Multiple Choice
Erickson and colleagues (2011) randomly assigned older adults to one of two activities: a gentle stretching condition or a more intense aerobic exercise condition.Because Erickson and colleagues randomly assigned participants to the activities and because they deliberately manipulated the activity,their investigation is an example of the _____ research method.
A) correlational
B) experimental
C) case study
D) naturalistic observation
Correct Answer:
Verified
Correct Answer:
Verified
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