![]() ![]() There are 10 males and 10 female participants. The participants are the individuals who sign up for the speed dating event and interact with each of the 9 individuals of the opposite sex. Of each set of three, one individual has a highly charismatic personality, one is moderately charismatic and the third is extremely dull. For males and females, there are three highly attractive individuals, three moderately attractive individuals, and three highly unattractive individuals. Stooge dates are individuals who are chosen by the experimenter and they vary in attractiveness and personality. The experimenter selects 18 individuals, 9 males and 9 females to play stooge dates. In his example, there is a speed dating event set up in which there are two sets of what he terms "stooge dates": a set of males and a set of females. Participants would experience each level of the repeated variables but only one level of the between-subjects variable.Īndy Field (2009) provided an example of a mixed-design ANOVA in which he wants to investigate whether personality or attractiveness is the most important quality for individuals seeking a partner. : 506 An example Variables in Andy Field's (2009) mixed-design ANOVA example. ![]() Thus, overall, the model is a type of mixed-effects model.Ī repeated measures design is used when multiple independent variables or measures exist in a data set, but all participants have been measured on each variable. Thus, in a mixed-design ANOVA model, one factor (a fixed effects factor) is a between-subjects variable and the other (a random effects factor) is a within-subjects variable. In statistics, a mixed-design analysis of variance model, also known as a split-plot ANOVA, is used to test for differences between two or more independent groups whilst subjecting participants to repeated measures. ![]()
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