06 Aug PSY 305 Assignment 3*****A++ Rated Tutorial Already***** Use As A Guide Paper*****
Instructions- Calculate this ANOVA by hand. Check your work by also calculating the ANOVA in SPSS or EXCEL. Be sure to do any multiple comparison tests and interpret the results.
| Control GroupA1 | PsychoanalysisA2 | CBTA3 | |
| X1 | 7 | 7 | 3 |
| X2 | 10 | 5 | 3 |
| X3 | 6 | 6 | 2 |
| X4 | 8 | 5 | 3 |
| X5 | 10 | 5 | 4 |
| X6 | 10 | 6 | 2 |
| X barA1 | |||
| SX (A1) | |||
| SX2 |
SST = SX2 – T2/an (also called [X] – [T])
SST = (a = number of groups, n = number in each group)
SST =
SSA = SA2– T2 (also called [A] – [T])
n an
SSA =
SSA =
SSS/A = SX2 – SA2 (also called [Y] – [A] )
N
SSS/A =
Now divide by its df to change it to variance. Variance is called Mean Square.
Complete ANOVA summary table on next page.
ANOVA Summary Table
Source SS df MS F
A-group
S/A (error)
Total
Find F-critical.
Are the groups significantly different?
Write the results statistically.
What do you do next? Why?
Which groups are different?
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