Statistical Sciences 2035 Quiz: 2-way BS ANOVA
44 views3 pages
16 Oct 2018
School
Department
Professor
Document Summary
Instead of performing 2 1-way bs anovas, analyzing the influence of 1 independent variable (with 3 levels) on 1 dependent variable each which would require 2 times a sample of n participants, We can conduct a single experiment with one sample of n participants, and analyze both variable simultaneously. Two-way = classified according to 2 variables or grouped in 2 different ways. Classification factor: sex or gender of participant (a factor which cannot be manipulated. Included because we expect an interaction effect with the experimental factor, or simply because the classification factor can help us to reduce error variance, giving more statistical power to the significance test on the effect of the experimental factor. A multifactorial design that observes all possible combinations of the factors is called a. Interaction effect between both factors: does the effect of factor a change under the different levels of factor b? (and vice versa)