Independent t-Test
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The Relationship between Academic Performance and ADD Independent t-Test An independent t-test is conducted with several assumptions being put into consideration. For instance, it is presumed that data points in the sample are independent of each other. Secondly, it is assumed that there is normal distribution in the populations in the study. Finally, it is assumed that the variances are equal. An independent t-test is used to test a hypothesis; therefore, in this study the following hypothesis was considered. H0: Males and females portray the same ADD-like behavior. H1: There is difference in ADD-like behavior scores between males and females. The current study indicated that males and females differed in the ADD-like behaviors significantly (t(214) = .261, p < .001). As such, the null hypothesis (males and females portray the same ADD-like behavior) was rejected. It was established that males had a higher mean ADD-like behavior score compared to the scores for females (Males, M = 56.09, SD = 10.00; Females, M = 49.09, SD = 9.722). From this t-test analysis, it is right to conclude that ADD-like behaviors differ significantly between males and females whereby males have more ADD-like behaviors compared to females. This analysis also involved the testing of the relationship between ADD-like behaviors and existence of social adjustment problems in 9th Grade. The t-test showed that the difference between persons with social adjustment problems in 9th Grade compared to persons who did not have social adjustment problems was not statistically significant, t(214) = 3.559, p > .001. Individuals who had showed social adjustment problems in 9th Grade had higher ADD-like behavior scores (M = 62.56, SD= 7.12) compared to individuals who did not show social