Education Commons^™

Usability Testing To Enhance User Experience: The Catquest Usability Study, Aaron Nichols, Amber Billey, Alice Stokes, Peter Spitzform, Catherine Mundy

UVM Libraries Conference Day

After implementing the discovery tool Primo (eventually renamed CATQuest), the UVM Libraries conducted a usability test to understand how our users approach using this tool without instruction, to discover patterns in searching behavior, and to uncover how compatible Primo is with user search behavior. This presentation will demonstrate the design and implementation of the usability study, as well as reveal some surprising results.

The Effects Of Generative Strategies In Instructional Simulations On Learning, Cognitive Load, And Calibration Accuracy, Jennifer R. Morrison

STEMPS Theses & Dissertations

Instructional simulations can provide a powerful medium for learners to interact with a model representing underlying principles of content or phenomena. While a promising medium for developing a learner's own mental model, reviews of simulation learning have revealed less than promising results (Bangert-Drowns, Kulik, & Kulik, 1985; Kulik & Kulik, 1991), perhaps due to the lack of instructional supports inherent with a discovery-based approach. This study examined the use of generative strategies as an instructional support to promote learning from a physics simulation. Generative strategies, originally proposed by Wittrock (1974, 1989), strengthen understanding by prompting learners to create meaning between …

An Analysis Of Factor Extraction Strategies: A Comparison Of The Relative Strengths Of Principal Axis, Ordinary Least Squares, And Maximum Likelihood In Research Contexts That Include Both Categorical And Continuous Variables, Kevin Barry Coughlin

USF Tampa Graduate Theses and Dissertations

This study is intended to provide researchers with empirically derived guidelines for conducting factor analytic studies in research contexts that include dichotomous and continuous levels of measurement. This study is based on the hypotheses that ordinary least squares (OLS) factor analysis will yield more accurate parameter estimates than maximum likelihood (ML) and principal axis factor anlaysis (PAF); the level of improvement in estimates will be related to the proportion of observed variables that are dichotomized and the strength of communalities within the data sets.

To achieve this study's objective, maximum likelihood, ordinary least squares, and principal axis factor extraction models …

Development Of The Chae Optimal Supervision Environment Test, Ki Byung Chae

Dissertations, Theses, and Masters Projects

No abstract provided.

A Preliminary Investigation Of The Validity Of Time-Based Measures Of Sustained Attention For Children, Michael R. Kulfan

Antioch University Full-Text Dissertations & Theses

This study is a preliminary investigation of the validity of using time-based measures to quantify sustained attention in children ages 6-12. Problems with sustained attention negatively affect childhood learning and development. The prevalence of disorders known to impact sustained attention performance continue to rise in the United States. Currently, commercially available, objective measures of sustained attention use normative comparisons that provide limited information about the effect such problems have on child performance in natural settings. We reviewed test data from 290 charts of children ages 6-12 referred for neuropsychological evaluation. The Test of Everyday Attention for Children (TEA-Ch) is an …