Spatial analytics receive increased attention in educational data mining. A critical issue in stop detection (i.e., the automatic extraction of timestamped and located stops in the movement of individuals) is a lack of validation of stop accuracy to represent phenomena of interest. Next to a radius that an actor does not exceed for a certain…

The research shared in this conference paper report illustrates how an iterative process to item development that involves expert review and cognitive lab interviews with students can be used to collect evidence of validity for assessment items. Analysis of students' reasoning was also used to expand a model for identifying conceptions and…

This paper presents first results from a research project aimed at combining two theoretical frameworks, one concerning explanations and one related to rationality. The two theoretical lenses are used to understand one episode from a teaching experiment carried out in grade seven, concerning the construction of rectangles with a given perimeter.…

Statement of Problem: Although there is a rapidly increasing interest in creativity in specific domains such as science and math, there are not enough valid and reliable scales to assess students' creativity in these domains. If mathematical creativity potential can be measured, then the curriculum can be adapted to address the needs of creative…

Interactions between teachers and students contribute to the quality of the classroom setting and growing evidence that the affective undertone of these interactions matters when considering outcomes for both the students and the teachers they serve. Although numerous measures of teacher-student interactions exist, relying on self-report or…

The purposes of this study are twofold. First, to investigate the construct or factorial structure of a set of Reading and Mathematics computerized adaptive tests (CAT), "Measures of Academic Progress" (MAP), given in different states at different grades and academic terms. The second purpose is to investigate the invariance of test…

Researchers who make tutoring systems would like to know which sequences of educational content lead to the most effective learning by their students. The majority of data collected in many ITS systems consist of answers to a group of questions of a given skill often presented in a random sequence. Following work that identifies which items…

This paper will describe the relationships between research on learning and its application in assessment models and operational systems. These have been topics of research at the National Center for Research on Evaluation, Standards, and Student Testing (CRESST) for more than 20 years and form a significant part of the intellectual foundation of…

Mathematical proof is one of the most difficult topics for students to learn. Several empirical studies revealed different kinds of students' problems in this area. Our own research suggests that students' views on proofs and their abilities in proving are significantly influenced by their specific mathematics classrooms. However, the reasons for…