In statistics, ordered logit is a flavor of the popular logit analysis, used for ordinal dependent variables. Similarly, the popular probit method also has a counterpart ordered probit. Template:Otherusescccc A graph of a bell curve in a normal distribution showing statistics used in educational assessment, comparing various grading methods. ... In mathematics, especially as applied in statistics, the logit (pronounced with a long o and a soft g, IPA ) of a number p between 0 and 1 is This function is used in logistic regression. ... In probability theory and statistics the probit function is the inverse cumulative distribution function, or quantile function of the normal distribution. ...