An experiment was done to compare the effect of having a conversation via a hands-free mobile phone,having a conversation with an in-car passenger,and no distraction (baseline)on driving accuracy.Twenty participants from two different age groups (18-25 years and 26-40 years)took part.All participants in both age groups took part in all three conditions of the experiment (in counterbalanced order),and their driving accuracy was measured by a layperson who remained unaware of the experimental hypothesis. Which of the following sentences regarding the output below is correct?
A)Variances are heterogeneous for all levels of the repeated-measures variable.
B)Sphericity can be assumed in all conditions.
C)None of the means in each driving condition differ from each other.
D)Variances are homogeneous for all levels of the repeated-measures variable.

Question

An experiment was done to compare the effect of having a conversation via a hands-free mobile phone,having a conversation with an in-car passenger,and no distraction (baseline)on driving accuracy.Twenty participants from two different age groups (18-25 years and 26-40 years)took part.All participants in both age groups took part in all three conditions of the experiment (in counterbalanced order),and their driving accuracy was measured by a layperson who remained unaware of the experimental hypothesis. Which of the following sentences regarding the output below is correct? 
A)Variances are heterogeneous for all levels of the repeated-measures variable. 
B)Sphericity can be assumed in all conditions. 
C)None of the means in each driving condition differ from each other. 
D)Variances are homogeneous for all levels of the repeated-measures variable.

Quizplus · Accepted Answer

The Answer of An experiment was done to compare the effect of having a conversation via a hands-free mobile phone,having a conversation with an in-car passenger,and no distraction (baseline)on driving accuracy.Twenty participants from two different age groups (18-25 years and 26-40 years)took part.All participants in both age groups took part in all three conditions of the experiment (in counterbalanced order),and their driving accuracy was measured by a layperson who remained unaware of the experimental hypothesis. Which of the following sentences regarding the output below is correct? 
A)Variances are heterogeneous for all levels of the repeated-measures variable. 
B)Sphericity can be assumed in all conditions. 
C)None of the means in each driving condition differ from each other. 
D)Variances are homogeneous for all levels of the repeated-measures variable.

An Experiment Was Done to Compare the Effect of Having