A Level Psychology OCR Practice Exam

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Prepare for the A Level Psychology OCR Exam with confidence. Engage with in-depth flashcards and multiple-choice questions that provide hints and thorough explanations. Equip yourself to excel on your exam!

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How many participants were involved in the Sperry et al (1968) study?

5 participants
11 participants
15 participants
20 participants

The correct answer is: 11 participants

The correct answer reflects that the study conducted by Sperry et al. in 1968 involved 11 participants. This groundbreaking research focused on patients who had undergone hemispherectomy, a surgical procedure where the corpus callosum connecting the two hemispheres of the brain is severed. The small sample size of 11 is significant in psychological research, particularly in studies of brain function and behavior, as it allows for in-depth case studies and detailed observations of atypical neurological function. The participants provided valuable insights into the functions of the left and right hemispheres of the brain, contributing to our understanding of lateralization of brain function. Thus, the choice of 11 participants is supported by the specific characteristics of the study's focus and the research context.