A Researcher Sampled 16 Couples and Measured the Mean Difference

question 62

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.

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Definitions:

Study Conduct

The manner in which research or academic studies are performed, emphasizing ethical, reliability, and validity standards.

Scientific Method

A systematic process of inquiry involving observation, experimentation, and analysis to answer questions about the natural world.

Observer Bias

A form of research bias that occurs when a study's observers allow their expectations or beliefs to influence the recording of data or interpretation of outcomes.

Adult Memory

The capacity of an adult to store, retain, and recall information and experiences from the past.