pitfall: When comparing the models, students sometimes say the working memory model “has no storage.” In reality, the slave systems do store information temporarily. Also, be careful not to describe the central executive as a memory store—it is a control system. A high-frequency exam question asks you to explain why the working memory model is a better explanation of dual-task studies than the multistore model.
常见陷阱：在比较两种模型时，学生有时会说工作记忆模型“没有存储”。实际上，从属系统确实会暂时存储信息。此外，注意不要把中央执行系统描述成一个记忆仓库——它是一种控制系统。一个高频考题是要求解释为什么工作记忆模型比多存储模型更好地解释了双任务研究。
3. Sleep Stages and Brain Waves | 睡眠阶段与脑电波
Human sleep cycles through NREM stages 1–3 and REM sleep approximately every 90 minutes. Stage 1 is light sleep with theta waves; stage 2 features sleep spindles and K-complexes; stage 3 is deep, slow-wave sleep dominated by delta waves. REM sleep is characterised by rapid eye movements, near-paralysis of the body (atonia), and brain activity resembling wakefulness—primarily beta waves. Dreaming occurs most vividly during REM, though it can also happen in NREM.
人类睡眠大约每90分钟循环经历NREM 1至3期和REM睡眠。第1期为浅睡，出现θ波；第2期以睡眠纺锤波和K-复合波为特征；第3期是深度慢波睡眠，δ波占主导。REM睡眠的特点是快速眼动、身体近乎瘫痪（肌张力消失）以及类似清醒状态的大脑活动——以β波为主。梦境最生动地出现在REM期，但在NREM期也可能出现。
Common pitfall: The most typical exam error is mixing up the brainwave types: theta (3.5–7.5 Hz) occurs in stage 1, delta (0.5–3 Hz) dominates stage 3, and beta (12–30 Hz) appears in REM. Many candidates incorrectly claim alpha waves are present during deep sleep. Also, do not state that all dreaming occurs in REM—research shows NREM dreams exist, though they are less narrative.
常见陷阱：最典型的考试错误是混淆脑电波类型：θ波（3.5–7.5 Hz）出现在第1期，δ波（0.5–3 Hz）主导第3期，β波（12–30 Hz）出现在REM期。许多考生错误地认为深度睡眠时出现α波。此外，不要声称所有梦境都发生在REM期——研究表明NREM期也存在梦，只是叙事性较弱。
Sleep Stage Summary
| Stage | Brain Waves | Key Features |
| NREM 1 | Theta (3.5–7.5 Hz) | Light sleep, easily woken |
| NREM 2 | Theta with spindles/K-complexes | Body temperature drops, heart rate slows |
| NREM 3 | Delta (0.5–3 Hz) | Deep sleep, difficult to wake, growth hormone released |
| REM | Beta (12–30 Hz) | Vivid dreaming, atonia, rapid eye movements |
4. Conformity: Asch's Experiment (1951, 1955) | 从众：阿希实验
Solomon Asch investigated conformity by asking participants to match the length of a standard line to three comparison lines in a group of confederates. On critical trials, confederates unanimously chose the wrong line. About 37% of responses were conforming errors, and 75% of participants conformed at least once. Asch identified three key reasons for conformity: normative social influence (desire to fit in), informational social influence (believing others are correct), and group size.
所罗门·阿希通过让参与者在由假被试组成的群体中判断线段长度来研究从众行为。在关键试次中，假被试一致选择了错误答案。大约37%的回应是从众性错误，75%的参与者至少从众过一次。阿希指出了从众的三个关键原因：规范性社会影响（渴望融入群体）、信息性社会影响（相信他人是正确的）以及群体规模。
Common pitfall: In SQA mark schemes, students must distinguish between conformity (going along with a group) and obedience (following a direct order). A classic error is using Asch to explain obedience, or claiming that Asch’s participants were ordered to conform. Also, when explaining variables affecting conformity, remember that one confederate breaking unanimity sharply reduces conformity rates.
常见陷阱：在SQA评分方案中，学生必须区分从众（随大流）与服从（遵从直接命令）。一个经典错误是用阿希实验解释服从，或声称阿希的参与者是被命令去从众的。此外，在解释影响从众的变量时，要记住只要有一名假被试打破一致性，从众率就会大幅下降。
5. Obedience: Milgram's Experiment (1963) | 服从：米尔格拉姆实验
Stanley Milgram’s obedience study examined whether ordinary people would obey an authority figure who instructed them to deliver electric shocks to a learner. Despite the learner’s protests (pre-recorded), 65% of participants administered the maximum 450-volt shock. The experiment demonstrated the power of situational factors: the proximity of the authority figure, the prestige of the setting (Yale University), and the incremental nature of the demands all increased obedience.
