PSYC 2021 Study Guide - Final Guide: Repeated Measures Design, Null Hypothesis, Variance
10 Jun 2019
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Chapter 11: the t test for two related samples: a. This is an independent-measures experiment with two separate samples. b. The same individuals are measured twice: this is repeated-measures. This problem is eliminated with a repeated- measures design because the same individuals are in both groups. The second problem is that individual differences can increase variance. In a repeated-measures design, the individual differences are subtracted out of the variance: for a repeated-measures design the same subjects are used in both treatment conditions. In a matched-subjects design, two different sets of subjects are used. An independent-measures design would require two separate samples, each with 10 subjects, for a total of 20 subjects. b. 2. 064, reject the null hypothesis. sample mean and the population mean: a. The standard deviation is 5 points and measures the average distance between an b. The estimated standard error is 1. 67 points and measures the average distance between a: a.
