PSYC 2001 Lecture Notes - Smart People, Analysis Of Covariance, Analysis Of Variance
19 Feb 2014
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An experimental research design that involves two or more independent variables (factors) With more than 4, it becomes harder to interpret the data. Assign high and low iq to either 2 or 4 hour study. Anovas are a set of statistical methods used mainly to compare the means of two or more samples. Estimates of variance are the key intermediate statistics calculated. The different types of anova reflect the different experimental designs and situations for which they have been developed. Look for the biggest difference between any of the 2 by 2 **** Number of independent variables (1, 2, or 3): n-way anova. Type of independent variable (between-subjects, within-subjects mixed designs) 2 or more can do it all between (everyone does things only once), do within (everyone does everything), or mixed. When you run anovas, main effect and interaction can occur. Main effect: an outcome that is a consistent difference between levels of a factor.
