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Case Study

Based on standard practices for participant confidentiality, diagnose the problem with the lead researcher's plan and recommend an alternative procedure to securely link the Day 1 and Day 2 data.

Case context: A research team is conducting a two-part study on sleep habits. On Day 1, participants fill out a demographic questionnaire. On Day 2, the same participants return to complete a sleep diary response sheet. The lead researcher initially plans to have participants write their full names on both documents so their Day 1 and Day 2 responses can be accurately matched during data entry.

Question: Based on standard practices for participant confidentiality, diagnose the problem with the lead researcher's plan and recommend an alternative procedure to securely link the Day 1 and Day 2 data.

Sample answer: The problem is that requiring participants to write their full names on the questionnaires and response sheets compromises their confidentiality and anonymity. Instead, the researcher should assign a unique participant identification number to each individual as they are tested. This same number should be recorded on both the Day 1 demographic questionnaire and the Day 2 sleep diary, allowing the responses to be securely organized and linked without exposing personal identities.

Key points:

  • Writing names on data sheets violates confidentiality and anonymity.
  • A unique participant identification number should be assigned to each individual.
  • The same identification number must be recorded on both the Day 1 questionnaire and Day 2 response sheet.
  • Using identification numbers allows data from multiple sessions to be linked without exposing personal identity.

Rubric: Award points for correctly identifying that using names violates confidentiality and proposing the use of unique participant identification numbers across both documents.

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Updated 2026-05-27

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KPU

Research Methods in Psychology - 4th American Edition @ KPU

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