_____ is a threat to internal validity due to an external event that can potentially influence participants' behavior during an experiment.
A) Maturation
B) History
C) Instrumentation
D) Attrition

Question

Quizplus · Accepted Answer

History refers to events that occur outside the experiment but during the course of the study, which may affect participants' responses or behaviors, thus posing a threat to the internal validity of the experiment.

_____ Is a Threat to Internal Validity Due to an External