Psych 302

David J. Weiss

Solutions for ANOVA Set 1

1.

Source	df	SS	MS	F
Between Treatments	3	43.20	14.40	12.99*
Between Subjects	4	11.50
Error	12	13.30	1.11

F _{crit, .05} = 3.49

There is a significant difference among the treatment means.

2.

Source	df	SS	MS	F
Between Groups	4	106.00	26.50	4.14*
Within Groups	15	96.00	6.40

F _{crit, .05} = 3.06

There is a significant difference among the group means.

3.

Source	df	SS	MS	F
Between Treatments	1	.45	.45	<1
Between Subjects	9	106.25
Error	9	7.05	.783

F _{crit, .05} = 5.12

There is no significant difference between the treatment means.

4.

Source	df	SS	MS	F
Between Groups	1	2400.00	2400.00	17.14*
Within Groups	10	1400.00	140.00

F _{crit, .05} = 4.96

There is a significant difference between the group means.

5.

Source	df	SS	MS	F
Between Groups	3	513.97	171.32	2.06
Within Groups	21	1749.29	83.30

F _{crit, .05} = 3.07

There is no significant difference among the group means.