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4. Researchers were randomly assigned the participants to one out of the three intervention conditions: 1) violent movie (VM) condition; 2) romantic movie (RM) condition, and; 3) control group condition. After the intervention, an agreeableness questionnaire was distributed to the participants. Researchers wanted to investigate the agreeableness levels between these three groups of participants after the intervention. a. What statistical test should be used to achieve the research objective? b. State the null and research hypothesis in word form. c. Refer to the SPSS output tables below, please interpret the research results (i.e., both ANOVA table and post-hoc comparisons) and report the relevant statistics as well.

4. Researchers were randomly assigned the participants to one out of the three intervention conditions: 1) violent movie (VM) condition; 2) romantic movie (RM) condition, and; 3) control group condition. After the intervention, an agreeableness questionnaire was distributed to the participants. Researchers wanted to investigate the agreeableness levels between these three groups of participants after the intervention. a. What statistical test should be used to achieve the research objective? b. State the null and research hypothesis in word form. c. Refer to the SPSS output tables below, please interpret the research results (i.e., both ANOVA table and post-hoc comparisons) and report the relevant statistics as well.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4. Researchers were randomly assigned the participants to one out of the three intervention conditions: 1) violent movie (VM) condition; 2) romantic movie (RM) condition, and; 3) control group condition. After the intervention, an agreeableness questionnaire was distributed to the participants. Researchers wanted to investigate the agreeableness levels between these three groups of participants after the intervention. a. What statistical test should be used to achieve the research objective? b. State the null and research hypothesis in word form. c. Refer to the SPSS output tables below, please interpret the research results (i.e., both ANOVA table and post-hoc comparisons) and report the relevant statistics as well. Agreeableness Violence movie (VM) Romantic movie Control group Total N 13 17 20 50 Mean 17.8462 26.5882 20.1000 21.7200 Agreeableness Between Groups Within Groups Total Std. Deviation 1.99358 1.83912 1.83246 4.08102 Agreeableness Based on Mean Based on Median Based on Median and with adjusted df Based on trimmed mean Descriptives Sum of Squares 650,470 165.610 816.080 Std. Error 55292 44605 40975 57714 Test of Homogeneity of Variances Levene Statistic ANOVA df 2 95% Confidence Interval for Mean 47 49 Lower Bound 16.6414 25.6426 19.2424 20.5602 .049 060 .060 042 df1 2 2 2 Mean Square 2 Upper Bound Minimum Maximum 19.0509 15.00 21.00 27.5338 24.00 30.00 20.9576 16.00 23.00 22.8798 15.00 30.00 d12 47 47 44.693 F 325.235 92.301 3.524 47 Sig. Sig. .000 952 941 941 959 4
Transcribed Image Text:4. Researchers were randomly assigned the participants to one out of the three intervention conditions: 1) violent movie (VM) condition; 2) romantic movie (RM) condition, and; 3) control group condition. After the intervention, an agreeableness questionnaire was distributed to the participants. Researchers wanted to investigate the agreeableness levels between these three groups of participants after the intervention. a. What statistical test should be used to achieve the research objective? b. State the null and research hypothesis in word form. c. Refer to the SPSS output tables below, please interpret the research results (i.e., both ANOVA table and post-hoc comparisons) and report the relevant statistics as well. Agreeableness Violence movie (VM) Romantic movie Control group Total N 13 17 20 50 Mean 17.8462 26.5882 20.1000 21.7200 Agreeableness Between Groups Within Groups Total Std. Deviation 1.99358 1.83912 1.83246 4.08102 Agreeableness Based on Mean Based on Median Based on Median and with adjusted df Based on trimmed mean Descriptives Sum of Squares 650,470 165.610 816.080 Std. Error 55292 44605 40975 57714 Test of Homogeneity of Variances Levene Statistic ANOVA df 2 95% Confidence Interval for Mean 47 49 Lower Bound 16.6414 25.6426 19.2424 20.5602 .049 060 .060 042 df1 2 2 2 Mean Square 2 Upper Bound Minimum Maximum 19.0509 15.00 21.00 27.5338 24.00 30.00 20.9576 16.00 23.00 22.8798 15.00 30.00 d12 47 47 44.693 F 325.235 92.301 3.524 47 Sig. Sig. .000 952 941 941 959 4
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