Around ________ percent of all children experience sleepwalking episodes

The many studies on motivation can be best summarized by the statement:

a. "motivation is a biological process" b. "motivation is a cognitive process" c. "motivation is learned" d. "motivation is multidimensional"

A research hypothesis proposes that consuming a low carbohydrate diet results in increased weight loss. One group of participants follows a low-carb diet for 3 weeks, whereas a second group follows a high-carb diet containing the same number of calories

for 3 weeks. The average number of pounds lost for each group is then is compared. What is the dependent variable? a) length of time on the diet b) amount of carbs in each diet c) number of calories in each diet d) number of pounds lost