2. ผลการค้นหา Bivariate correlations among stressor, proposed mediators, and the outcome variable are shown in Table 1. Pearson product moment correlations indicated that the build up of stressors was positively correlated with family distress (outcome), and negatively correlated with the proposed mediators. Family hardiness was negatively related to family distress, and positively related to perceived social support and self-efficacy. Child age was not correlated with any variable, and independent samples t-tests (unequal variances assumed given the uneven group sizes) indicated that there were no differences between mothers of males and females with ASD (all p > .05).