Deck 23: Multi-Factorial Anova Designs

Question 1

1) In a 2 x 3 factorial ANOVA analysis there will be:

A) Two main effects and one interaction effect
B) Six main effects and one interaction effect
C) Two main effects and three interaction effects
D) One main effect and one interaction effect

Answer 1

A

Question 2

2) In a two-way factorial ANOVA analysis:

A) If the interaction effect is significant then at least one of the main effects must be significant
B) If the interaction effect is significant then none of the main effects can be significant
C) The interaction and one main effect can be significant
D) The interaction and both main effects can be significant

Answer 2

D

Question 3

A researcher tests groups of high, medium and low anxiety participants who have been permitted either low sleep or normal sleep before learning and being tested on a memory list of 15, 20, 30 or 45 items.
-3) The factorial design will be:

A) 3 x 2 x 5 unrelated
B) 2 x 3 x 5 related
C) 3 x 2 x 4 unrelated
D) 3 x 2 x 4 related

Answer 3

C

Question 4

A researcher tests groups of high, medium and low anxiety participants who have been permitted either low sleep or normal sleep before learning and being tested on a memory list of 15, 20, 30 or 45 items.
-4) In the design described above the degrees of freedom associated with the memory x sleep interaction will be:

A) 1
B) 3
C) 4
D) 2

Question 5

A researcher tests groups of high, medium and low anxiety participants who have been permitted either low sleep or normal sleep before learning and being tested on a memory list of 15, 20, 30 or 45 items.
-5) In the design described above if the MS_anxiety was 7.93 what was the sum of squares for the anxiety effect?

A) 3.965
B) 15.86
C) 7.93
D) 23.79

Question 6

The results of a two-way ANOVA analysis following an experiment with level of illumination as one independent variable and knowledge of results as the other independent variable were as follows:
Illumination F (3, 108) = 5.34
Knowledge of results F (2, 108) = 2.34
Interaction (ill x kr) F (6, 108) = 1.12
-6) The number of illumination conditions was:

A) 5
B) 4
C) 2
D) 3

Question 7

The results of a two-way ANOVA analysis following an experiment with level of illumination as one independent variable and knowledge of results as the other independent variable were as follows:
Illumination F (3, 108) = 5.34
Knowledge of results F (2, 108) = 2.34
Interaction (ill x kr) F (6, 108) = 1.12
-7) In the analysis described above the number of participants was:

A) 119
B) 120
C) 108
D) 11

Question 8

The results of a two-way ANOVA analysis following an experiment with level of illumination as one independent variable and knowledge of results as the other independent variable were as follows:
Illumination F (3, 108) = 5.34
Knowledge of results F (2, 108) = 2.34
Interaction (ill x kr) F (6, 108) = 1.12

-8) In the analysis described above:

A) The interaction effect was significant with p < .05
B) The interaction effect was significant with p < .01
C) The interaction effect was not significant at the $\alpha$ = .05 level
D) The interaction effect only just failed to reach significance

Question 9

Conducting a two ANOVA on the following data:

-Aggression scores (max = 50) for participants in the conditions shown

A) The mean for the frustrating task was higher than the mean for the easy task F (1,24) = 7.01, p < .05
B) The mean for the easy task was higher than the mean for the frustrating task F (1,24) = 7.01, p < .05
C) The mean for the frustrating task was higher than the mean for the easy task F (1,24) = 7.01, p < .01
D) The mean for the frustrating task was higher than the mean for the easy task F (1,25) = 7.01, p < .05

Question 10

Conducting a two ANOVA on the following data:
$$\begin{array} { | l | l | l | } \hline & \text { Heated room } & \text { Chilled room } \\\hline \text { Frustrating task } & 35,42,23,48,38,27,19 & 23,35,18,11,15,28,33 \\\hline \text { Easy task } & 21,27,33,10,12,18,22 & 10,5,18,23,35,18,10 \\\hline\end{array}$$ Aggression scores (max = 50) for participants in the conditions shown

-10) In the analysis above:

A) The interaction effect is significant with p < .05
B) The interaction effect is significant with p < .01
C) The interaction effect is not significant at the $\alpha$ = .05 level
D) The interaction effect has 2 df