PSYC 210 Lecture Notes - Lecture 3: Decision Rule, Homoscedasticity, Test Statistic

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 210
• Professor: Snjezana Huerta

Document Summary

Mmt correlation t test (cid:1) 210 hypothesis test examples. A canadian sports psychologist has developed a three-week intervention to increase the training motivation of high school cross-country athletes. Motivation is operationalized in terms of the number of hours the athletes train each week. Test (mmt; population mean = 25, unknown) before the intervention (mmt1) and after the intervention (mmt2). The sport psychologist wanted to know whether mmt2 scores are positively associated with their mmt1 scores; this association was tested using 6 randomly- selected individuals from across canada and an alpha of . 05. Assumptions to be tested: bivariate normality of distribution of scores, errors are normally distributed, i. i. d. , with homoscedasticity. Step 3: specify the test statistic and the null distribution. r. R = e(r) = n = sr. Step 4: specify decision rule(s). (cid:4) = _______; ______-tailed test df = n - 2 = ________ critical value(s): ________________________ *collect data (using random sampling) & conduct thorough descriptive analyses (see p. 2)