Jafar conducted an experiment with student participants in which he investigated their reactions to advertisements that used humour. When analyzing his results, he should take into account that:
A) there are likely to be many confounds in his methodology, so his results may not be reliable
B) by using random assignment of participants to groups, it is likely that he avoided selection bias
C) he has a convenience sample and may not be able to generalize his findings to the larger population of adults
D) self-report methods are not an accurate way to get authentic reactions to the advertisements

Question

Quizplus · Accepted Answer

Since Jafar used a convenience sample, his findings may not be generalizable to the larger population of adults. It is important to use a random sample to increase the likelihood of representativeness.

Jafar Conducted an Experiment with Student Participants in Which He