Zeynep Hypothesizes That Sleep Quality Predicts Weight Gain and Wants

Multiple Choice

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.