Question

Participants were randomly allocated to one of two stress management therapy groups (group A vs. group...

Participants were randomly allocated to one of two stress management therapy groups (group A vs. group B), or a waiting list control group. Their baseline levels of stress were measured before treatment, and again after 3 months of weekly therapy sessions. Therefore, covariate in the model is baseline stress levels.

Please help me write out the regression equation that models this research question

Math   Statistics-And-Probability   
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Answer #1

Here are 3 treatment groups under which study is done, that are: Group A , Group B and Control group. This is an ANCOVA model.

The detailed solution is given in the pictures below.

Please go through them carefully specially the notations.

Hope the solution helps. Thank you.

(Please do comment if further help is required)


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