In this study we evaluated the stability of item parameters and student scores, using the pre-equated (pre-pandemic) parameters from Spring 2019 and post-equated (post-pandemic) parameters from Spring 2021 in two calibration and equating designs related to item parameter treatment: re-estimating all anchor parameters (Design 1) and holding the…

With Response to Intervention (RTI) increasingly used for identification for special education services, interventions are systematically being implemented and evaluated to improve achievement for students with disabilities. This descriptive study provides baseline data on RTI interventions and tiered instruction from 15 school districts (5 large,…

Based on literature and research on discussion and on educational techniques to improve discussion moderators behaviors, a training program was developed for pre- and in-service teacher educators, business and industry executives and university professors (23 to 28 hours, three and a half days). This program was tested for its effectiveness with…

Since the 1996/97 school year, the state of North Carolina has awarded bonuses of up to $1,500 to teachers in schools that exhibit test score gains above certain thresholds. This article reviews the details of the bonus program, describes patterns of differences between schools that qualify for bonuses of differing amounts, and presents basic data…

The GED (General Educational Development) Tests are widely used to certify a high school level of academic knowledge and skills. The popularity and profound influence of the GED Tests have solicited numerous studies on the outcomes of obtaining a GED credential. Most studies on labor market outcomes for GED credential recipients have targeted…

Eta-Squared (ES) is often used as a measure of strength of association of an effect, a measure often associated with effect size. It is also considered the proportion of total variance accounted for by an independent variable. It is simple to compute and interpret. However, it has one critical weakness cited by several authors (C. Huberty, 1994;…

Monte Carlo methods were used to investigate the effects of removing extreme data points identified by five indices of influence. Multivariate normal data were simulated and observations were removed from samples if they exceeded the criteria suggested in the literature for each influence statistic. Factors included in the design of the Monte…

The need to determine eligibility for a program for intellectually gifted students resulted in combining deviation scores on achievement, aptitude, ability and motivation measures into a matrix score. These matrix scores and the students' success in the program were determined for present participants. Students were classified as successful or…

Nonparametric procedures are often more powerful than classical tests for real world data, which are rarely normally distributed. However, there are difficulties in using these tests. Computational formulas are scattered throughout the literature, and there is a lack of availability of tables of critical values. This paper brings together the…

More than 150 public relations practitioners responded to a survey designed to identify and clarify factors associated with evaluative research in public relations. Responses indicated that (1) no more than half the practitioners formally evaluate their public relations activities on a regular basis; (2) the majority of evaluation is done…

In the present study Monte Carlo methods were employed to evaluate the degree to which canonical function and structure coefficients may be differentially sensitive to sampling error. Sampling error influences were investigated across variations in variable and sample (n) sizes, and across variations in average within-set correlation sizes and in…

The parallel analysis method for determining the number of components to retain in a principal components analysis has received a recent resurgence of support and interest. However, researchers and practitioners desiring to use this criterion have been hampered by the required Monte Carlo analyses needed to develop the criteria. Two recent…

With increasing environmental problems, there is a large social demand for environmental policy. Education is a powerful source to fulfill this demand and the Foundation for Environmental Education in Europe's (FEEE's) Eco School program aims to develop awareness of environmental issues and sustainability among elementary and secondary school…

A series of field tests run over a 2 year period assessed the ability of 125 special education and regular teachers (5 inservice and 1 preservice group) to detect and accurately describe basic attributes of reading miscues before and after training using the Hypothesis/Test Reading Modules. A surprising outcome was the virtual lack of spontaneous…

The effects of skewed theta distributions on indices of differential item functioning (DIF) were studied, comparing Mantel Haenszel (N. Mantel and W. Haenszel, 1959) and DFIT (N. S. Raju, W. J. van der Linden, and P. F. Fleer) (noncompensatory DIF). The significance of the study is that in educational and psychological data, the distributions one…