Multiple Choice
A group of adults was given a new high protein breakfast bar then asked to record their level of alertness just before lunchtime. In this example, is the treatment variable and is the outcome variable.
A) The group of adults; alertness level
B) Alertness level; the breakfast bar
C) The breakfast bar; lunchtime
D) The breakfast bar; alertness level
Correct Answer:

Verified
Correct Answer:
Verified
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