Statistics: Interpretation of ANOVA results

Hi, I am having a hard time with these questions. The questions are as follows,
1. Using the SPSS Output given below, interpret the datain the table for the within-subjects effect, the between-subjects effect, and the interaction.
2. Make sure to discuss the findings of the analysis in terms of what they actually meanin the context of the study.

I have the data in the attached documents.

The solution is very helpful to understand the concept of these types of problem. Step by step solution is attached for better understanding and clarity to this problem. If you need any clarification, please feel free to ask. I will be happy to help you. Thanks!

Within-Subjects Factors
Measure:MEASURE_1
Anxiety_Level Dependent Variable
1 RCMAS_Pretreatment
2 RCMAS_Posttreatment

Between-Subjects Factors
Value Label N
Treatment_Condition 1 CBT 33
2 PSY 33
3 SUPP 33

Descriptive Statistics
Treatment Condition Mean Std. Deviation N
RCMAS_Pretreatment CBT 20.3333 3.70529 33
PSY 19.9091 3.22455 33
SUPP 20.4242 4.30864 33
Total 20.2222 3.74045 99
RCMAS_Posttreatment CBT 7.3939 4.34410 33
PSY 11.7879 3.79768 33
SUPP 16.0909 3.97149 33
Total 11.7576 5.36255 99

Multivariate Testsb
Effect Value F Hypothesis df Error df Sig.
Anxiety_Level Pillai’s Trace .809 407.585a 1.000 96.000 .000
Wilks’ Lambda .191 407.585a 1.000 96.000 .000
Hotelling’s Trace 4.246 407.585a 1.000 96.000 .000
Roy’s Largest …

This solution is comprised of a detailed explanation of Interpretation of Repeated Measure ANOVA. In this solution, step-by-step explanation of this complicated topic provides students with a clear perspective of Interpretation of Repeated Measure ANOVA.