Question

Julie works at a large gym. She wants to do a study of the effect of having a personal trainer on self-esteem and mood. She collects a list of members at her gym who would like to have a personal trainer. She assigns half of them to have a trainer right away and half of them to wait several months before being assigned a trainer. She measures self-esteem and mood in all of the participants over the next several months when only one of the groups would have a trainer. What kind of design is Julie using?

Answer 1

I believe she is doing an experimental research using two groups. The controlled group and with treatment would be studied on learning the effects of having a trainer (treatment) with mood and self-esteem. In her hypothesis she thinks that having a personal trainer could help build confidence and good attitude on doing gym workouts.