Some cross-population comparisons of family bias in the effects of schooling on occupational status

It is a truism of research on social stratification that the effects of socioeconomic or family background on educational attainment and adult success lead to biases in the simple regressions of occupational status (or other putative outcomes of schooling) on educational attainment. The present analysis compares findings of family bias in the effects of schooling on occupational status across samples of siblings drawn from the Wisconsin Longitudinal Study and from Olneck's sample of brothers from Kalamazoo, Michigan. The comparative analysis shows that family bias in the effect of schooling on occupational status may be much less than is commonly believed and that very large samples may be needed to measure it reliably. Moreover, the analysis suggests that estimates of family bias are very sensitive to the specification of response variability in schooling. The analysis also illustrates some useful methods for cross-population comparison of structural equation models.