DrLess Collected Data Showing That Depressives Were Less Interested in Interacting

Multiple Choice

Dr.Less collected data showing that depressives were less interested in interacting with nondepressives.She concluded that their depression had caused them to withdraw from nondepressives.However,later research showed that depressives had not interacted with nondepressives even before they became depressed.Dr.Less failed to consider __________ problems.

A) falsifiability
B) directionality
C) third variable
D) internal validity