Evaluating Specific Threats to Internal Validity in a Causal-Comparative Study

Multiple Choice

Evaluating specific threats to internal validity in a causal-comparative study involves all of the following except:

A) identifying factors related to the variable(s) on which groups are compared
B) determining whether each factor is controlled by random assignment
C) judging whether comparison groups are likely to differ on these factors
D) prioritizing the seriousness of identified threats