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
b
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A prototype is __________.
A. a group of objects sharing some common features B. the first example of a concept that one encounters C. the most unusual or distinctive example of a concept D. the best or most typical example of a concept
Jonathan and Meredith are twins who were raised in the same home but went to two separate universities and are now living in two different cities as they pursue their careers. The environments in which they now live is known as their non-shared environment
Indicate whether the statement is true or false
Fifteen-month-old Latisha enjoys playing with her pet kitten at home, whom she calls "kit-cat." At the park, she runs over to a group of ducks and excitedly shouts out "kit-cat;" she then runs over to a woman walking her dog and points to the dog shouting out "kit-cat." Latisha's verbalizations illustrate ____.
A. overextension B. telegraphic speech C. expressive language style D. receptive vocabulary
On a variable-interval schedule, reinforcement is given for the __________
a. first correct response after a fixed amount of time has passed b. first correct response after varying amounts of time have passed c. next correct response after a fixed number of responses have occurred d. next correct response after a varying number of responses have occurred