Question

The nonequivalent comparison group design can yield several possible outcomes. In one scenario, the experimental group scores higher than the control group at the start of the experiment, and only the experimental group's scores increase from pretesting to posttesting. This could reflect an influence of the independent variable. However, it could also reflect ___,

Answer 1

selection-maturation effect

Step-by-step explanation:

Selection-maturation effect: The term selection-maturation effect is defined as a phenomenon in which a particular group of subjects or participants tends to change concerning a given dimension faster as compared to the subjects or participants of another group.

A selection-maturation effect arises from the different rates of a normal growth between the pretest and posttest of particular groups.

in the question above, the given statement could also reflect the selection-maturation effect.