In addition, it has been proven that the gpower-normal family is a special case of pseudo-dispersion models, inheriting all the good properties of these models, such as asymptotic normality for small variances. It should be pointed out that very few examples of pseudo-dispersion models have been reported in the literature. The obtained p-values should be considered as descriptive values only and as a complement to the Q–Q plot, which provides a visual impression of the fit.