A clinical psychologist is interested in evaluating the effectiveness of the fol

Question

A clinical psychologist is interested in evaluating the effectiveness of the following three techniques for treating mild depress ion: cognitive restructuring, assertiveness training, and an exercise/nutrition program. Forty undergraduate 2. from mild depression are randomly sampled from the university to the three techniques previously mentioned, and the remaining ten to a placebo control group. Treatment is conductecd weeks, after which depression is measured using the Beck Depression Inventory. The summary data of this study is presented counseling center's waiting list and randomly assigned ten each here. Exercise 20.9 14.49 209 10 Placebo Assertiveness 16 13 160 10 Cognitive Means Variances 17.16 228 10 11.6 12.84 116 10 Please state the null and alternative hypotheses. Assume that non-direction hypothesis is involved. (5pts) Using an = 0.05, what is your conclusion? ( 10pts)

Explanation / Answer

H0: There is nosigificant difference between means of 4 groups

H1:There is a sigificant difference between means of 4 groups

alpha:5%

Test statistic:

We use One way ANOVA

F cal= 17.69

P value=0.000

P0.05 we reject the H0. Hence claim is significant

Sorce df ss ms F cal F critical P value Between 3 762.875 254.2917 17.68849 2.866266 3.18E-07 Residual 36 517.54 14.37611 Total 39 1280.415

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.