A research hypothesis proposes that consuming low carbohydrate diets results in increased weight loss.One group of people follows a low-carb diet for three weeks,while a second group follows a high-carb diet containing the same number of calories for three weeks.The average number of pounds lost per person is compared.What is the independent variable?
A)number of pounds lost
B)length of time on the diet
C)the amount of carbs in each diet
D)the number of calories in each diet

Question

Quizplus · Accepted Answer

The independent variable, in this case, is the amount of carbs in each diet. It is the variable that is being manipulated or changed by the researchers to see its effect on the dependent variable, which is the average number of pounds lost per person. The study is comparing the effects of a low-carb diet versus a high-carb diet on weight loss, which means that carb content is the independent variable.

A Research Hypothesis Proposes That Consuming Low Carbohydrate Diets Results