A researcher wants to know whether eating chocolate makes people nervous.The amount of chocolate eaten:

Question

Quizplus · Accepted Answer

The amount of chocolate eaten is manipulated by the researcher, and is therefore the independent variable. The dependent variable is the level of nervousness, measured after the participant has eaten the chocolate. The operational definition refers to how a variable is defined and measured in a study, and is not applicable as an answer choice in this question. Criterion validity refers to the extent to which a measure or test accurately predicts a particular criterion, and inferential statistics are used to draw conclusions about a population based on sample data.

A Researcher Wants to Know Whether Eating Chocolate Makes People