The Early Reading First program provided grants that were designed to enhance teacher practices, instructional content, and classroom environments in preschools to ensure that young children, especially those from low-income families, start school with the skills needed for academic success....

In household telephone surveys, a long field period may be required to maximize the response rate and achieve adequate sample sizes. However, long field periods can be problematic when measures of seasonally affected behavior are sought. Surveys of child care use are one example because child...