When a sample is nonrandom, there are some important ways to improve the researchers' ability to generalize their study results. Which one of the following sampling strategies does NOT improve the nonrandom sampling process?
A) A sample for a study of alcohol use among high school students was solicited from multiple high schools.
B) A sample for a study of mental health needs of homeless people was solicited from several homeless shelters.
C) A sample for a study of local-area parents was solicited at various school and community events for parents.
D) A sample for a study of young adults was solicited from several classes at a local college where the researcher works.

Question

Quizplus · Accepted Answer

Option D does not improve the nonrandom sampling process as the researcher is only sampling from a single location - the local college where they work. This limits the diversity of the sample and does not account for young adults who may not attend that college. The other options (A-C) involve soliciting participants from multiple locations, increasing the diversity and representativeness of the sample.

When a Sample Is Nonrandom, There Are Some Important Ways