Question

Data represents effects of food and/or water deprivation on behavior in a learning task. Treatments 1 & 2 represent control conditions in which the animal received ad lib food and water (1) or else food and water twice per day (2). In treatment 3 animals were food deprived, in treatment 4 they were water deprived, and in treatment 5 they were deprived of both food and water. Dependent variable is the number of trials to reach a predetermined criterion.Before running experiment, we decided to compare the combined control groups (1 & 2) w/ t combined experimental groups, control groups w/ each other, singly deprived treatments w/ doubly deprived treatment, & singly deprived treatments w/ each other

Ad Lib Cntrol	Two per Day Control	Food Deprived	Water Deprived	Food and Water Deprived
18	20	6	15	12
20	25	9	10	11
21	27	8	9	8
16	23	6	12	13
15	25	11	14	11
90	120	40	60	55

18	20	6	15	12	144	400	53.772889	25	40.11069
20	25	9	10	11	100	225	18.774889	100	53.77729
21	27	8	9	8	81	169	28.440889	121	106.7771
16	23	6	12	13	196	289	53.772889	64	28.44409
15	25	11	14	11	225	225	5.442889	36	53.77729
90	120	40	60	55	3600	6400	711.12889	1600	1344.447
					4346	7708	871.33333	1946	1627.33

Source	df	SS	MS	F	Signi (Y/ N)
Treatments						qf(0.025,1,25)
Contrast 1	1	75.85204	75.85204	0.114937	Yes	0.0010019
Contrast 2	1	150	150	0.227291	Yes	0.0010019
Contrast 3	1	1.851815	1.851815	0.002806	Yes	0.0010019
Contrast 4	1	66.66733	66.66733	0.101019	Yes	0.0010019
Error	25	16498.67	659.9467
Total	29

1. Are the four contrasts formed above orthogonal? Explain. (a) Interpret results for Contrast 1. Accounting for all four contrasts, what do the results tell us about effect of food/ water deprivation on the learning task? 2. Use above data to solve using SPSS. The steps you need to follow in SPSS are as follows: (a) Analyze > Compare means > One-way ANOVA. II.Move your variables into the appropriate boxes. III.Repeat Steps for all four contrasts 3. Run SPSS to obtain Post Hoc results on the data set above (a)Student-Newman-Keuls (Newman-Keuls) (b)Tukey’s HSD (c)In a few sentences, comment on the results (e.g., difference, similarity, Type I error rate, power, etc.) obtained from the two methods.

Answer 1