In a study about childhood obesity,the researcher discusses the concept of overweight in terms of weight for height measures,body mass index (BMI),body image,self-esteem,and social norms.The researcher states that a BMI less than the 95th percentile represents overweight.This statement is a(n)
A) conceptual definition.
B) dependent variable.
C) independent variable.
D) operational definition.

Question

Quizplus · Accepted Answer

The operational definition describes how the concept may be measured or manipulated in a study.A conceptual definition is more comprehensive than a denotative or dictionary definition and includes associated meanings the word may have.The dependent variable is a measurable variable that is hypothesized to change because of manipulation or change in the independent variable.The independent variable is a measurable variable that is manipulated by the researcher to observe possible changes in the dependent variable.

In a Study About Childhood Obesity,the Researcher Discusses the Concept