This study was conducted to investigate the effects of eco-schools on elementary school students' environmental literacy levels. Data of the study were gathered from 316 students enrolled to two elementary schools. One of the schools was determined as experimental group (n = 156) and students attending this school received eco-school application.…

Attrition occurs when study participants who were assigned to the treatment and control conditions do not provide outcome data and thus do not contribute to the estimation of the treatment effects. It is very common in experimental studies in education as illustrated, for instance, in a meta-analysis studying "the effects of attrition on baseline…

In this study the authors test whether matching using intact local groups improves causal estimates over those produced using propensity score matching at the student level. Like the recent analysis of Wilde and Hollister (2007), they draw on data from Project STAR to estimate the effect of small class sizes on student achievement. They propose a…

In this paper the authors extend recent work on mediation in a multilevel setting and on causal inference under interference among units to develop a template for the mediation analysis of group randomized educational interventions. The present work will contribute to the literature on interference, in particular on interference in the context of…

The present paper describes the recruitment and site selection process that has been underway since January 2011, with particular emphasis on the use of Mahalanobis distance score to determine matched pairs of sites prior to randomization to treatment and control groups. Through a systematic winnowing process, the authors found that they could…

In this experiment, the authors sought to further examine the effects of pretests on later learning. Specifically, they were interested in if activating a correct mental representation on the pretest would improve later learning and if activating an incorrect representation would impair learning. Kindergarteners and preschoolers were split into…

The Great Recession from December 2007 to June 2009 is associated with a dramatic weakening of the labor market from which the labor market is now only slowly recovering. The unemployment rate remains stubbornly high and durations of unemployment are unprecedentedly long. I use data from the Displaced Workers Survey (DWS) from 1984-2010 to…

This research has been aimed to demonstrate the effects of dance education on preadolescent children. A total of 114 students (56 of whom in dance group/58 in control group) at preadolescent (aged 11 [plus or minus] 0.0 year) and adolescent (aged 14 [plus or minus] 0.0 year) stages participated in the research. Prior to dance classes a variety of…

This study presents the results of an efficacy evaluation of a web-based brief motivational alcohol prevention/intervention program called "Michigan Prevention and Alcohol Safety for Students" (M-PASS). Four on-line sessions providing individually-tailored feedback were delivered to first-year college students over 9 weeks. Non- and…

A randomized posttest-only control group experimental design was used to determine the effects of regulatory self-questioning on secondary-level career and technical education students' electrical circuit theory test scores. Students who participated in the self-questioning group were asked to answer a list of regulatory questions as they solved…

An intensive phonics-based intervention program for nine-year-old Swedish pupils with reading difficulties was performed. Pupils (N = 112) were randomly assigned to either an intervention or a control group. The training was tailored to the Swedish transparent orthography and designed for one-to-one-tutoring during twelve weeks. Previously,…

The present study examined the verbal learning performance and the semantic organization used by Greek reading-disabled readers as compared to a control group using a list-learning task. The sample consisted of 45 elementary school children with reading difficulties and 45 comparison children matched for age and gender. Tests of reading ability,…

A common recommendation for implementing time-out procedures is to include a release contingency such that the individual is not allowed to leave time-out until no problem behavior has occurred for a specific amount of time (e.g, 30 s). We compared a fixed duration time-out procedure to a release contingency time-out procedure with 4 young…

Increased intraindividual variability in response time (RTSD) has been observed reliably in attention-deficit/hyperactivity disorder (ADHD) and has often been used as a measure of inattention. RTSD is assumed to reflect attentional lapses and distractibility, though evidence for the validity of this connection is lacking. We assessed whether RTSD…

The purpose of this study is to determine the effect of gender on the organizational commitment of teachers. In this respect, the levels of organizational commitment were also investigated with organizational commitment. Fifteen master and doctorate theses done between 2005-2009 were analyzed using meta analysis. At the end of the research study,…