Which of the following are accurate statements about the data collection process when conducting research?
a. The actual steps of collecting data are specific to each study and depend on the research design, sample, and measurement techniques.
b. Study participants may be recruited only at the initiation of data collection, but not throughout the data collection period.
c. It is not necessary for the researchers to specify the number and characteristics of subjects who decline to participate in the study.
d. The key to accurate data collection in any study is consistency.
e. Researchers build controls into their study plan to maximize the influence of intervening forces on the findings.