Researchers Conducted an Experiment to Determine If Children Who Participate

Researchers conducted an experiment to determine if children who participate in a new after-school tutoring program do better on state-mandated tests than children who do not attend the program. What are the treatment and outcome variables?

A) The treatment variable is participation in the after-school program.The outcome variable is whether or not a child attended.
B) The treatment variable is participation in the after-school program.The outcome variable is the test score on the state-mandated test.
C) The treatment variable is the state-mandated test.The outcome variable is the participation in the after-school program.
D) The treatment variable is the state-mandated test.The outcome variable is the test score on the state-mandated test.

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