Because schools worldwide use low-stakes tests to make important decisions, value-added indices computed from test scores must accurately reflect student learning, which requires equal test-taking effort across testing occasions. Evaluating change in effort assumes effort is measured equivalently across occasions. We evaluated the longitudinal…

Over the past 20 years, there has been much research on how people learn from case comparisons. This work has implemented comparison activities in a variety of different ways across a wide range of laboratory and classroom contexts. In an effort to assess the overall effectiveness of case comparisons across this diversity of implementation and…

Objective: To assess beliefs about the role of diet in cancer prevention among individuals considering genetic testing for Lynch Syndrome. Design: Family-centered, cascade recruitment; baseline assessment of a longitudinal study. Setting: Clinical research setting. Participants: Participants were 390 persons, ages 18 and older, including persons…

Researchers often compare the relationship between an outcome and covariate for two or more groups by evaluating whether the fitted regression curves differ significantly. When they do, researchers need to determine the "significance region," or the values of the covariate where the curves significantly differ. In analysis of covariance (ANCOVA),…

The practice for identification in the area of specific learning disability has historically included IQ testing and comparing the sub-tests for a discrepancy. Unfortunately, this discounted students whose IQ was too high for the MR (mental retardation) category but did not have high discrepancies among sub-tests. These "flat-liners" could not be…

This investigation reports on the cross-cultural equivalence testing of the Self-Description Questionnaire II (short version; SDQII-S) for Indigenous and non-Indigenous Australian secondary student samples. A variety of statistical analysis techniques were employed to assess the psychometric properties of the SDQII-S for both the Indigenous and…

This comprehensive "Handbook" focuses on the most used polytomous item response theory (IRT) models. These models help us understand the interaction between examinees and test questions where the questions have various response categories. The book reviews all of the major models and includes discussions about how and where the models…

The authors center their presentation of material around a conceptual understanding of psychometric issues, such as validity and reliability, and on purpose rather than procedure, the "why" rather than the "how to." Their goal is to introduce psychometric principles at a level that is deeper and more focused than found in introductory…

Theory and research regarding four levels of concept attainment and three uses of concepts as specified by the conceptual learning and development (CLD) model are described. The strategy and objectives of a longitudinal assessment of children's conceptual learning and development are presented. Perspective is provided regarding the role of the…

Theories that posit multiplicative relationships between variables are common in psychology. A. G. Greenwald et al. recently presented a theory that explicated relationships between group identification, group attitudes, and self-esteem. Their theory posits a multiplicative relationship between concepts when predicting a criterion variable.…

After being measured for test anxiety, three groups of participants observed an experimenter, who served as a model, solve sample problems prior to performing themselves. Opportunity to observe a model who verbalized while working on problems and who stated general principles had a positive effect on performance. (Author/KM)

Despite the increasing use of the microgenetic methodology to examine change, the techniques employed to analyse microgenetic data remain fairly unsophisticated. This paper reviews the existing ways of analysing such data and describes their limitations. We use two recent studies to illustrate how modelling can avoid these problems and reveal…

A presentation of arguments demonstrating piaget's sensorimotor stages in Hebb's terms, and the suggestion for performing a computer test. This paper is an early progress report of an attempt to translate some plausible arguments into a rigorous demonstration. (Author)

The aim of the 2018 International Association for Development of the Information Society (IADIS) Cognition and Exploratory Learning in the Digital Age (CELDA) conference was to address the main issues concerned with evolving learning processes and supporting pedagogies and applications in the digital age. There have been advances in both cognitive…

This book uses concepts familiar to those with a working knowledge of basic statistics and classical test theory to present item response theory models that are currently in wide use in both practical testing and research. The book would serve as a good entry-level graduate text in psychometrics and measurement methods. (SLD)