Beginning with the 2020/21 school year, the Massachusetts Department of Elementary and Secondary Education (DESE) began an ongoing effort to collect and analyze early literacy screening assessment data from schools and districts participating in certain state grants to inform improvement efforts. Outcome data suggest that the current educational…

By design, randomized experiments (XPs) rule out bias from confounded selection of participants into conditions. Quasi-experiments (QEs) are often considered second-best because they do not share this benefit. However, when results from XPs are used to generalize causal impacts, the benefit from unconfounded selection into conditions may be offset…

Despite decades of research and debate, the issue of unequal outcomes continues to be a concern in educational systems worldwide. In England, published data relating to pupils' attainment across ethnic groups and by class indicators has been used to demonstrate continued inequalities in schools. This article attempts to deconstruct the…