Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K): Third Grade Methodology Report

摘要

This methodology report provides technical information about the development, design, and conduct of the third grade data collection of the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K). It begins with an overview of the ECLS-K study. Subsequent chapters provide information on the development of the instruments, sample design, data collection methods, data preparation and editing, response rates, and weighting and variance estimation.