The threat to internal validity (called "maturation") refers to
A) predictable changes in people that can be expected solely due to the passage of time.
B) events happening in the community that will change the behavior of the program participants.
C) the improved skill of a program staff as they become more experienced.
D) differences between people who want a program and those who do not want it.

Question

Quizplus · Accepted Answer

Maturation is the threat to internal validity that refers to predictable changes that occur in people solely due to the passage of time (such as aging or developmental changes). This can affect the results of a study if changes in participants' behavior or attitudes are mistakenly attributed to the intervention being studied rather than to natural maturation over time.

The Threat to Internal Validity (Called "Maturation") Refers to