All students in the class are given a questionnaire about gun control and the mean responses of the males and the females are compared. A medical researcher is testing the effectiveness of a new drug for treating Parkinson's disease. Ten subjects with the disease are given the new drug and 10 are given a placebo. Improvement in symptomology is measured. A study is conducted to determine whether people learn better with spaced or massed practice.
Subjects volunteer from an introductory psychology class.
Define independent and dependent variables. Response time Rating of job satisfaction Favorite color Occupation aspired to Number of words remembered Specify the level of measurement used for the items in Question 7. Categorize the variables in Question 7 as being continuous or discrete. An experiment is conducted to examine the effect of punishment on learning speed in rats. A new variable Y is created by multiplying each X by 3.