PSYC 2030 Chapter Notes - Chapter 8: Factorial Experiment, Analysis Of Variance, Environmental Factor
25 Jan 2017
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Chapter 8: experimental designs ii factorial designs: factorial essentials: Factorial design any experimental design with more than one independent variable: identifying factorial designs: The number of conditions in any factorial design can be determined by calculating the product of the numbers in the notation system. Thus, a 2 3 design has 6 conditions, a 3 3 has 9 conditions. In factorial studies, there are 2 types of results that occur: main effects and interactions. Main effects refers to whether or not statistically significant differences exist between the levels of an iv in a factorial design. Interactions occur when the effect of one iv depends on the level of another iv: main effects: In factorial designs, the term main effect is used to describe the overall effect of a single iv: in a study with 2 ivs, there can be at most 2 significant main effects.
