Estimating Means and Standard Deviations From Partial Data—An Empirical Check on Lord's Item Sampling Technique

Lord, Frederic M. "Tests of the Same Length Do Have the Same Standard Error of Measurement." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, XIX ( 1959), 233-239.

Lord, Frederic M. "Use of the True-Score Theory to Predict Moments of Univariate and Bivariate Observed-Score Distributions ." Psychometrika, XXV (1960), 325-342.

Lord, Frederic M. "Estimating Norms by Item Sampling." EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, XXII (1962), 259-267.

Lord, Frederic M. Estimating Moments by Item-Sampling—Small-Sample Formulas. Research Bulletin 63-1 Princeton : Educational Testing Service , 1963.