These proceedings contain the papers of the 18th International Conference on Cognition and Exploratory Learning in the Digital Age (CELDA 2021), held virtually, due to an exceptional situation caused by the COVID-19 pandemic, from October 13-15, 2021, and organized by the International Association for Development of the Information Society…

The importance of computational skill for answering items in the quantitative thinking subtest of the Iowa Tests of Educational Development was investigated. Results show that computational skill is not a major factor contributing to the examinee's score on the subtest. (Author/GK)

This study investigated the effects of specific criteria for marking a test on its reliability and validity. Eight algebra word problems were administered to grade 10 students. The objectivity of scoring criteria improved the reliability of the test, but did not affect its validity. (MNS)

Test validity, coaching, the college admissions process, and achievement tests are discussed by the director of the Iowa Testing Programs. Data published on the SAT are examined. It is suggested that systematic instruction in problem-solving skills may improve not only test performance but also skills the test is designed to assess. (Author/MLW)

The development of the Test of Logical Thinking (TOLT), a group test of formal reasoning ability that requires students to solve problems and to justify the solutions obtained, is presented. Procedures are described for investigations of internal consistency, construct validity, and criterion-related validity. Items used in prior research serve as…

This study focused on the validation of Generalizable Reasoning Skills assessment instruments with students with disabilities in secondary vocational programs. Results indicated that student self-ratings, teacher ratings, and a performance test were internally consistent and precise measures of reasoning skills for some uses but that most…

The purpose of this project was to construct a valid and reliable noncurriculum specific measure of integrated science process skills intended for use with middle school students. The major efforts in test development were focused on the refinements and modifications of the set of objectives and test items assessed by the existing Middle Grades…

This study is second in a series demonstrating that achievement tests are multidimensional and that using psychologically meaningful subscores in national educational surveys can enhance test validity and usefulness. National Education Longitudinal Study 1988 (NELS:88) 8th- and 10th-grade science tests were subjected to full information item…