A Researcher Sampled 16 Couples and Measured the Mean Difference

question 76

Multiple Choice

A researcher sampled 16 couples and measured the mean difference in their marital satisfaction.Each couple was paired and the differences in their ratings (on a 7-point scale) were taken.If the mean difference in satisfaction ratings for this sample was 1.8±2.0 ( ) ,then what is the decision at a .05 level of significance?

• A)Satisfaction ratings do not significantly differ,t(14)= 0.90.
• B)Satisfaction ratings do not significantly differ,t(15)= 0.90.
• C)Satisfaction ratings significantly differ,t(14)= 3.60.
• D)Satisfaction ratings significantly differ,t(15)= 3.60.