The fields of science, technology, engineering, and mathematics, more ubiquitously known by the acronym "STEM," have received a substantial amount of attention in recent years. As part of a research study investigating the alignment (or lack thereof) between the goals and priorities of educators and employers, we found it difficult to…

This study examines whether the classification and regression tree (CART) model improves the early identification of students at risk for reading comprehension difficulties compared with the more difficult to interpret logistic regression model. CART is a type of predictive modeling that relies on nonparametric techniques. It presents results in…

This Core Data Service (CDS) Spotlight focuses on public computing resources, including lab/cluster workstations in buildings, virtual lab/cluster workstations, kiosks, laptop and tablet checkout programs, and workstation access in unscheduled classrooms. The findings are derived from 758 CDS 2012 participating institutions. A dataset of 529…

Data from the National Longitudinal Transition Study-2 (NLTS2) were used to examine (a) the aspects of self-determination assessed in NLTS2 and (b) measurement equivalence and latent differences across the 12 disability categories recognized in IDEA. Three of the four essential characteristics of self-determination - autonomy, self-realization,…

Second language (L2) classroom research has sought to shed light on the processes and practices that develop L2 learners' abilities [Nunan, D. 2004. "Task-based language teaching." London: Continuum; Verplaetse, L. 2014. "Using big questions to apprentice students into language-rich classroom practices." "TESOL…

While Hispanic-Serving Institutions (HSIs) enroll at least 25% Latinx students, the perennial question facing HSIs is, "What does it mean for postsecondary institutions to be Latinx-serving"--essentially an organizational identity question. Guided by the extant literature on organizational identity, culture, and institutionalism and…

Foreign educational credential assessment is responsive to assessors' social, economic, and cultural stimuli. Academic institutions, industries, and governmental bodies treat placement specialists' recommendations as signals of cross-cultural productive capacity, giving significance to the methodology of foreign education-system analysis. A…

This paper proposes to the use of a meta-learning approach for automatic parameter tuning of a well-known decision tree algorithm by using past information about algorithm executions. Fourteen educational datasets were analysed using various combinations of parameter values to examine the effects of the parameter values on accuracy classification.…

The information visualization pipeline serves as a lossy communication channel for presentation of data on a screen-space of limited resolution. The lossy communication is not just a machine-only phenomenon due to information loss caused by translation of data, but also a reflection of the degree to which the human user can comprehend visual…

Background: The Emergency Severity Index (ESI) is an emergency department (ED) triage classification system based on estimated patient-specific resource utilization. Rules for a computerized clinical decision support (CDS) system based on a patient's chief complaint were developed and tested using a stochastic model for predicting ESI scores.…

Classification, clustering and association mining are major tasks of data mining and have been widely used for knowledge discovery. Associative classification mining, the combination of both association rule mining and classification, has emerged as an indispensable way to support decision making and scientific research. In particular, it offers a…

This presentation summarizes a pilot study conducted after the May 2011 administration of the AP Environmental Science Exam. The study used analytical methods based on scaled anchoring as input to a Performance Level Descriptor validation process that solicited systematic input from subject matter experts.

Medical diagnosis can be viewed as a categorization task. There are two mechanisms whereby humans make categorical judgments: "analytical reasoning," based on explicit consideration of features and "nonanalytical reasoning," an unconscious holistic process of matching against prior exemplars. However, there is evidence that prior experience can…

Category learning is a complex phenomenon that engages multiple cognitive processes, many of which occur simultaneously and unfold dynamically over time. For example, as people encounter objects in the world, they simultaneously engage processes to determine their fit with current knowledge structures, gather new information about the objects, and…

Research on sexual violence is often conducted within the qualitative paradigm. However, many writers have described the lack of specific detail provided with regard to decisions and processes involved in transcribing and analyzing this type of data. In this article, I will provide a description and discussion of the organization, categorization,…