In evaluating for kurtosis, or the flatness or peakedness of the distribution, the variables followed a mesokurtic
or normal distribution.
With respect to kurtosis, most items had values indicating a mesokurtic
distribution, with the exception of item 11 (-1.28), with a flatter distribution (platykurtic), and items 12 (2.60) and 16 (1.65), whose values suggest a leptokurtic distribution.
In contour I, 56%, 22%, and 22% of the stations showed platykurtic, mesokurtic
, and leptokurtic characteristics, respectively.
We set the mesokurtic
case v = 2 (normal distributions) as the benchmark case below for other analyses where shape is constant.
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
. The fine grain size at the North Asdaa Town is due to selectiveness of the wind, which is concentrated at the dune.
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.