An interaction between age and an experimental treatment means that:
A) the results of the study are ambiguous
B) the experimental treatment influenced age
C) age influenced the experimental treatment
D) the effect of the experimental treatment differed at various ages

Question

Quizplus · Accepted Answer

An interaction between age and an experimental treatment indicates that the impact of the treatment varies depending on the age of the participants. This means the effect of the treatment is not uniform across all ages, but instead, it changes or differs as age varies.

An Interaction Between Age and an Experimental Treatment Means That