Short Answer

Imagine a researcher conducts a study on students enrolled in a single mandatory cohort class where everyone is a Chemistry major. If the researcher measures both student height and chosen major, apply the principles from the text to explain in one to three sentences how the status of 'chosen major' changes compared to a typical diverse university class.

Question: Imagine a researcher conducts a study on students enrolled in a single mandatory cohort class where everyone is a Chemistry major. If the researcher measures both student height and chosen major, apply the principles from the text to explain in one to three sentences how the status of 'chosen major' changes compared to a typical diverse university class.

Sample answer: In a diverse class, chosen major functions as a variable because students have declared different fields of study. In this chemistry cohort, since all students have the same major, 'chosen major' ceases to be a variable and instead functions as a constant because it no longer varies across individuals.

Key points:

  • In a diverse class, chosen major is a variable because students have declared different majors.
  • In the cohort where all students have the same major, there is no variation across individuals.
  • Therefore, the status of chosen major changes from a variable to a constant in this study.

Rubric: The response must apply the rule that a variable must vary across individuals. It must explain that because all students in this cohort share the same major (Chemistry), 'chosen major' does not vary and therefore functions as a constant instead of a variable, unlike in a diverse class.

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Updated 2026-05-27

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Research Methods in Psychology - 4th American Edition @ KPU

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