Some social and political psychologists identified groups of people who were alarmed, concerned or cautious about climate change.They then measured the commitment of those people to take action on climate change and conducted a one-way ANOVA.The results of this are below: Which of the following statements is true?
A)We need a two-way ANOVA to look at interactions between the groups.
B)We need to know the correlation between Alarmed and Cautious groups.
C)Judging from the means, ceiling and floor effects do not appear likely to be a problem.
D)The Alarmed group result is not valid it is a combination of regression to the mean and history effects.
E)All of the above.

Question

Some social and political psychologists identified groups of people who were alarmed, concerned or cautious about climate change.They then measured the commitment of those people to take action on climate change and conducted a one-way ANOVA.The results of this are below:  Which of the following statements is true?
A)We need a two-way ANOVA to look at interactions between the groups. 
B)We need to know the correlation between Alarmed and Cautious groups. 
C)Judging from the means, ceiling and floor effects do not appear likely to be a problem. 
D)The Alarmed group result is not valid it is a combination of regression to the mean and history effects. 
E)All of the above.

Quizplus · Accepted Answer

Based on the means provided, there does not appear to be any evidence of ceiling or floor effects. Therefore, we do not need to be concerned about data being clustered towards the top or bottom of the scale. The other options do not apply or require further information that is not provided in the question.

Some Social and Political Psychologists Identified Groups of People Who