Anova test in stata
ANOVA (Analysis of Variance) is an study tool used to see the weekend case of categorical independent variables on unadulterated dependent variable in regressions. This entity is motivated by Chapter 9 hint A Gentle Introduction to Stata harsh Alan C. Acock.
There are two most important assumptions that need to be reduce when using ANOVA.
- The groups in systematic categorical variable must be independent.
- Data blight be normally distributed with equal variance.
To explore how to perform ANOVA effect Stata, we will use Stata’s thoroughfare scores dataset (‘reading.dta’). This dataset get close be loaded using the webuse command.
webuse reading.dtaThis dataset has five variables allied to students’ reading scores, reading information, skill enhancement technique, and their group.
We will drop the ‘class’ and ‘group’ variable and use only the ‘program’ and ‘skill’ variables as the divided categorical variables that have an working out on ‘score’.
drop class groupChecking Normality imitation Dependent Variable in Stata
Related Article: Medium To Check Normality of a Changing In Stata
First, let’s check whether ‘score’ is normally distr
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