Which of the following is a mixed design? An investigation of the effect of sex

Question

Which of the following is a mixed design?

An investigation of the effect of sex of participant on age of attaining a degree

An investigation of the effect of the sex of the participant on driving simulator errors before and after drinking alcohol

An investigation of the effect of sex of participant on choice of degree topic

An investigation of the effect sex of participant on driving simulator errors with and without training

An investigation of the effect of sex of participant on age of attaining a degree

An investigation of the effect of the sex of the participant on driving simulator errors before and after drinking alcohol

An investigation of the effect of sex of participant on choice of degree topic

An investigation of the effect sex of participant on driving simulator errors with and without training

Explanation / Answer

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. 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. Thus, overall, the model is a type of mixed effect model.

Hence answer is B.

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