Dr.Kirch is a psychiatrist and finds that 70 percent of his patients qualify as having symptoms of sleep disorders, according to the results of a questionnaire.Dr.Kirch reports that 70 percent of the population must have the same condition as well.However, this study lacks _____ due to his biased sample.
A) convenience sampling
B) expected relative-frequency probabilities
C) generalizability
D) reliability

Question

Quizplus · Accepted Answer

The study lacks generalizability because Dr. Kirch only used a biased sample of his own patients to make a claim about the entire population. Generalizability refers to the ability to apply the findings and conclusions from a sample to a larger population. The other choices, convenience sampling, expected relative-frequency probabilities, and reliability, are not necessarily relevant to this specific issue.

DrKirch Is a Psychiatrist and Finds That 70 Percent of His