Abstract

closely with David L. Featherman in the design, collection, and management of the data on which this analysis is based. Any opinions, findings, conclusions, or recommendations are those of the authors and do not necessarily reflect the views of the National Science Foundation or other supporting agencies. SOCIOLOGICAL METHODS & RESEARCH. Vol. 6 No. 2. November 1977 Biases due to measurement errors in an earnings function for nonblack males are assessed by estimating unobserved variable models with data from the Income