PSYCH 3090 Lecture Notes - Lecture 28: Psych, Dependent And Independent Variables, Null Hypothesis
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D= d n: also could be calculated by taking the mean of x, taking the mean of y, and finding the. X y = d: sample standard deviation. 14: calculated t is outside the mean area (-2. 16 and positive 2. 16), and we reject h0, hedges g (effect size) D s d g= o o r2= t 2 t 2+df. The population mean difference between the no distraction and text. Messaging conditions is not equal to 0 (statistical condition): it appears that text messaging impairs driving (research conclusion), because g = 1. 1, this suggests a large effect. Approximately 57% of the variance in percentage of time driving within the lane can be attributed to group differences after partialling out (removing) the effects due to pairing/matching. Example 2: background, study on the effect of the organization of a list of words on recall.
