NLSY79 Appendix 27: IRT Item Parameter Estimates, Scores and Standard Errors

National Longitudinal Survey of Youth - 1979 Cohort

NLSY79 Appendix 27: IRT Item Parameter Estimates, Scores and Standard Errors

Item response theory (IRT) item parameter estimates, scores and standard errors have been calculated for several attitudinal scales administered in multiple NLSY79 survey years as well as in other NLS cohorts. The following PDF files provide detailed descriptions of the creation procedures for these scales: