List Each Class Threat to Internal Validity That Is Intrinsic

Multiple Choice

List each class threat to internal validity that is intrinsic to the following designs:

A) ex post facto study: history threat, maturation threat, selection threat, statistical regression threat, and selection interactions threat.
B) longitudinal study: history threat, maturation threat, testing threat, instrumentation threat, and subject mortality threat.
C) pretest/posttest study: maturation threat, testing threat, instrumentation threat, statistical regression threat, and subject mortality threat.
D) nonequivalent groups: history threat, maturation threat, selection threat,and selection interactions threat.