A Level Psychology OCR Practice Exam

Why is there a lack of generalisability in Milgram’s study?

1. Participants were from various ethnic backgrounds

2. All participants were young women

3. Participants were exclusively white males

4. Participants were from around the world

The correct answer is: Participants were exclusively white males

The lack of generalisability in Milgram's study primarily stems from the fact that the participants were exclusively white males. This limited demographic restricts the ability to apply the findings broadly to the overall population, as it does not account for differences in compliance and behavior that may exist across genders, ethnicities, and age groups. In research, a more diverse sample can lead to findings that are more representative of a wider audience, and in this case, the homogeneity of the sample reduces the external validity of the study’s conclusions. While the other options mention diversity or inclusion of different backgrounds, it is the singular demographic of white males in Milgram's participant group that most significantly impacts the study's generalisability.