Several validity typologies are overviewed then integrated. The integrated framework is used to contrast the positions of Campbell and Cronback. The current practice and logic of quasi-experimentation is critiqued, and expansions beyond the primary focus of dominant validity typologies are suggested. (BS)

The use of segmented polynomial models is explained. Examples of design matrices of dummy variables are given for the least squares analyses of time series and discontinuity quasi-experimental research designs. Linear combinations of dummy variable vectors appear to provide tests of effects in the two quasi-experimental designs. (Author/BW)

In an effort to maintain internal validity while maximizing the generalizability of evaluation results, the theory-testing methodology that links program activities to outcomes (program theory) is proposed. To evaluate a program by explicating and testing the program theory is to perform evaluation as theory testing. (PN)

Changes made in 1981 to the Aid to Families with Dependent Children (AFDC) program under the Omnibus Budget Reconciliation Act were evaluated. Multiple quasi-experimental designs (interrupted time series, non-equivalent comparison groups, and simple pre-post designs) used to address evaluation questions illustrate the issues faced by evaluators in…

The purpose of this study was to determine the effect of using concept mapping to promote reflective instructional decision-making among junior level education preservice teachers when planning lessons for elementary and secondary students. The researchers were interested in determining if there was a connection between the use of concept mapping…

Online education has become a central element of the discourse on higher education. There seems to be an overall drive toward online learning given the mounting need for flexibility in scheduling and the daily emergence of communication technologies and capabilities. Online education is presented as a means of conveying instruction to an extensive…

Test-based education reform efforts continue to limit the number of minority teachers in the United States. Minority-serving institutions face numerous challenges in recruiting and preparing highly qualified minority teacher candidates for the academic demands of a changing teaching climate and the influx of a diverse student population in public…

This study explored the efficacy of web-based instruction in topics in elementary school mathematics in fostering teachers' confidence and competence in using instructional technology, and thereby promoting more positive attitudes toward using computers and Internet resources in the mathematics classroom. The results indicated that students who…

Conducting scientifically rigorous evaluations of character education interventions is complex. This evaluation guide is presented as a resource primarily for project directors who are federal grantees embarking on an evaluation of a character education intervention, although it contains useful information that can benefit other education…

Multiple measures administered in repeated waves within a nonequivalent dependent variables quasi-experimental design were used to test the effects of a reform-oriented instructional method called Enhanced Anchored Instruction (EAI) on the math achievement of 128 middle school students, including students with learning disabilities (LD). EAI…

This study investigated the effectiveness of conceptual change texts in remediating high school students' alternative conceptions concerning chemical equilibrium. A quasi-experimental design was used in this study. The subjects for this study consisted of a total 78 tenth-grade students, 38 of them in the experimental group and 40 of them in the…

The researchers of this study selected four pragmatic research questions that distance learning administrators with high-enrolling Independent Study courses, similar to those that Brigham Young University offers through its Department of Independent Study, may be interested in exploring. These questions included: (1) When tutoring services are…

We employed a quasi-experimental design using pre/post surveys and comparisons with control groups to examine the impact of the Constitutional Rights Foundation's CityWorks (U.S.A.) curriculum. In particular, we assessed its ability to further democratic aims by supporting the development of three forms of social capital: norms of civic…

The "MTP-Math/Science" curricula specifically target the teaching and learning of children at risk of early school failure, a population for whom achievement gaps in mathematics and science are visible even in Pre-K years. "MTP-Math" is based on Focal Areas defined by the National Council of Teachers of Mathematics (NCTM)…

In a time of evolving Algebraic standards and expectations for Minnesota teachers and students, the establishment of quality professional development and technical assistance can help educators move more confidently toward greater mathematics understanding and, subsequently, successful teaching and learning. To this end, the Minnesota Department…