Author Question: Prior to initiating a research study, a researcher conducts a power analysis to determine the sample ... (Read 147 times)

WhattoUnderstand · **on:** Jul 8, 2018

Prior to initiating a research study, a researcher conducts a power analysis to determine the sample size necessary for a power level of 0.8 and an alpha of .05. The researcher will

a. apply a quota sampling technique to improve generalizability.
b. decrease the sample size to minimize costs.
c. increase the sample size to avoid a Type II error.
d. use stratified random sampling to minimize error.

Question 2

A researcher wishes to examine whether a teaching program for parents increases adherence to a drug regimen among children with seizure disorders.

A convenience sample of children in a large teaching hospital is proposed. In order to prevent confounding of the results by socioeconomic status and type of health insurance, the researcher will utilize which additional sampling technique?
a. Cluster
b. Network
c. Quota
d. Theoretical