PSYCH 3090 Lecture Notes - Lecture 25: Psych, Descriptive Knowledge, Target Acquisition
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Example 2: problem #10 in chapter 14, background, albert bandura has conducted a number of studies on aggression in children. In one study (bandura, ross, and ross, 1963), one group of nursery school children were shown a film of adults punching, hitting (with a hammer), kicking, and throwing a larger rubber bobo doll. Another group was not shown in the film. Afterward both groups were allowed to play with bobo dolls in a playroom, and the number of violent contacts were measured in each child. 33: x-bar = 47. 75, y-bar = 11. 1, ssx = 4522. 25, ssy = 1050. 9. 0 hyp (47. 75 11. 1) ( x y ) o o o. = (5. 128)2 rpb= t 2 t 2+df (5. 128)2+20 (5. 128)2. 2 = t2 rpb t2+df: conclusion: reject h0 (5. 128)2+20. In addition, approximately 57% of the variance in number of violent contacts can be attributed to differences between the film group and control group.
