Case Study

Diagnose the scientific consequences of Sarah's failure to document the experimenter's name and the participants' spontaneous questions. Explain why these specific record-keeping omissions hinder the team's ability to analyze and interpret their experimental data.

Case context: A research team is conducting a psychological experiment comparing two reading comprehension techniques. Prior to testing, they prepare a written sequence of conditions. During the sessions, one of the experimenters, Sarah, neglects to record her name on the logs for her sessions and fails to write down that several participants asked for clarification on the instructions. During final data analysis, the team notices an unexpected spike in error rates across several sessions but cannot determine which sessions Sarah ran or why those participants struggled.

Question: Diagnose the scientific consequences of Sarah's failure to document the experimenter's name and the participants' spontaneous questions. Explain why these specific record-keeping omissions hinder the team's ability to analyze and interpret their experimental data.

Sample answer: By omitting the experimenter's name, the team cannot statistically analyze whether the variation in error rates was caused by different experimenters. By failing to document the participants' spontaneous questions, the team cannot diagnose whether participant confusion about the instructions contributed to the high error rates, preventing them from resolving inquiries about these specific sessions.

Key points:

  • Recording experimenter names enables statistical analysis of variations caused by different experimenters.
  • Documenting spontaneous questions helps identify participant confusion that could explain anomalous data.
  • Detailed logs allow researchers to address future inquiries about specific anomalous sessions.

Rubric: The response must explain that failing to record the experimenter's name prevents statistical analysis of experimenter effects, and failing to document spontaneous questions prevents identifying participant confusion or answering questions about specific sessions.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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