__________ refers to a threat to internal validity that occurs if the equipment or human measuring the DV changes the measuring criterion over time.
A) Mortality
B) Maturation
C) History
D) Instrumentation

Question

Quizplus · Accepted Answer

Instrumentation refers to changes in the measurement tools or procedures that can affect the results of an experiment, impacting the internal validity.

__________ Refers to a Threat to Internal Validity That Occurs