Articles and reports: 12-001-X197800254830Description: The problems of dealing with non-response at various stages of survey planning are discussed with implications for the mean square error, practicality and possible advantages and disadvantages. Conceptual issues of editing and imputation are also considered with regard to complexity and levels of imputation. The methods of imputation include weighting, duplication, and substitution of historical records. The paper includes some methodology on the bias and variance.Issue Number: 1978002Author(s): Gray, G.B.; Platek, RichardMain Product:Survey Methodology