Table 3.

NSS total and subscale scores, demographics and psychometric test results compared by cluster 1 and 2 built upon hierarchical cluster analysis within HFA subgroup (t tests or non-parametric Wilcox tests were applied depending on distribution of data; scales compared by Wilcox test grayed).

Significant values are in bold.

Cluster comparison revealed significant differences on NSS total and all subscales except sensory perception. Moreover, there was a significant difference in mean IQ with lower intelligence level in Cluster 1.

*p < 0.05, **p < 0.01, ***p < 0.001.