PSYC 2530 Chapter Notes - Chapter 10: Repeated Measures Design, Null Hypothesis, Statistic
17 Oct 2016
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Most research studies require the comparison of two (or more) sets of data. When the scores are numerical values, the research question concerns a mean difference between two sets of data. The research designs that are used to obtain the two sets of data can be classified in two general categories: 01. The two sets of data could come from two completely separate groups of participants. This is also known as an independent-measures research design or a between- subjects design: 02. The two sets of data could come from the same group of participants. This is also known as a repeated-measures research design or a within-subjects design. 10. 2 | the null hypothesis and the independent-measures t statistic. The number of scores in the first sample would be identified by n1; for the second sample, the number of scores is n2. The sample means would be identified by m1 and m2. The sums of squares would be ss1 and ss2.
