Longitudinal studies can produce biased estimates of learning if children miss tests. In an application to summer learning, we illustrate how missing test scores can create an illusion of large summer learning gaps when true gaps are close to zero. We demonstrate two methods that reduce bias by exploiting the correlations between missing and…

This paper is the third in a series of Analytical Insights papers, which provide accessible, up-to-date analysis of educational datasets. The insights in this paper are drawn from the latest National Assessment Program Literacy and Numeracy (NAPLAN) and Longitudinal Literacy and Numeracy in Australia (LLANIA) data to discuss student participation…

This paper is the first in a series of Analytical Insights papers, which provide accessible, up-to-date analysis of educational datasets. This insights paper draws on the latest National Assessment Program Literacy and Numeracy (NAPLAN) data to discuss student participation and engagement with the tests -- factors which impact the quality and…