Multiple Response Please select all correct answers and clic

Multiple Response: Please select all correct answers and click \"submit.\" A counselor wishes to examine the benefits of a parenting class on parenting skills. He decides to administer a questionnaire to the 10 parents who have attended the most recent class. How could this study be improved? Select all that apply. Use a random sample of all patients, who have attended the class. Administer a questionnaire to parents who have not attended the class. increase the sample size. Give parents some sample responses, prior to administering the questionnaire.

Solution

A survey or a study can be improved by taking random sample of peopel who have

attended the classes.Furher as sample size increases precision also increases as a result of decreasing variability.

So, option A and C seem to be correct.