Dr. McGlynn is conducting a study on the effects of exercise on reaction time. He allows
subjects to exercise strenuously for either 0, 10, or 20 minutes. Next, subjects are seated at
a table containing a red push button and a yellow light.
Each subject is asked to push the
button as soon as he or she sees the light flash. Dr. McGlynn measures the time it takes
each subject to push the button after the light is lit. The control group in this study
a. did not exercise.
b. exercised for 10 minutes.
c. exercised for either 10 or 20 minutes.
d. exercised for 0, 10, or 20 minutes.
e. exercised for 20 minutes.
a. did not exercise.
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Indicate whether the statement is true or false
When Bobby misbehaves in a store, his father looks angrily at him, does not speak to him, and walks away, ignoring Bobby's pleas for forgiveness. Bobby's father is exhibiting which approach to controlling Bobby's behavior?
a. withdrawal of love b. power assertion c. passive enforcement d. management techniques
With concrete operational thought, children can
think logically about tangible things. think logically about abstract ideas. consistently make good decisions. solve most problems on their own.
The United States ranks ________.
A. in the top ten nations on most key measures of children's health and well-being B. higher than Spain and Germany in prevalence of childhood poverty C. higher than Canada in public expenditure on children's health care D. poorly on key measures of children's health and well-being