Research across multiple fields finds that adult-youth relationships are key influencers of development; however, professional learning about relational practice is limited. This suggests the need for targeted, efficient ways to help adults improve relational practice. We present a randomized controlled trial of Simple Interactions, a…

Estimating treatment effects for subgroups defined by posttreatment behavior (i.e., estimating causal effects in a principal stratification framework) can be technically challenging and heavily reliant on strong assumptions. We investigate an alternative path: using bounds to identify ranges of possible effects that are consistent with the data.…

Increasingly, researchers are interested in questions regarding treatment-effect variation across partially or fully latent subgroups defined not by pretreatment characteristics but by postrandomization actions. One promising approach to address such questions is principal stratification. Under this framework, a researcher defines endogenous…

Research increasingly points to the importance of parental engagement in children's education. Yet, little research has investigated whether prompting parents to be more involved in college processes improves student outcomes. We investigate experimentally whether providing both students and their parents with personalized outreach about tasks…

In this article, the authors address what is called the "summer melt," where academically-accomplished, college-intending high school graduates fail to enroll anywhere in the year following high school, or do not attend the quality of institution (measured, for instance, by graduation rates) at which they have the academic credentials to…

Head Start programs currently provide early childhood education and family support services to more than 900,000 low-income children and their families across the United States with an annual budget of around $8 billion in state and federal funds. Researchers and policy makers have debated the program's effectiveness since its inception in 1964.…

Research has shown that low-income students especially struggle with evaluating financial aid offers and completing all necessary requirements to enroll after paying a deposit to a particular college in the spring (Authors, 2009). Motivated by these empirical results, the authors conducted three studies that showed students who were explicitly…

This study seeks to answer the following question: Are impacts on Head Start classroom quality associated with impacts of Head Start on children's learning and development? This study employs a variety of descriptive and quasi-experimental methods to explore the role of classroom quality as a mediator or mechanism of Head Start impacts. This…

Despite decades of policy intervention to increase college entry among low-income students, considerable gaps by socioeconomic status remain. To date, policy makers have largely overlooked the summer after high school as an important time period in students' transition to college. In Summer 2012, the authors designed a randomized trial to…