A Social Psychologist Is Studying The Effects Of Knowledge Of Previous Criminal Record On Juries Perception Of Guilt Or 1 (41.19 KiB) Viewed 105 times
A Social Psychologist Is Studying The Effects Of Knowledge Of Previous Criminal Record On Juries Perception Of Guilt Or 2 (17.19 KiB) Viewed 105 times
A Social Psychologist Is Studying The Effects Of Knowledge Of Previous Criminal Record On Juries Perception Of Guilt Or 3 (7.57 KiB) Viewed 105 times
A Social Psychologist Is Studying The Effects Of Knowledge Of Previous Criminal Record On Juries Perception Of Guilt Or 4 (7.57 KiB) Viewed 105 times
A social psychologist is studying the effects of knowledge of previous criminal record on juries' perception of guilt or innocence. Fifteen volunteers are recruited and shown a video of a 4 hr trial of a woman accused of passing a bad check. Prior to viewing, all volunteers were given a background sheet with biographical data. All sheets were similar except for 5 participants, the last section said that the woman had been convicted several times before of similar offenses. For another 5 participants, the sheet indicated a clean record. For the last 5 participants, the sheet did not contain any previous record data. The dependent variable was the rating a participant gave indicating their judgment of guilt on a ten point scale: 1 = not guilty with high confidence, ...., 10 = guilty with high confidence. Ratings from the three participant groups are: w Criminal record group Clean record group No Background Info 10 5 4 7 1 6 5 9 10 3 74 3 8 3 M₂-8 M₂4 My - 5 32 -4.5 3²-5 32-6.5 Below is a partially completed ANOVA summary table. ANOVA
ANOVA Source of Variation SS df MS F Fcrit Between Groups Within Groups Total 107.33333 Complete the necessary entries (in a Word or Pages file or on paper) to perform the F-test and report whether there are differences in guilt ratings due to background information type. (a = .05). Report the effect size using n as the measure of effect.
Using Tukey's Honestly Significant Difference post hoc procedure, which of the pairs of means in the previous question are different (a = .05)?
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