PSYC 3380 Lecture Notes - Lecture 6: Sobel Test, Standard Deviation, Statistical Significance

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3380
• Professor: Jeffrey Spence

Document Summary

Deals with mechanisms why mediation used (one explanation) Second generation questions: under what circumstances are the variables related? . You are more likely to read articles that test for mediation in your classes and literature reviews for your own research. You may be more likely to design studies to test for mediation in your own research. When we say that variable m is a mediator, we mean that x has an effect on m, and. M in turn has an effect on y. Variable w is a moderator of the relation between x and y. We mean that the form or strength of the relation between x and y depends on the level of w. To illustrate, there may be a level of w under which the relation of x with y is much weaker or even absent understanding mediation. When testing for mediation, p values are usually examined to see if mediation is present or absent.