(Dataset: gssD. Variables: sibs, relig2, authoritarianism, sex.) Here are two bits of conventional wisdom, beliefs that are widely accepted as accurate descriptions of the world. Conventional Wisdom 1: Catholics have bigger families than do Protestants. (Dependent variable: sibs, number of siblings; independent variable: relig2, "Protestant"/ "Catholic".) Conventional Wisdom 2: Men have stronger authoritarian tendencies than do women. (Dependent variable: authoritarianism, ranging from 0 [low authoritarianism] to 7 [high authoritarianism]; independent variable: sex.)

DATA FROM R:

Conventional Wisdom Conventional Wisdom 2 Mean difference ? Lower 95% CI boundary of mean ? ? difference Upper 95% CI boundary of mean ? ? difference t-statistic ? P-value ? ?> wtd. ttestC(~ sibs, ~ relig2, data = gssD ) Means and Standard Errors: relig2 sibs se Protestant Protestant 3. 666 0.117 Catholic Catholic 3.896 0.176 t-Test Statistics: Mean difference Std. Err t-statistic P-value (two-tailed) -0.230 0. 211 -1. 088 0.277 Lower 95% CI Upper 95% CI -0. 643 0. 184 > wtd. ttest((~ authoritarianism, ~ sex, data = gssD ) Means and Standard Errors: sex authoritarianism se Male Male 2. 656 0.088 Female Female 2. 453 0.077 t-Test Statistics: Mean difference Std. Err t-statistic P-value (two-tailed) 0. 203 0. 117 1. 735 0. 083 Lower 95% CI Upper 95% CI -0. 026 0. 432