17. Structuralism, the first true theoretical perspective in the scientific discipline of psychology, remains to this day a popular theoretical orientation that many psychologists have adopted

In a study of the effects of exercise on cardiovascular fitness, a sport psychologist randomly assigned participants to one of four groups

Participants engaged in aerobic exercise for either 0, 15, 30, or 60 minutes three days a week for three months. Which of the following statements is true about this study? a. there is no control group b. participants in the control group did not exercise c. there are four independent variables d. the dependent variable has four levels e. this is not an experiment

The size of a given population may be

a. finite b. infinite c. determined on the basis of the total number of observations sharing a given trait d. all of these