Grand Canyon University:PSY 520 Topic 7 Assignment, MANOVA Project COMPLETED

PSY-520 Graduate Statistics Topic 7 – MANOVA Project 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 e ...

PSY-520 Graduate Statistics Topic 7 – MANOVA Project 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. Group Usefulnes s Difficult y Importanc 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 This study source was downloaded by 100000831988016 from CourseHero.com on 05-07-2022 10:14:41 GMT -05:00 https://www.coursehero.com/file/28266794/Week-7-Manova-Projectdocx/ 2 22 5 2 2 15 15 14 2 29 6 4 2 15 6 3 3 22 8 12 3 27 9 14 3 21 10 7 3 17 9 1 3 16 7 12 3 19 9 7 3 23 10 1 3 27 9 5 3 23 9 6 3 16 14 22 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? Between-Subjects Factors N Group 1 11 2 12 3 10 Descriptive Statistics Group Mean Std. Deviation N Usefulness 1 21.45 3.804 11 2 23.17 5.750 12 3 21.10 4.095 10 Total 21.97 4.633 33 Difficulty 1 9.18 3.125 11 2 9.83 3.881 12 3 9.40 1.838 10 Total 9.48 3.043 33 Importance 1 15.64 6.786 11 2 8.67 7.402 12 This study source was downloaded by 100000831988016 from CourseHero.com on 05-07-2022 10:14:41 GMT -05:00 https://www.coursehero.com/file/28266794/Week-7-Manova-Projectdocx/ 3 8.70 6.430 10 Total 11.00 7.479 33 Multivariate Testsa Effect Value F Hypothesis df Error df Sig. Intercept Pillai's Trace .971 313.177b 3.000 28.000 .000 Wilks' Lambda .029 313.177b 3.000 28.000 .000 Hotelling's Trace 33.555 313.177b 3.000 28.000 .000 Roy's Largest Root 33.555 313.177b 3.000 28.000 .000 Group Pillai's Trace .265 1.478 6.000 58.000 .202 Wilks' Lambda .743 1.495b 6.000 56.000 .197 Hotelling's Trace .335 1.509 6.000 54.000 .193 Roy's Largest Root .299 2.889c 3.000 29.000 .052 a. Design: Intercept + Group b. Exact statistic c. The statistic is an upper bound on F that yields a lower bound on the significance level. Tests of Between-Subjects Effects Source Dependent Variable Type III Sum of Squares df Mean Square F Sig. Corrected Model Usefulness 27.676a 2 13.838 .630 .540 Difficulty 2.539b 2 1.270 .130 .879 Importance 354.688c 2 177.344 3.707 .036 Intercept Usefulness 15749.852 1 15749.852 716.669 .000 Difficulty 2944.186 1 2944.186 300.731 .000 Importance 3971.669 1 3971.669 83.013 .000 Group Usefulness 27.676 2 13.838 .630 .540 Difficulty 2.539 2 1.270 .130 .879 Importance 354.688 2 177.344 3.707 .036 Error Usefulness 659.294 30 21.976 Difficulty 293.703 30 9.790 Importance 1435.312 30 47.844 Total Usefulness 16615.000 33 Difficulty 3265.000 33 Importance 5783.000 33 Corrected Total Usefulness 686.970 32 This study source was downloaded by 100000831988016 from CourseHero.com on 05-07-2022 10:14:41 GMT -05:00 https://www.coursehero.com/file/28266794/Week-7-Manova-Projectdocx/ Difficulty 296.242 32 Importance 1790.000 32 a. R Squared = .040 (Adjusted R Squared = -.024) b. R Squared = .009 (Adjusted R Squared = -.058) c. R Squared = .198 (Adjusted R Squared = .145) 1. Grand Mean Dependent Variable Mean Std. Error 95% Confidence Interval Lower Bound Upper Bound Usefulness 21.907 .818 20.236 23.578 Difficulty 9.472 .546 8.356 10.587 Importance 11.001 1.207 8.535 13.467 2. Group Dependent Variable Group Mean Std. Error 95% Confidence Interval Lower Bound Upper Bound Usefulness 1 21.455 1.413 18.568 24.341 2 23.167 1.353 20.403 25.930 3 21.100 1.482 18.072 24.128 Difficulty 1 9.182 .943 7.255 11.109 2 9.833 .903 7.989 11.678 3 9.400 .989 7.379 11.421 Importance 1 15.636 2.086 11.377 19.896 2 8.667 1.997 4.589 12.745 3 8.700 2.187 4.233 13.167 Multiple Comparisons Tukey HSD Dependent Variable (I) Group (J) Group Mean Diff