A researcher wants to test the theory that oldest siblings have the highest leve

Question

A researcher wants to test the theory that oldest siblings have the highest level of perfectionism. To do so, the researcher obtained data from 100 individuals that allowed him to put the participants into one of 4 groups: Oldest child, Youngest child, Middle child, Only child. Additionally, participants took a perfectionism questionnaire that gave them a perfectionism score out of 100 so he could compare perfectionism in the different groups. Which hypothesis test is appropriate for his study? Related-samples t-test Two-way ANOVA Onc-way ANOVA Chi square test

Explanation / Answer

Two way anova is used to test this study since there are 4 categories i.e. oldest child, youngest child, middle child, only child and different levels of score is assigned to each individual.

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