With respect to kurtosis, most items had values indicating a mesokurtic
distribution, with the exception of item 11 (-1.
The dune sands in the northern and middle parts of the Gaza Strip are primarily very leptokurtic, whereas in the middle and southern parts, they are leptokurtic to mesokurtic
Because the performance data for happiness were neither symmetric nor mesokurtic
, a nonparametric Mann-Whitney test was used to compare the groups in happiness recognition for the three different stimulus durations.
The mean values of skewness and kurtosis coefficients are close to zero for all variables, indicating symmetrical and mesokurtic
distribution, respectively, despite the asymmetry indicated by the Anderson-Darling test.
Specifically, with total sample sizes of 45 or larger, the LMM with the KR procedure is a suitable option for analyzing data when the distributions are: (a) mesokurtic
and not highly or extremely skewed; and (b) symmetric, with different degrees of kurtosis.
kur] = 3: mesokurtic
distribution(normally distributed surface)