This dissertation describes an experiment to investigate how learners with different levels of background in computer science learn core concepts of computer science, in particular, algorithms. We designed a study to focus on cognitive task analysis for eliciting the empirical mental elements of learning two graph algorithms. Cognitive workload…

In the realm of language proficiency assessments, the domain description inference and the extrapolation inference are key components of a validity argument. Biber et al.'s description of the lexicogrammatical features of the spoken and written registers in the T2K-SWAL corpus has served as support for the TOEFL iBT test's domain description and…

A key piece of a validity argument for a language assessment tool is clear overlap between assessment tasks and the target language use (TLU) domain (i.e., the domain description inference). The TOEFL 2000 Spoken and Written Academic Language (T2K-SWAL) corpus, which represents a variety of academic registers and disciplines in traditional…

The concurrent validity of a computer assisted test construction system designed to measure information in the medical sciences was assessed. Results support the usefulness of the system. (Author/JKS)

Describes a study of college students that investigated the interaction between instructional mode and testing mode. Computer learning and testing versus paper-and-pencil methods are compared, and treatments for the experimental and control groups are described. Areas for further research are suggested. (20 references) (LRW)

To date, the majority of computerized adaptive testing (CAT) systems for achievement and aptitude testing have been based on the dichotomous item response models. However, current research with polychotomous model-based CATs is yielding promising results. This study extends previous work on nominal response model-based CAT (NR CAT) and compares…

The instructional validity of computer administered tests was studied with a focus on whether differences in test scores and item behavior are a function of instructional mode (computer versus non-computer). In the first of 3 studies, performance test scores for approximately 400 high school students in 1990-91 for tasks accomplished with the…

Discussion of the use of microcomputers in education focuses on the use of microcomputers for evaluation purposes. A study that collected performance data on both college students and the evaluation instrument is described, reliability and validity of the test are discussed, and the use of microcomputers to redesign instructional systems is…

This article reports the development, validation and use of a survey for assessing students' perceptions of their e-learning environments. The Online Learning Environment Survey (OLES) was administered to 325 students, 131 in Australia and 194 in Hong Kong. The data were analysed to examine 1) the reliability and validity of the survey, 2)…

This keynote address reported on the current state of science education in three areas: curriculum development, attitudes toward science, and assessment in science. Three major projects in science curriculum reform were the focus of the section on curriculum development: (1) Project 2061; (2) Scope, Sequence, and Coordination; and (3) Earth…