Professor Caine is running an experiment to determine if exercise affects memory retention. Two groups of participants are given the same list of 25 words and allowed 15 minutes to study them

Then one group sits idly in a classroom while the other participates in an hour-long aerobic work-out. After the work-out each group is tested in the classroom on the list of words. What is the independent variable in this study?
a) the aerobic work-out
b) the word list
c) scores on the test
d) time allowed to study


a

Psychology

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Cialdini and colleagues (1975) found that students who were first asked to volunteer for two years, and then asked to volunteer for a two hour trip to the zoo with juvenile delinquents were significantly more likely to agree to the zoo, request than were students just asked to do the zoo trip. They labeled this the:

a. foot-in-the-door effect b. low balling c. social conformity d. door-in-the-face effect

Psychology

Margaret wants to study displays of justice and fairness in trial settings cross-culturally,

using what Matsumoto has called the "bottom-up approach." One method she could use in order to do this is to a. devise a theory of what constitutes a justdecision, then observetrials in several societies and see how well the theory applies. b. hold "mock trials" in different communities and observe people's behavior. c. attempt to become an active participant observer (i.e., juror) in at least two different cultures. d. observe and record people's behavior during a trial in one culture, then do the same in a different culture and compare the two.

Psychology

Carl Gustavson used principles of classical conditioning to

A. reduce predatory behaviors in wolves and coyotes. B. reduce the population of wolves and coyotes. C. change the amount of food that wolves and coyotes need to survive. D. change the habitat of wolves and coyotes.

Psychology

Which of the following is an important way that psychologists work to decrease behavioural risks to health?

A. through the use of community health campaigns that provide role models B. through the use of jail time for people who violate health codes C. through the use of electroconvulsive shock therapy for unhealthy, anxious patients D. through the use of sensory deprivation activities

Psychology