A Researcher Assigns Employees to Three Groups: No Feedback, Moderate

A researcher assigns employees to three groups: No feedback, moderate feedback, and then substantial feedback. She then records how long it takes each group to learn a new, moderately complex job task. What is the dependent variable in this design?

A) the moderately complex job task itself
B) the time it takes to learn the job tasks
C) the no feedback group
D) the substantial feedback group
E) the three different feedback groups