Ms. ledbetter wants to determine if the new review activity she developed will improve student performance on unit exams. she randomly separates 160 students into two groups. group a reviews for the unit exam in the traditional manner they have always used. group b participates in the new review activity. after reviewing, both groups are given the same unit exam and their scores are compared. identify the independent and dependent variables for this experiment.

The independent variable is the form of review. Dependent variable is the scores.  

Explanation:

An independent variable is used for testing the dependent variable.

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