Can psychological research that deceives or distresses participants ever be justified, and how should ethics be balanced against scientific value?
Controversy: ethics in psychological research. The conflict between scientific value and participant welfare, with arguments and examples (Milgram, Zimbardo), the role of ethical guidelines and cost-benefit analysis, and a judgement.
An Eduqas A-Level Psychology answer to the controversy of ethics in psychological research. Covers the conflict between scientific value and participant welfare, examples such as Milgram and Zimbardo, ethical guidelines and cost-benefit analysis, and how to reach a judgement on the Implications in the Real World paper.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
Ethics in psychological research is one of the controversies in Component 3. You must outline the conflict between scientific value and participant welfare, use examples, explain the role of guidelines and cost-benefit analysis, and reach a judgement.
The answer
What the controversy is
Arguments and examples
- Value of the findings. Studies that breached ethics (Milgram on obedience, Zimbardo on roles) gave major insights into obedience, conformity and the abuse of power that arguably could not have been obtained otherwise.
- Cost to participants. These same studies deceived participants, caused distress, and (in Zimbardo's case) compromised the right to withdraw, violating rights and dignity.
- Public trust. Unethical research can damage trust in psychology as a profession.
- Safeguards. Guidelines, ethics committees, informed consent, debriefing and the right to withdraw aim to allow valuable research while protecting participants.
Reaching a judgement
A balanced conclusion is that ethical research is possible and necessary, achieved through guidelines, committees and a cost-benefit weighing of value against harm in advance (not by hindsight). Harm or deception is only justifiable when the benefits clearly outweigh the costs and no alternative exists, with full safeguards.
Examples in context
Example 1. Milgram and deception. Milgram deceived participants about the shocks and caused visible distress, yet revealed how ordinary people obey authority. This is the classic case where scientific value and participant welfare collide, the heart of the controversy.
Example 2. Why guidelines emerged. Such studies prompted the development of strict ethical codes (consent, the right to withdraw, protection from harm, debriefing). This shows the controversy has a real-world resolution: regulated, cost-benefit-assessed research.
Try this
Q1. State the central conflict in the ethics controversy. [2 marks]
- Cue. The conflict between the scientific value of research and the welfare and rights of participants (who may be harmed or deceived).
Q2. Give one argument that unethical research cannot be justified by its findings. [2 marks]
- Cue. Harming or deceiving participants violates their rights and dignity, can cause lasting distress, and valuable findings do not retrospectively justify the harm.
Q3. Explain how a cost-benefit analysis is used. [2 marks]
- Cue. An ethics committee weighs the likely scientific and social benefits against the potential costs to participants in advance, approving research only when benefits outweigh harms and no alternative exists.
Exam-style practice questions
Practice questions written in the style of WJEC Eduqas exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Eduqas 201912 marksDiscuss the controversy surrounding ethics in psychological research. [12 marks]Show worked answer →
A discussion item (AO1 plus AO3) reaching a judgement.
A strong answer outlines the controversy (research can advance knowledge but may harm or deceive participants, creating a conflict between scientific value and welfare), then develops both sides with examples: studies such as Milgram (deception and distress) and Zimbardo (harm and loss of the right to withdraw) produced major insights but breached ethics; against this, ethical guidelines (the BPS code), ethics committees and cost-benefit analysis aim to protect participants while allowing valuable research.
It then reaches a judgement: ethical research is possible and necessary, achieved through guidelines, committees and a cost-benefit weighing of value against harm, with safeguards (consent, debriefing, the right to withdraw); harm or deception is only justifiable when benefits clearly outweigh costs and no alternative exists.
Markers reward balanced development with examples and a justified conclusion.
Eduqas 202110 marksOutline arguments for and against the view that some unethical research can be justified by its findings. [10 marks]Show worked answer →
An item testing both sides (AO1/AO3).
For: some classic studies that breached ethics (Milgram on obedience, Zimbardo on roles) produced findings of great social value that could not have been obtained otherwise, informing our understanding of obedience, conformity and abuse of power.
Against: harming or deceiving participants violates their rights and dignity, can cause lasting distress, and damages public trust in psychology; valuable findings do not retrospectively justify the harm, and modern guidelines exist precisely to prevent it.
A balanced answer notes the cost-benefit principle: research must weigh value against harm in advance, via ethics committees, rather than judging ethics by hindsight. Markers reward developed points on both sides.
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Sources & how we know this
- Eduqas GCE A Level in Psychology (A290) specification — Eduqas (2015)