A Level Psychology OCR Practice Exam

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What sample size did Raine et al. use in their research?

  1. 20 offenders and 20 controls

  2. 41 offenders and 41 controls

  3. 100 offenders and 100 controls

  4. 60 offenders and 60 controls

The correct answer is: 41 offenders and 41 controls

Raine et al. conducted research that included a sample of 41 offenders and 41 controls. This balanced approach allows for a direct comparison between the two groups, providing valuable insights into any differences in brain structure and functioning, as measured using brain imaging techniques. The equal number of participants in each group contributes to the robustness of the findings, making it easier to draw conclusions about the potential neural correlates of violent behavior. Additionally, having 41 participants in each group offers a sufficiently large sample to detect any significant effects, which is crucial in psychological research.

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