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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? (2 marks)

b. State the null and research hypothesis in word form. (4 marks)

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. (12 marks)

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