The two sample dependent t test should be used when two samples consist of the same people or objects measured "before" and "after" some event occurs, or when two samples consist of
A) randomly selected experimental and control groups.
B) two naturally different groups such as males and females.
C) individuals or objects that have been matched to make them comparable in relation to certain variables.
D) all of the above

Question

Quizplus · Accepted Answer

The two sample dependent t test is specifically designed to compare two samples consisting of the same individuals or objects measured before and after some event occurs. Thus, option A is incorrect as it refers to independent samples, and option B is incorrect as it refers to naturally different groups. Option C is the correct answer as it describes matching of individuals or objects to make them comparable in relation to certain variables, which is necessary for the two sample dependent t test.

The Two Sample Dependent T Test Should Be Used When