Exhibit 10-7: Identify the Threats to Internal Validity Illustrated in the Example

Multiple Choice

Exhibit 10-7: Identify the threats to internal validity illustrated in the example below.
-Refer to Exhibit 10-7.Some students left the experimental program because of a conflict with sports.

A) Instrumentation
B) Experimental mortality
C) Selection-maturation interaction
D) Statistical regression
E) Diffusion