According to the given information what type of statistical tests were used in this study? and what were the major key findings?

Social Workers' Mean Scores on Scales Measuring Attitudes toward Homosexuality and Heterosexism, by Gender (N = 187) Gender Men (n = 52) Women (n = 135) Men-women Total sample Item means for total sample IAH 31.7 29.6 2.1 30.2 1.3 ATL 15.5 13.8 1.7 14.3 1.6 ATG 19.6 18.1 1.5 18.5 2.1 Heterosexism Scale 30.5 27.9 2.6* 28.6 2.2 ATG-ATL 4.1*** 4.3*** 4.2*** NOTES: IAH = Index of Attitudes toward Homosexuality (Hudson & Ricketts, 1980); ATL= Attitudes toward Lesbi- ans scale (Herek, 1988); ATG = Attitudes toward Gay Men scale (Herek, 1988). Range for IAH items was 0 to 4; range for the other scale items was 1 to 5, with the low score representing less homophobia or heterosexism. "Paired t test on difference between means for the ATG and the ATL scales. Independent samples t test on difference between means for men and women. *p