PSY 2106 Chapter Notes - Chapter 10: Repeated Measures Design, Pooled Variance, Variance
12 Apr 2020
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A research design that uses a separate group of participants for each treatment condition/population. Also known as a within-subjects research design. Two sets of data are obtained from the same group of participants in each treatment condition. In an independent measures design, a hypothesis test significance of the mean difference between two seperate groups of participants that evaluates the statistical. A measure of the standard/average distance between a sample statistic and the corresponding population parameter. Obtained by averaging ( pooling ) the two sample variances using a procedure that allows the bigger sample to carry more weight in determining the final value. States that the two populations being compared must have the same variance. The defining characteristic of an independent-measures study is how it uses a separate group of participants to represent each of the populations or treatment conditions being compared . Explain what is measured by the estimated standard error in the denominator of the independent-measures t-statistic.
