To successfully navigate an uncertain world, one has to learn the relationship between cues (e.g., wind speed, atmospheric pressure) and outcomes (e.g., rain). When learning, it is possible to actively manipulate the cue values to test hypotheses about this relationship directly. Across two studies, we investigated how 5- to 7-year-olds actively…

As educational practitioners and policymakers expand the range of student outcomes they assess, student perception surveys--particularly those targeting social-emotional learning--have grown in popularity. Despite excitement around the potential for measuring a wider array of important student outcomes, concerns about the validity of the…

Two recent reports contend that the introduction of school choice can promote economic development in economically distressed urban areas. The first report, published by EdChoice, presents a case study of a charter school that has, according to the report, contributed to the economic development of the city of Santa Ana, California. The second…

A rich tradition in developmental psychology explores physical reasoning in infancy. However, no research to date has investigated whether infants can reason about physical objects that behave probabilistically, rather than deterministically. Physical events are often quite variable, in that similar-looking objects can be placed in similar…

Objective: Statway is a community college pathways initiative developed by the Carnegie Foundation for the Advancement of Teaching designed to accelerate students' progress through their developmental math sequence to acquiring college math credit in statistics. Statway is a multifaceted change initiative designed to address the complex problems…

The purpose of this study is to understand how teachers make sense of data from a complex set of reading assessments and how inferences they derive from the data affect decisions about instruction. There are two key research questions--1) How does a teacher's developing expertise with a complex set of assessments (assessment literacy) affect the…

Assessment systems that track children's progress across time need to be sensitive to the variegated nature of development. Although instruments are commonly designed to assess behaviors within a specific age range, some children advance slower or faster than others and, as a result, often show behaviors from a younger or older age group. This…

Purposes: This study investigates the role of formal and informal leaders in the diffusion of external reforms into schools and to teachers' practices. Formal leaders are designated by their roles in the formal organization of the school (e.g., principals, department chairs, and instructional coaches) and informal leaders refer to those who do not…

Within the context of a mathematics reform effort to implement algebra in elementary schools, there is a pressure to provide results in the form of student achievement scores. However, widely-used measures of student achievement may be unrelated to the ideas and instructional practices encouraged by the reform effort. The inappropriate use of…

Individual differences in response to a given treatment have been a longstanding interest in education. While many evaluation studies focus on average treatment effects (i.e., the effects of treatments on the levels of outcomes of interest), this paper additionally considers estimating the effects of treatments on the dispersion in outcomes.…

Reliable and current data is the foundation upon which good public policymaking is built. While California collects a good deal of data on its teaching workforce, policymakers have lacked a state-level data and analysis system to provide answers to even some of the most basic questions: How many credential holders actually take jobs? In what types…

This project involves the collaboration of researchers with 24 teachers in a study aimed at investigating and improving the vocabulary knowledge and reading comprehension of 4th and 5th grade students for whom English is a second language. Cross sectional and longitudinal data were collected on various aspects of vocabulary knowledge, vocabulary…