In three experiments, human participants pressed the space bar on a computer keyboard to earn points on random-ratio (RR) and random-interval (RI) schedules of reinforcement. Verbalized contingency awareness (CA) for each schedule was measured after the entire task (Experiments 1 and 2), or after each RR-RI trial (Experiment 3). In all three…

This study uses word information scores from the Medical Research Council (MRC) Psycholinguistic Database to analyse word development in the spontaneous speech data of six adult learners of English as a second language (L2) in a one-year longitudinal study. In contrast to broad measures of lexical development, such as word frequency and lexical…

Check In/Check Out (CICO) is a secondary tier intervention for those students who are not responsive to universal tier, school-wide positive behavioral interventions and supports. The present study extended the implementation of CICO to six students with emotional and behavioral disorders in a residential facility whose behaviors were maintained…

In studies of change in education and numerous other fields, interest often centers on how differences in the status of individuals at the start of a period of substantive interest relate to differences in subsequent change. In this article, the authors present a fully Bayesian approach to estimating three-level Hierarchical Models in which latent…

The point estimate of sample coefficient alpha may provide a misleading impression of the reliability of the test score. Because sample coefficient alpha is consistently biased downward, it is more likely to yield a misleading impression of poor reliability. The magnitude of the bias is greatest precisely when the variability of sample alpha is…

The Maine Department of Education wanted to use longitudinal data from its data system to better understand whether and how student and school characteristics are associated with student performance on the state-mandated Maine High School Assessment (MHSA). It was particularly interested in understanding the factors associated with changes in test…

Using assessment results for 5th and 8th grade English language learner students in New Hampshire, Rhode Island, and Vermont, the report finds that the English language domains of reading and writing (as measured by a proficiency assessment) are significant predictors of performance on reading, writing, and mathematics assessments and that the…

Using assessment results for 5th and 8th grade English language learner students in New Hampshire, Rhode Island, and Vermont, the report finds that the English language domains of reading and writing (as measured by a proficiency assessment) are significant predictors of performance on reading, writing, and mathematics assessments and that the…

The effectiveness of the Self-Appraisal Questionnaire (SAQ) in providing estimates for predicting violent and nonviolent recidivism over a 9-year period is examined. The SAQ is a quantitative risk/need instrument consisting of 72 items that compose eight subscales. There were 657 federally sentenced Canadian male offenders who completed the SAQ…