A researcher plans to investigate whether a cup of hot milk at night helps people relax so that they fall asleep quickly.In this study,

Question

Quizplus · Accepted Answer

The independent variable is the consumption of hot milk at bedtime as it is the variable being manipulated by the researcher to see its effect on the dependent variable - time it takes to fall asleep. Option A is incorrect as it describes the dependent variable. Option C is also incorrect as it defines the group consuming hot milk as the control group, which is not necessary in this study. Option D is irrelevant to the question.

A Researcher Plans to Investigate Whether a Cup of Hot