PSYC 60 Chapter Notes - Chapter 11: Confidence Interval, Variance, Null Hypothesis
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Use exactly same individuals in all treatment conditions no risk that one treatment is different from another. Results might be biased individuals in one sample are systematically different. Matched subjects: each individual in one sample is matched with individual in other sample; two individuals are equivalent/nearly equivalent with respect to a specific variable that the researcher would control. Each individual in one sample matched with one/one with individual of other sample. Scores in one set are directly related to the second set research designs are statistically equivalent and share common related samples designs. 11. 2 the t statistic for a repeated-measures research design. Related samples t is based on difference scores rather than raw scores. 11. 3 hypothesis tests and effect size for the repeated measures design. Every individual in the population were measured in two treatment. Individual scores in the population are not all equal to zero.
