1.A researcher has obtained data from 45 subjects to compare three methods of therapy: rational-emotive therapy (RET), client-centered therapy (CCT), and behavior modification (BMOD). Three therapists were employed: each therapist treated five clients with each method of therapy. Assume the following ratings of the effectiveness of the therapy were obtained.

Therapist 1 2 Method RET 40,42,36,35,37 40,44,46,41,39 36,40,41,38,45 CCT 42,39,38,44,42 41,45,40,48,46 41,39,37,44,44 BMOD 48,44,43,48,47 41,40,48,47,44 39,44,40,40,43Source DF Type I SS Mean Square F Value Pr > F Method 2 104.711111 52.3555556 6.03 0.0055 Therapist 2 52.0444444 26.0222222 2.99 0.0626 Method*Therapist 4 76.088888 19.0222222 2.19 0.0898 9 Source DF Type III SS Mean Square F Value Pr > F Method 2 104.711111 52.355556 2.75 0.1771 Therapist 2 52.044444 26.022222 1.37 0.3526 Error 4 76.088889 19.022222 Error: MS(Method*Therapist) Source DF Type III SS Mean Square F Value Pr > F Method*Therapist 4 76.088889 19.022222 2.19 0.0898 Error: MS(Error) 36 312.800000 8.688889