The students in this study were junior and senior college students from two sections of a course in internet marketing at a large northeastern university. the nonstudents were a group of individuals who were recruited to attend commercial focus groups on the west coast conducted by a lifestyle marketing organization. discuss how the method of selecting the subjects in this study relates to the conclusions that can be drawn from it.

The two groups differed in location (northeast/West Coast) as well as student/nonstudent classification. These issues mean we should not place too much confidence in the conclusions of our significance test? or, at least, we should not generalize our conclusions too far beyond the populations "upper level northeastern college students taking a course in Internet marketing" and "West Coast residents willing to participate in commercial focus groups."