斯坦利·米尔格拉姆的服从研究考察了普通人是否会服从权威人物的指令，对一名学习者施加电击。尽管学习者表现出痛苦（预先录制），仍有65%的参与者施加了最高450伏的电击。实验展示了情境因素的强大作用：权威人物的接近性、场景的声望（耶鲁大学）以及要求的渐增性都增加了服从行为。
Common pitfall: Students often forget to mention that the shocks were fake and the learner was a confederate—this is vital for ethics answers. Another typical mistake is describing Milgram’s study as an example of conformity rather than obedience. When discussing ethical issues, always link your points to specific guidelines: deception, protection from harm, right to withdraw, and informed consent.
常见陷阱：学生经常忘记提及电击是假的，学习者其实是假被试——这在回答伦理问题时至关重要。另一个典型错误是把米尔格拉姆的研究描述为从众的例子而不是服从。在讨论伦理问题时，一定要将你的论点与具体指导原则联系起来：欺骗、免受伤害、退出权和知情同意。
6. Prejudice and Stereotypes | 偏见与刻板印象
Prejudice is a negative attitude towards an individual based solely on their membership of a social group. Stereotypes are oversimplified, fixed beliefs about a group. In SQA Psychology, you may study explanations of prejudice such as the realistic conflict theory (Sherif's Robbers Cave experiment) and social identity theory (Tajfel). Sherif showed that competition for scarce resources creates intergroup hostility, which can be reduced by superordinate goals. Tajfel demonstrated that even minimal group membership (like preferring one painter over another) can produce in-group favouritism and out-group discrimination.
偏见是一种仅仅基于个体所属社会群体而产生的消极态度。刻板印象是对某个群体过于简化且固定不变的信念。在SQA心理学中，你可能学习过偏见的解释，如现实冲突理论（谢里夫的罗伯斯山洞实验）和社会认同理论（塔杰费尔）。谢里夫表明，对稀缺资源的竞争会造成群际敌对，而超级目标可以减少这种敌对。塔杰费尔则证明，即使是最微小的群体成员身份（例如偏爱某一位画家）也能产生内群偏爱和外群歧视。
Common pitfall: Many candidates confuse prejudice with discrimination. Prejudice is the attitude; discrimination is the behaviour. In extended-response questions, you must define both clearly and identify whether a study is measuring prejudice (e.g., attitude questionnaires) or discrimination (e.g., allocation of rewards). Also, be precise: the realistic conflict theory explains intergroup conflict, not all forms of prejudice.
常见陷阱：很多考生混淆偏见与歧视。偏见是态度；歧视是行为。在扩展回答题中，你必须清晰地定义两者，并判断某项研究是在测量偏见（如态度问卷）还是歧视（如分配奖励）。此外要准确：现实冲突理论解释的是群际冲突，而不是所有形式的偏见。
7. Research Design: Independent Variable and Dependent Variable | 研究设计：自变量与因变量
In an experiment, the independent variable (IV) is the factor that the researcher manipulates or changes to see if it has an effect. The dependent variable (DV) is the factor that is measured—it is the outcome. For example, in a study on whether caffeine affects memory, the IV is the amount of caffeine (e.g., 0 mg vs. 200 mg), and the DV is the number of words correctly recalled. Operationalising variables means defining them clearly and measurably.
在实验中，自变量是研究者操纵或改变以观察其效果的因素。因变量是被测量的因素，即实验结果。例如，在一项研究咖啡因是否影响记忆的实验中，自变量是咖啡因的剂量（如0毫克对比200毫克），因变量是正确回忆的单词数量。操作化变量意味着用清晰且可测量的方式定义变量。
Common pitfall: The most frequent error on methodology questions is swapping the IV and DV. A helpful check: “I change the IV; I measure the DV.” Also, students often fail to operationalise properly—stating “age” as an IV without specifying the age groups (e.g., 15–18 vs. 60–70) loses marks. Always give both levels of the IV.
