Zeynep hypothesizes that sleep quality predicts weight gain and wants to be as sure as possible that any association she observes is consistent with her hypothesis.To do this,Zeynep should
A)use careful elaboration techniques to rule out any alternative explanations.
B)pay close attention to the practical significance her sample allows her to have.
C)draw her sample specifically from people who have reported sleep problems.
D)simultaneously model several control variables in a regression analysis.

Question

Quizplus · Accepted Answer

Controlling for other variables in a regression analysis can help to rule out alternative explanations and isolate the effect of sleep quality on weight gain, increasing the confidence in the observed association.

Zeynep Hypothesizes That Sleep Quality Predicts Weight Gain and Wants