Researchers conducted an experiment to determine if riding a bike to school improves attention span. What are the treatment and outcome variables?
A)The treatment variable is riding a bike to school.The outcome variable is whether or not the child rode a bike to school.
B)The treatment variable is riding a bike to school.The outcome variable is the child's attention span.
C)The treatment variable is attention span.The outcome variable is whether or not the child rode a bike to school.
D)The treatment variable is attention span.The outcome variable is the child's attention span score.

Question

Quizplus · Accepted Answer

The treatment variable is the condition being manipulated or changed by the researchers, which in this case is "riding a bike to school." The outcome variable is what is being measured to see if there is an effect from the treatment, which here is "the child's attention span."

Researchers Conducted an Experiment to Determine If Riding a Bike