A threat to internal validity that occurs when information about the experiment is communicated between the different groups of participants is known as
A) expectancy effects.
B) contamination.
C) novelty effects.
D) the Hawthorne effect.

Question

Quizplus · Accepted Answer

Contamination occurs when information about the experiment is communicated between the different groups of participants, and this can affect the outcome of the study by introducing a confounding variable. Other options (A) expectancy effects, (C) novelty effects, and (D) the Hawthorne effect are all related to participants' behavior or performance and not specific to communication between groups of participants.

A Threat to Internal Validity That Occurs When Information About