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Chapter 30: Weighting: Principles and Practicalities

Subject: Survey Research

Weighting: Principles and Practicalities
Weighting: principles and practicalities
INTRODUCTION

Weighting is one of the major components in survey sampling. For a given sample survey, each unit of the selected sample is attached a weight (also called an estimation weight) that is used to obtain estimates of population parameters of interest, such as the average income of a certain population. In some cases, the weight of a given unit may be interpreted as the number of units from the population that are represented by this sample unit. For example, if a random sample of 25 individuals has been selected from a population of 100, then each of the 25 sampled individuals may be viewed as representing four individuals of the population.

The weighting process usually involves ...