A Psychologist Examined the Relative Effectiveness of 2 Therapy Techniques

Essay

A psychologist examined the relative effectiveness of 2 therapy techniques for the treatment of seasonal depression.A sample of N=5 individuals who display moderate winter depression participated.Each subject was exposed to both light therapy and traditional cognitive therapy at different times.Treatments were counterbalanced to control for order effects.Following their treatment a survey was given measuring depression level.Therefore the dependent variable is a measure of depression after therapy via a questionnaire (1=not depressed 2=some depression 3=neutral 4=not depressed 5=happy.
a.

b.Is there a significant difference in the effectiveness of light therapy compared with cognitive therapy? Use a nondirectional correlated groups t-test with the alpha set at 0.05.
c.Compute the value of eta-squared.Do your results indicate a weak,moderate or strong effect?
d.Discern the nature of the relationship between the types of therapy.Which therapy is more effective?
e.Write an APA results section to the data above.Remember to include the means and Standard deviations.