In order to integrate technology into the language curriculum, it is essential not only to evaluate a program within a second language acquisition (SLA) framework but also to seek the students' attitudes towards the use of computer-assisted language learning (CALL) materials. Guided by Chapelle's (2001) framework for CALL evaluation, this paper…

Pretest-posttest experimental designs are often used in randomized control trials (RCTs) in the education field to improve the precision of the estimated treatment effects. For logistic reasons, however, pretest data are often collected after random assignment, so that including them in the analysis could bias the posttest impact estimates. Thus,…

Describes a program system which was developed for the purpose of making estimates about the nature of the distribution of test scores which will result from an administration of a test composed of items of which estimates of item-difficulty and discrimination are available. (Author/RC)

High School seniors responded to two semantic differential instruments, containing dissimilar concepts purporting to measure the same variables, both before and after attending a college summer orientation program. Before-after component combinations were found to be highly similar. (Author/RC)

The present authors argued that the covariance analysis is completely valid even if there is a true main effect for pretesting and a second point of the paper involved a recommendation for data analysis if the interaction from ANOVA was significant. (Editor/RK)

A pretest-posttest design for measuring the effects of educational programs uses comparison groups consisting of pupils like those in the treatment group but not getting that particular treatment. Although the design is geared primarily to evaluation of Title I programs in large cities, it should also apply to other situations. The plan for…

The purpose of this paper is to demonstrate the use of the general linear model (GLM) in problems with repeated measures on a dependent variable. Such problems include pretest-posttest designs, multitrial designs, and groups by trials designs. For each of these designs, a GLM analysis is demonstrated wherein full models are formed and restrictions…

A preliminary study was conducted at which the "Test for Economic Understanding" was given to 98 Anglo and 35 Mexican American freshmen and sophomore students at New Mexico State University at the beginning and end of the 1971 fall semester. The following questions guided the investigation: (1) Is there a significant difference between…

A statistical method, Fishers Table of t (or t ratio), is used to determine the statistical significance of a comparison of results from pretests and post-tests of knowledge and skill taken by training program participants. A statistically significant improvement can demonstrate training effectiveness. (MS)

This paper describes the proposed Assessment Center at Mercy College in Dobbs Ferry, New York. The center is intended to provide statistical and technical support for the Mercy College elementary education, special education, and speech and hearing departments in the areas of student assessment, student guidance, and program evaluation. Evaluation…

Livingston's reliability coefficients and Harris' indices of efficiency were computed along with the classical internal consistency coefficients, KR-20's (Kuder-Richardson internal consistency coefficient), for 678 criterion-referenced tests in the A through E levels of an individualized mathematics program. The coefficients were carefully studied…

Conventional methods used for the presentation of pre- and post statistical information generally are deficient in economy and compactness and fail to show internal movement from pre- to posttest. This technique precludes these shortcomings through the presentation of information in a highly visible manner which reveals the strata of internal…

The pretest-posttest design referred to as Design 2 by Campbell and Stanley (1963) is commonly used in educational research and evaluation. The tenability of the assumption of a zero population difference commonly used with this design is questioned. A nonzero population estimate based on the mean difference observed in test-retest reliability…

Introductory psychology students were subjects in an investigation to determine the covariation among achievement, attitudes toward a course, and attitudes taught as part of a course. In addition, data obtained allowed for evaluation of two theoretical models of pretest sensitization, the first in terms of learner involvement and the second in…