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Based on the concept of using an existing measure, list and briefly describe the three primary advantages for researchers when they choose to use an established instrument (such as a published questionnaire or standardized scale) rather than developing a new one.

Question: Based on the concept of using an existing measure, list and briefly describe the three primary advantages for researchers when they choose to use an established instrument (such as a published questionnaire or standardized scale) rather than developing a new one.

Sample answer: The three primary advantages are: 1. It saves time and effort that would otherwise be required to develop a new instrument. 2. Existing measures often come with pre-established evidence of reliability and validity. 3. Using established tools allows researchers to more easily compare and integrate their findings with the broader scientific literature.

Key points:

  • Saves time and effort compared to developing a new instrument.
  • Provides pre-established evidence of reliability and validity.
  • Enables easier comparison and integration of findings with the broader scientific literature.

Rubric: Grading Rubric: - 3 points: Clearly lists all three advantages (saving time/effort, existing reliability/validity evidence, and ease of comparison/integration with literature). - 2 points: Mentions two of the advantages correctly. - 1 point: Mentions only one advantage correctly. - 0 points: None of the advantages are correctly identified.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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