Advanced Placement (AP)

A psychologist wanted to study the effects of exercise on mathematical problem-solving ability. She assigned subjects two different groups. One group cycled on an exercise bike
for 1 hour, and the other group performed no exercises. Afterward, both groups did a set of
math problems and their performances were compared. In this experiment the group that
did not exercise is the
independent variable
dependent variable
experimental group
control group

answer
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A psychologist wanted to study the effects of exercise on mathematical problem-solving ability. She...

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