Critiq.docx - T-Test Name Professor Date Why the authors used this t test T-test is used to determine or analyze data which involves two variables The

Critiq.docx - T-Test Name Professor Date Why the authors...

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T-Test Name Professor Date
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Why the authors used this t test T-test is used to determine or analyze data which involves two variables. The test can determine if two groups are statistically related or different from each other[ CITATION HoM14 \l 1033 ]. The T-test is appropriate when researcher need to compare the mean of two groups on two time intervals and it is used mostly when analyzing the posttest when two groups are involved in experimental design. The aim of the article[ CITATION Bry10 \l 1033 ] is to determine if learners in pre- school who participated in school based Healthy for life program significantly improve their physical activity, improve their knowledge and preferences, reduced their screen time, and reduce their rate of obesity in a time duration of 8-month. By the very reason that the researcher was testing same group at different study times, he decided to use paired sample T-test. According to[ CITATION Ash11 \l 1033 ], Paired sample Test was to compare two means which are from same study class but the study should be conducted at different times. The purpose of
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