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MMLU / Statistical regression is a potential threat to a study’s internal validity…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Statistical regression is a potential threat to a study’s internal validity when:

choices

  1. there is a statistically different number of participants in the study’s treatment groups.
  2. there is a statistically significant difference in the number of participants who drop out of the different treatment groups during the course of the study.
  3. participants are selected for inclusion in the study because of their extremely high or low scores on the pretest.
  4. the researcher is unable to randomly assign participants to the different treatment groups.

subject

professional_psychology

Discussion

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Source and history

task_id
57c66dad-32c8-592d-ba05-d1c27ecf4093
task_key
all--test--57c66dad-32c8-592d-ba05-d1c27ecf4093
task_revision_id
1
config / split
all / test

Official source

initial import