常见陷阱：在方法题中最常见的错误是把自变量和因变量搞反。一个有用的检查方法是：“我改变的是自变量，我测量的是因变量。”此外，学生常常未能正确操作化——例如说“年龄”是自变量，却不明确指出年龄段（如15–18岁对比60–70岁），这样会丢分。务必给出自变量的两个水平。
Example operationalisation:
IV: Time of day (morning 08:00–10:00 vs. evening 20:00–22:00)
DV: Score on a 20-word free-recall test
8. Experimental Methods and Validity | 实验类型与效度
SQA requires you to know the differences between laboratory, field, and natural/quasi-experiments. A laboratory experiment takes place in a controlled, artificial environment where the researcher manipulates the IV. It offers high internal validity because extraneous variables are controlled, but may lack ecological validity. A field experiment conducts the manipulation in a real-world setting, boosting ecological validity but reducing control. A natural experiment takes advantage of a naturally occurring IV (e.g., before and after a natural disaster) and the researcher does not manipulate it directly, making causal conclusions more tentative.
SQA要求你了解实验室实验、现场实验和自然/准实验之间的区别。实验室实验在受控的人工环境中进行，由研究者操纵自变量。它由于控制了额外变量而具有较高的内部效度，但可能缺乏生态效度。现场实验在真实世界场景中进行操纵，从而提升生态效度，但降低了对变量的控制。自然实验则利用自然发生的自变量（例如自然灾害前后），研究者不直接操纵变量，这使得因果结论更为谨慎。
Common pitfall: In the exam, students frequently confuse field and natural experiments. Remember: in a field experiment, the researcher still manipulates the IV in a natural setting. In a natural experiment, the IV varies naturally (e.g., gender, being in a flood zone) and is not manipulated. Also, when evaluating validity, always say what type—internal, ecological, or temporal—and justify your claim with reference to the procedure.
常见陷阱：考试中学生经常混淆现场实验与自然实验。记住：在现场实验中，研究者仍然在自然环境中操纵自变量。而在自然实验中，自变量是自然变化的（例如性别、身处洪水区），没有被操纵。此外，在评价效度时，要说明是哪一种效度——内部效度、生态效度还是时间效度——并引用实验程序来论证你的观点。
9. Ethical Principles and BPS Guidelines | 伦理原则与BPS指南
The British Psychological Society (BPS) sets ethical guidelines for research with human participants. Key principles include informed consent (participants must know the nature of the research), deception (which should be avoided and must be followed by a thorough debrief), protection from physical and psychological harm, the right to withdraw at any time, and confidentiality of data. When a study involves children, additional consent from parents or guardians is required.
英国心理学会为涉及人类参与者的研究制定了伦理指南。关键原则包括知情同意（参与者必须了解研究的性质）、欺骗（应尽量避免，若使用必须在事后进行详细的情况说明）、免受身心伤害、随时退出的权利以及数据保密。当研究涉及儿童时，还需要获得父母或监护人的额外同意。
Common pitfall: A very common mistake is simply naming the ethical principle without applying it to the study. For full marks, you must state the principle, describe how it was breached (or upheld), and mention a possible solution. For example: “Protection from harm was breached because participants in the sleep deprivation study reported severe headaches (harm). This could be addressed by screening participants for health risks and offering psychological support.” Never just say “it was unethical.”
常见陷阱：一个非常普遍的错误是仅仅说出伦理原则的名称却不将其应用于研究。要拿到满分，你必须陈述原则，说明它是如何被违反（或遵守）的，并提出一个可能的解决方案。例如：“免受伤害原则被违反，因为睡眠剥夺研究中的参与者报告了严重头痛（伤害）。可以通过筛查参与者的健康风险并提供心理支持来解决。”千万不要只说“这是不道德的”。
10. Data Interpretation: Correlation vs. Causation | 数据解释：相关与因果
ncreases), negative (as one increases, the other decreases), or zero (no relationship). The strength is expressed by a correlation coefficient ranging from – rove that one variable causes the other, because there may be a third, confounding variable involved.
相关表明两个协变量之间的关系。它可以是正相关（一个增加，另一个也增加）、负相关（一个增加，另一个减少）或零相关（没有关系）。相关强度用相关系数表示，范围从–1到+1。关键的是，相关不代表因果关系。即使是一个强相关（如r = +0.85），也不能证明一个变量导致了另一个变量，因为可能涉及第三个混淆变量。
Common pitfall: In SQA exam answers, using causal language when describing correlational findings—such as “advertising causes aggression” based on a correlation between TV viewing and aggressive behaviour—is a major error. Always use phrases like “there is a positive correlation” or “is associated with.” Additionally, when asked to evaluate a correlational study, point out the lack of manipulation and the directionality problem.
常见陷阱：在SQA考试答案中，当描述相关发现时使用因果语言——比如基于看电视与攻击行为之间的相关就声称“广告导致攻击行为”——这是一个重大错误。务必使用“存在正相关”或“与……有关联”之类的表述。此外，当被要求评价一项相关研究时，要指出缺乏操纵以及方向性问题。
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