In: Statistics and Probability
A replication study dataset of the example from this chapter is given as follows (A = attractiveness, B = time; same levels). Using the scores from the individual cells of the model that follow, conduct a two-factor fixed-effects ANOVA (alpha = .05). Are the results different as compared to the original dataset?
A1B1: 10, 8, 7, 3
A1B2: 15, 12, 21, 13
A2B1: 13, 9, 18, 12
A2B2: 20, 22, 24, 25
Result:
A replication study dataset of the example from this chapter is given as follows (A = attractiveness, B = time; same levels). Using the scores from the individual cells of the model that follow, conduct a two-factor fixed-effects ANOVA (alpha = .05). Are the results different as compared to the original dataset?
A1B1: 10, 8, 7, 3
A1B2: 15, 12, 21, 13
A2B1: 13, 9, 18, 12
A2B2: 20, 22, 24, 25
Excel Addon Megastat used.
| 
 Two factor ANOVA  | 
|||||
| 
 Factor 2  | 
|||||
| 
 Means:  | 
|||||
| 
 B1  | 
 B2  | 
||||
| 
 A1  | 
 7.0  | 
 15.3  | 
 11.1  | 
||
| 
 Factor 1  | 
 A2  | 
 13.0  | 
 22.8  | 
 17.9  | 
|
| 
 10.0  | 
 19.0  | 
 14.5  | 
|||
| 
 4  | 
 replications per cell  | 
||||
| 
 ANOVA table  | 
|||||
| 
 Source  | 
 SS  | 
 df  | 
 MS  | 
 F  | 
 p-value  | 
| 
 Factor 1 (A)  | 
 182.25  | 
 1  | 
 182.250  | 
 16.63  | 
 .0015  | 
| 
 Factor 2( B)  | 
 324.00  | 
 1  | 
 324.000  | 
 29.57  | 
 .0002  | 
| 
 Interaction  | 
 2.25  | 
 1  | 
 2.250  | 
 0.21  | 
 .6585  | 
| 
 Error  | 
 131.50  | 
 12  | 
 10.958  | 
||
| 
 Total  | 
 640.00  | 
 15  | 
|||
Both Factor A and B are significant at 0.05 level of significance. Interaction effect is not significant.