Which one of the following is not a threat to the internal validity of an experiment?
A) maturation
B) regression effect
C) random error
D) mortality

Question

Quizplus · Accepted Answer

Random error is not a threat to internal validity as it is a type of error that is caused by chance and not related to any specific factor that could affect the validity of the experiment. Maturation, regression effect, and mortality are all factors that could potentially threaten the internal validity of an experiment.

Which One of the Following Is Not a Threat to the Internal