If researchers unintentionally manipulate another variable or construct in a study, then _____ has also been introduced into the experiment.
A) power
B) a placebo
C) post-hoc
D) a confound

Question

Quizplus · Accepted Answer

A confound is introduced into an experiment when researchers unintentionally manipulate another variable or construct, which can potentially affect the outcome of the study and make it difficult to determine the cause of the observed effects.

If Researchers Unintentionally Manipulate Another Variable or Construct in a Study