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MMLU / Javier wants to study the effects on achievement of taking a course in chemistry…

Problem

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question

Javier wants to study the effects on achievement of taking a course in chemistry in the afternoon, rather than in the morning. A teacher has chemistry classes with the same number of students at 8:30 A.M. and 1:00 P.M., and volunteers to participate with her classes. A major problem in this study would be

choices

  1. poor replication
  2. lack of a hypothesis
  3. confounding variables
  4. difficulty in obtaining informed consent

subject

high_school_psychology

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