A Nurse Researcher Studies the Impact of Medication and Exercise

Multiple Choice

A nurse researcher studies the impact of medication and exercise on HgA1C levels and reports that exercise significantly decreases HgA1C levels. You know this means:

A) the beta coefficient associated with exercise is negative
B) medication is not as effective as exercise
C) the R square change associated with exercise is not significant
D) the beta coefficient associated with exercise is equal to the R square change