A randomly selected sample increases the likelihood that experimental results will generalize to the population. In other words, a random sample increases ______ validity.
A) external
B) conceptual
C) internal
D) longitudinal

Question

Quizplus · Accepted Answer

External validity refers to the extent to which the findings of a study can be generalized beyond the specific sample used in the study. By selecting a random sample, researchers increase the likelihood that the sample is representative of the population, which enhances external validity. Conceptual validity refers to the adequacy of the operational definitions of the variables under study, internal validity refers to the extent to which the study design and procedures control for alternative explanations for the observed results, and longitudinal validity refers to the ability to draw accurate conclusions over time. While random sampling may impact these types of validity to some extent, it primarily affects external validity.

A Randomly Selected Sample Increases the Likelihood That Experimental Results