One "additive/interaction threat" to the nonequivalent comparison-group design might occur is one group of participants becomes more experienced, tired, or bored than those in the other group. What is this threat?
A) Selection-attrition
B) Selection-maturation
C) Selection-instrumentation
D) Selection-regression

Question

Quizplus · Accepted Answer

This threat is known as Selection-maturation, where differences in experiences, fatigue, or boredom between groups over time can affect the outcomes, not necessarily the treatment or intervention itself.

One "Additive/interaction Threat" to the Nonequivalent Comparison-Group Design Might Occur