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C. J. Van Lissa; M. Garnier-Villarreal; D. Anadria – Structural Equation Modeling: A Multidisciplinary Journal, 2024
Latent class analysis (LCA) refers to techniques for identifying groups in data based on a parametric model. Examples include mixture models, LCA with ordinal indicators, and latent class growth analysis. Despite its popularity, there is limited guidance with respect to decisions that must be made when conducting and reporting LCA. Moreover, there…
Descriptors: Multivariate Analysis, Structural Equation Models, Open Source Technology, Computation
Nason, Erica E.; Wang, Kaipeng; Ausbrooks, Angela R. – Journal of Social Work Education, 2023
This article introduces an open-source software package--R for Qualitative Data Analysis (RQDA). RQDA is an R package for analysis of text-formatted data, which is compatible across operating platforms. It is user-friendly and seamlessly integrates with R, which makes it possible to conduct statistical analyses on qualitative coding. Alternative…
Descriptors: Statistical Analysis, Computer Software, Open Source Technology, Usability
Klugman, Emma M.; Ho, Andrew D. – Annenberg Institute for School Reform at Brown University, 2020
State testing programs regularly release previously administered test items to the public. We provide an open-source recipe for state, district, and school assessment coordinators to combine these items flexibly to produce scores linked to established state score scales. These would enable estimation of student score distributions and achievement…
Descriptors: Test Items, State Programs, Testing Programs, Scores
Kussmaul, Clif – Information Systems Education Journal, 2020
This case describes a classroom activity that explores a fictional software product company to help students learn about ways that businesses make money from software, including Free & Open Source Software (FOSS). The activity shows how a company might evolve through different business models, but does not imply that some models are always…
Descriptors: Class Activities, Computer Software, Computer Science Education, Inquiry
Han, Wencui; Larson, Eric C. – Journal of Information Systems Education, 2022
This case uses data analytic techniques to expose students to the context of the initial coin offering marketplace. The exercise is well-suited as a group activity in an undergraduate or graduate business analytics course in which students have been taught analytic techniques such as word cloud, descriptive statistics, basic visualizations, and…
Descriptors: Information Systems, Information Science Education, Data Analysis, Business Administration Education
Sidou, Lais Feltrin; Borges, Endler Marcel – Journal of Chemical Education, 2020
Principal component analysis (PCA) is one of the most important and powerful methods in chemometrics as well as in a wealth of other areas. Running a PCA results in two main elements, the score plot and the loading plot; the score plot provides the location of the samples, and the loading plot indicates correlations among variables, the trends in…
Descriptors: Factor Analysis, Chemistry, Science Instruction, Teaching Methods
Walker, Amy Schoenfeld – Journalism and Mass Communication Educator, 2019
While some journalists analyze and verify "open source" materials such as social media, eyewitness video, and satellite imagery to hold leaders and institutions accountable, many journalists and students are not learning basic digital verification skills. Research shows that journalists find this work challenging and that newsrooms do…
Descriptors: Journalism, Journalism Education, Ethics, Deception
Hahn, Marcelo Dumas; Cruz, Frederico Alan de Oliveira; Carvalho, Paulo Simeão – Physics Teacher, 2019
When sound waves are taught at the secondary level, the speed of propagation of sound is one of the most important characteristics to be analyzed. However, it is very common in textbooks that the value of sound speed in air is considered constant regardless of the experimental conditions. The great question is that since sound is a mechanical…
Descriptors: Measurement Techniques, Motion, Acoustics, Physics
Leme, José Costa; Oliveira, Agostinho – Physics Teacher, 2017
The purpose of the experiment presented in this paper is to quantify the viscosity of a liquid. Viscous effects are important in the flow of fluids in pipes, in the bloodstream, in the lubrication of engine parts, and in many other situations. In the present paper, the authors explore the oscillations of a physical pendulum in the form of a long…
Descriptors: Science Experiments, Physics, Science Instruction, Scientific Concepts