3 . reliability : l ) split - half reability computers the split - half correlation coefficient of the scale with the date of the 142 effective cases . 2 ) test - retest reliability : selects 30 cases to calculate person correlation coefficient after a month later 3 、信度检验: ( 1 )分半信度:利用正式施测的有效样本142例,计算量表的按因素分半的相关系数。