| Correlation: An examination of the number of hours of television viewing and the frequency of aggressive acts for each of the 60 children revealed a positive or direct correlation between television viewing and instances of aggressive behavior. An analysis using Pearson's correlation coefficient supported this observation, r(58) = .63, p < .001. |
T-test: The control group (M = 14.1) remembered more words on the memory test than the drugged group (M = 12.3). This difference was tested using an independent groups t test, and was shown to be nonsignificant, t(18) = 1.23, p = .283. Thus, the data fail to support the notion of a drug effect on memory. |
| F-test: The mean scores for the short, medium, and long retention intervals were 5.9, 10.3, and 14.2, respectively. A one way analysis of variance revealed a significant effect of retention interval, F(2, 34) = 123.07, p < .001. |
Chi Square: While 60% of the males agreed that their map reading skills were strong, only 35% of the females did. A 2 x 2 Chi Square analysis revealed that this was a significant difference, x2 (1, N = 119) = 10.51, p = .0012, suggesting that there was a relationship between gender and confidence in map reading skills. |
| Table 1 Average exam scores by gender ----------------------------------------------------------- Gender Mean SD N t ----------------------------------------------------------- Male 68.9 13.4 15 2.33* Female 77.7 5.8 15 ----------------------------------------------------------- Total 73.3 9.6 30 *p=.0275, 2-tailed unpaired t-test. |
![]() Figure 1: Jupiter's moons
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