The nurse researcher submits a proposal for an initial study to evaluate the effects of regular moderate exercise on asthma control scores in adolescents with asthma.To achieve increased control in the initial study,the researcher will do which of the following? Select all that apply.
A) Ask subjects to keep track of time spent exercising in a journal.
B) Have subjects exercise on treadmills in the clinic three times weekly.
C) Choose subjects classified as having moderate intermittent asthma symptoms.
D) Limit participants to adolescent males who have asthma.

Question

Quizplus · Accepted Answer

To control variables,the researcher should have subjects participate in the action in as controlled a setting as possible.Having participants exercise in the clinic allows for better control and evaluation of the degree of exercise.Limiting subjects to those who have similar symptoms will help limit extraneous variables that might be attributed to differences in asthma severity or any differences attributed to gender.Asking subjects to record unsupervised exercise limits the degree of control of this variable.

The Nurse Researcher Submits a Proposal for an Initial Study