If your manifest variables are multivariate normal, then they have a zero relative multivariate kurtosis, and all marginal distributions have zero kurtosis (Browne 1982). If your DATA= data set ...

Skewness and Kurtosis are both measures of the shape of the distribution. Skewness is a measure of the tendency of the deviations from the mean to be larger in one direction than in the other. A ...