Directions: Use the following information to complete the assignment. While APA
format is not required for the body of this assignment, solid academic writing is
expected, and documentation of sources should be presented using APA formatting
guidelines, which can be found in the APA Style Guide, located in the Student
Success Center.
A researcher randomly assigns 33 subjects to one of three groups. Group 1 receives
technical dietary information interactively from an on-line website. Group 2 receives
the same information from a nurse practitioner, while Group 3 receives the
information from a video tape made by the same nurse practitioner.
The researcher looked at three different ratings of the presentation; difficulty,
usefulness, and importance to determine if there is a difference in the modes of
presentation. In particular, the researcher is interested in whether the interactive
website is superior because that is the most cost-effective way of delivering the
information.
Usefulnes Difficult Importanc
Group s y e
1 20 5 18
1 25 9 8
1 23 15 20
1 16 9 22
1 20 6 22
1 28 14 8
1 20 6 13
1 25 8 13
1 24 10 24
1 18 10 20
1 17 9 4
2 28 7 14
2 25 14 5
2 26 9 20
2 19 15 22
2 29 14 12
2 15 6 2
2 29 10 5
2 26 11 1
1. Run the appropriate analysis of the data and interpret the results.
2. How could this study have been done differently? Why or why not would this
approach be better?
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