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# [Solved] Assumption of Homogeneity of Slopes

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### [Solved] Assumption of Homogeneity of Slopes

Complete the exercise and then complete the worksheet below by filling in the blanks and answering the questions.

H01: There is no significantdifference among the depression scores of students who receive Journal and Counseling therapy, Journal therapy only, or Counseling therapy only, while controlling for pre-test depression scores.

Assumptions

Outliers: Create a Box and Whisker plot for each group.

Insert Graph or Table Here

Fill in the blanks:

Group (Pre-Test):

Outliers (Item #)

Are there any outliers?

Journal and Counseling

Journal only

Counseling only

Group (Post-Test):

Outliers (Item #)

Are there any outliers?

Journal and Counseling

Journal only

Counseling only

Assumption of Normality: Run a normality test for each group. InsertTests of Normality table below:

Insert Graph or Table Here

Fill in the blanks:

Should you use a Shapiro-Wilks or Kolmogorov-Smirnov test? Why?

Groups (Pre-Test)

Significance

Is the assumption of normality met?

Journal and Counseling

Journal only

Counseling only

Groups (Post-Test)

Significance

Is the assumption of normality met?

Journal and Counseling

Journal only

Counseling only

Assumption of Linearity:Hint: Run a series of scatter plots between the pre-test variable and post-test variable for each group. Begin by going to Data > Split File (see lesson 15, p. 64), and then make the plots. Add line of fit. See Warner p. 168- 172. After making the scatterplots, go to Data > Split File > RESET before continuing with the analysis.

Insert Graph or Table Here

Fill in the blanks:

Variables

Is the assumption of linearity met?

Journal & Counseling (Pre)Description: http://wwwJournal & Counseling (Post)

Journal only (Pre)Description: http://www Journal only (Post)

Counseling only (Pre)Description: http://www Counseling only (Post)

Assumption of Bivariate Normal Distribution:Hint: Run a series of scatter plots between the pre-test variable and post-test variable for each group (Same as above). Look for the classic “cigar shape.” See Warner p. 168- 172.

Insert Graph or Table Here

Fill in the blanks:

Variables

Is the assumption of Bivariate Normal Distribution met?

Journal & Counseling (Pre)Description: http://www Journal & Counseling (Post)

Journal only (Pre)Description: http://www Journal only (Post)

Counseling only (Pre)Description: http://www Counseling only (Post)

Assumption of Homogeneity of Slopes:Hint: Remember to go to Univariate > Model > Custom and look for an interaction.

Insert Graph or Table Here

Fill in the blanks:

F-stat

Significance

Is the assumption of Homogeneity-of- Slopes met?

Assumption of Equal Variance: InsertLevene’s Test of Equality of Error Variancesa table(s) below:

Insert Graph or Table Here

Fill in the blanks:

Significance

Is the assumption of equal variance met?

Results

InsertTests of Between-Subjects Effects table(s) below:

Insert Graph or Table Here

Fill in the blanks:

Value

d.f. betweenGroups

d.f. withinGroups

F-statistic

F-critical (See Appendix C in Warner)

p- value

Partial Eta Squared

Is theF- statistic greater thanF-critical?

Is thep- value less than .05?

Should you reject or fail to reject the null?

What is the effect size small, medium, or large (See Table 5.2 in Warner, p. 208)?

Should you run post hoc analysis?

Descriptive Statistics

Groups(Pre-Test)

Mean

S.D.

Journal and Counseling

Journal only

Counseling only

Groups(Post-Test)

Mean

S.D.

Journal and Counseling

Journal only

Counseling only

Groups(Estimates)

S.E.

Journal and Counseling

Journal only

Counseling only

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### Details

• Title: [Solved] Assumption of Homogeneity of Slopes
• Price: £ 99
• Post Date: 2021-10-25T04:29:01+00:00
• Category: Assignment
• No Plagiarism Guarantee
• 100% Custom Written

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[Solved] Assumption of Homogeneity of Slopes
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