This article discusses the use of propensity scoring in experimental program evaluations to estimate impacts for subgroups defined by program features and participants' program experiences. The authors discuss estimation issues and provide specification tests. They also discuss the use of an overlooked data collection design--obtaining predictions…

This study examined the efficacy of an after-school program, the Challenging Horizons Program (CHP), that met four days a week and focused on improving organization, academic skills, and classroom behavior. The CHP was compared with a community control that included involvement in a district-run after-school program that met one to three days a…

Parents' goal orientations in parent-child reminiscing were examined in this study, where 28 preschoolers (mean age = 46 months) experienced a standardized event. Dyads discussed the event that evening, with parents randomly assigned to either an "outcome-oriented" or a "process-oriented" condition. Outcome-oriented parents, who were told that…

The effects of fluency intervention strategies on students fluency rate, comprehension, and word identification were the focus of this study. Both the experimental and control groups were first grade classes, taught by the same teacher, at Elder Primary School in Sandersville, Georgia. The study was conducted over a 15-week period. The results of…

Using data from an experimental evaluation of the New Hope project, an anti-poverty program that increased employment and income, this study examined the effects of New Hope on entry into marriage among never-married mothers. Among never-married mothers, New Hope significantly increased rates of marriage. Five years after random assignment, 21…

As part of a professional development initiative helping secondary school teachers use assessment data to guide their instruction, teachers in this study changed their knowledge, skills and dispositions. Over time, they were able to identify assessments, administer these assessments, interpret the results and plan instruction. As a result, the…

This article examines the effect of the Massachusetts workforce development system on the earnings of disadvantaged adults using nonexperimental data from the late 1990s. The authors construct a comparison sample for program participants using individuals who apply for and are offered services yet do not participate in a training program. They…

PURPOSE: The purpose of this article was to test the effects of vocal loading in healthy, peripubescent teenage boys. It was hypothesized that select acoustic measures, ratings of physical appearance of the larynx, and self-ratings of physical effort and vocal quality in the experimental group would significantly change in response to 2 hr of…

It is often of interest to estimate partial or semipartial correlation coefficients as indexes of the linear association between 2 variables after partialing one or both for the influence of covariates. Squaring these coefficients expresses the proportion of variance in 1 variable explained by the other variable after controlling for covariates.…

The potential impact of implicit learning on education has been repeatedly stressed, though little research has examined this connection directly. The current paper describes two experiments that, inspired by artificial grammar learning experiments, examine the utility of implicit learning as a method for teaching atomic bonding rules to 11-12…

It was hypothesized that stuttering may be related to impaired sensory gating, leading to overflow of superfluous disturbing auditory feedback and breakdown of the speech sequence. This hypothesis was tested using the "acoustic startle prepulse inhibition" (PPI) paradigm. A group of 22 adults with developmental stuttering were compared…

The Rhythmic Movement Test (RMT) evaluates temporal and amplitude parameterization and fluency of movement execution in a series of rhythmic arm movements under different sensory conditions. The RMT was used in combination with a jumping and a drawing task, to evaluate 36 children with Developmental Coordination Disorder (DCD) and a matched…

We tested a procedure designed to enhance psychology students' learning from educational videos. Introductory psychology students (N = 127) watched a video about social psychology during a regular class session. Students in some sections of the course watched the video with no special instructions; students in other sections answered 8 guiding…

The effects of a career development course on career decision-making self-efficacy were investigated. The course was primarily designed to help undecided students with career decision making. A pretest-posttest nonequivalent group design compared students who completed the course (n = 30) with a quasi-control group of students who were enrolled in…

Recent research indicates that individuals with nonthalamic subcortical (NS) lesions can experience difficulties processing lexical ambiguities in a variety of contexts. This study examined how prior processing of a lexical ambiguity influences subsequent meaning activation in 10 individuals with NS lesions and 10 matched healthy controls.…