are sem data biased what is sem for nonnormal data what makes a test statistic biased what would be the test statistic for non normal data? what is sem used for what is the test statistic for ordinal data what is the significance of an example of a sem what is the statistical test for nonnormal data what is the problem with ordinal data why is a sem used? what is sem in statistics what is the purpose of the sem in r why is the statistical test used to find outliers why is the sem statistically biased how to exclude a variable from a test set why do we use sem for ordinal data? what does semi mean in data what data would be affected by the deletion of outliers from ordinal data? why is the test statistic for a non normal ordinal data jittered? why does ordinal data cause biases in statistical tests