Question

The following data were obtained from a repeated- measures study comparing three treatment conditions. Conduct a...

  1. The following data were obtained from a repeated- measures study comparing three treatment conditions. Conduct a hypothesis test to examine whether there was a significant treatment effect (alpha = .05, follow four-step procedure)

Treatment

Participant

I

II

III

P

A

6

8

10

24

G = 48

B

5

5

5

15

ΣX2 = 294

C

1

2

3

6

D

0

1

2

3

T = 12

T = 16

T = 20

SS = 26

SS = 30

SS = 38

Homework Answers

Answer #1
Anova: Two-Factor Without Replication
SUMMARY Count Sum Average Variance
A 3 24 8 4
B 3 15 5 0
C 3 6 2 1
D 3 3 1 1
I 4 12 3 8.666667
II 4 16 4 10
III 4 20 5 12.66667
ANOVA
Source of Variation SS df MS F P-value F crit
PARTICIPANTS 90 3 30 45 0.000166 4.757063
TREATMEANT 8 2 4 6 0.037037 5.143253
Error 4 6 0.666667
Total 102 11

F stat for treatments = 45

P VALUE FOR TREATMENTS =0.037

p value < 0.05,significant

there was a significant treatment effect

.......................

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