Data were taken from Waves 3, 4, and 5 of the National Youth Survey, a prospective, longitudinal, national household probability sample of males and females both in and out of school who were 11-17 years old in 1976. The measurement interval between waves was 1 year; Wave 5 respondents were interviewed in 1980. Complete data were obtained for 1,234 youths. The analysis combined four hypotheses into a structural equation model. Findings did not support Hirschi's hypothesis that illegal behavior influences delinquent bonding more than the reverse. Instead, results reinforced the conclusions of Menard and Elliott¦s temporal order and path analyses of Elliott and colleagues, indicating that delinquent bonding has a direct positive influence on illegal behavior. Results also indicated reciprocal influences among delinquent bonding, belief, and illegal behavior, making it difficult or impossible to identify a properly specified cross-sectional model. Overall, the results were generally consistent with the integrated theory of juvenile delinquency. Figures, tables, and 24 references (Author abstract modified)