Determining the Efficacy of Intervention: The Use of Effect Sizes for Data Analysis in Single-Subject Research

Jeffrey D. Kromrey; Lynn Foster-Johnson

Journal of Experimental Education Vol. 65, No. 1 (1996) pp. 73–93

Presents use of the effect size as a descriptive statistic for single-subject research. Discusses the way in which effect sizes augment interpretation of results, and reviews four types of treatment effects with case studies. An appendix includes a...

Randomly Missing Data in Multiple Regression: An Empirical Comparison of Common Missing Data Treatments

Jeffrey D. Kromrey; Constance V. Hines

An investigation of the effects of randomly missing data in two-predictor regression analyses is described. The differences in the effectiveness of five common treatments of missing data on estimates of R-squared values and each of the two...

Randomization Regression Tests for Single-Subject Data

Bruce C. Aaron; Jeffrey D. Kromrey

Eastern Educational Research Association 1998 (1998)

In a Monte Carlo analysis of single-subject data, Type I and Type II error rates were compared for various statistical tests of the significance of treatment effects. Data for 5,000 subjects in each of 6 treatment effect size groups were computer...

Screening Items for Bias: An Empirical Comparison of the Performance of Three Indices in Small Samples of Examinees

Jeffrey D. Kromrey; Cynthia G. Parshall

A Monte Carlo study was conducted to compare the performance of three statistical indices of test item bias in small samples of examinees. The statistical indices compared were the Delta method, the Mantel-Haenszel (MH) method, and the...

An Empirical Investigation of Equating Stability in a Single and a Double Linkage Design with Small Sample Sizes Using Angoff Model IV

Pansy Du Bose; Jeffrey D. Kromrey

Empirical evidence is presented of the relative efficiency of two potential linkage plans to be used when equivalent test forms are being administered. Equating is a process by which scores on one form of a test are converted to scores on another...

Breaking Ground for EncStat: A Statistics Anxiety Intervention Program

Freda S. Watson; Thomas R. Lang; Jeffrey D. Kromrey

Annual Meeting of the Florida Educational Research Association (FERA) 2002 (November 2002)

A team of researchers at the University of South Florida is developing a multimedia program to identify and help students with statistics anxiety. This program, EncStat, includes tests that provide information about a student's level of anxiety and...

Another Look at Technology Use in Classrooms: The Development and Validation of an Instrument To Measure Teachers' Perceptions

Kristine Y. Hogarty; Thomas R. Lang; Jeffrey D. Kromrey

Educational and Psychological Measurement Vol. 63, No. 1 (2003) pp. 139–62

Developed and provided initial validation of scores from a survey designed to measure teachers' reported use of technology in their classrooms. Interprets results from a sample of 2000 teachers in terms of the ability of the instrument to measure...

Toward a Conceptual Model for Statistics Anxiety Intervention

Freda S. Watson; Jeffrey D. Kromrey; Melinda R. Hess

Eastern Educational Research Association 2003 (February 2003)

EncStat is a multimedia program under development that is designed to identify students with statistics anxiety or negative attitudes towards statistics. The purpose of this study was to develop a conceptual model of the current state of knowledge...

Intellectual Property and Online Courses: Policies at Major Research Universities

Kathryn Ann Loggie; Ann E. Barron; Elizabeth Gulitz; Tina N. Hohlfeld; Jeffrey D. Kromrey; Phyllis Sweeney

Quarterly Review of Distance Education Vol. 8, No. 2 (2007) pp. 109–125

This study describes an investigation of the intellectual property policies of a stratified random sample of public and private Carnegie Doctoral Research-Extensive Universities. University policies were examined to determine whether or not they...

Nearest Neighbors, Simple Strata, and Probabilistic Parameters: An Empirical Comparison of Methods for Item Exposure Control in CATs

Cynthia G. Parshall; Jeffrey D. Kromrey; J Christine Harmes; Christina Sentovich

Annual Meeting of the National Council on Measurement in Education (NCME) 2001 (April 2001)

Computerized adaptive tests (CATs) are efficient because of their optimal item selection procedures that target maximally informative items at each estimated ability level. However, operational administration of these optimal CATs results in a...

STEM Pathways: Examining Persistence in Rigorous Math and Science Course Taking

Shetay N. Ashford; Rheta E. Lanehart; Gladis K. Kersaint; Reginald S. Lee; Jeffrey D. Kromrey

Journal of Science Education and Technology Vol. 25, No. 6 (2016) pp. 961–975

From 2006 to 2012, Florida Statute §1003.4156 required middle school students to complete electronic personal education planners (ePEPs) before promotion to ninth grade. The ePEP helped them identify programs of study and required high school...

An Analysis of Copyright Policies for Distance Learning Materials at Major Research Universities

Kathryn Ann Loggie; Ann E. Barron; Elizabeth Gulitz; Tina N. Hohlfeld; Jeffrey D. Kromrey; Melissa Venable; Phyllis Sweeney

Journal of Interactive Online Learning Vol. 5, No. 3 pp. 224–242

This study describes an investigation of the intellectual property policies of a stratified random sample of public and private Carnegie Doctoral Research-Extensive Universities. Current copyright law was reviewed as well as the status of the "...

An Assessment Blueprint for EncStat: A Statistics Anxiety Intervention Program

Freda S. Watson; Thomas R. Lang; Jeffrey D. Kromrey; John M. Ferron; Melinda R. Hess; Kristine Y. Hogarty

Annual Meeting of the American Educational Research Association 2003 (2003)

EncStat (Encouraged about Statistics) is a multimedia program being developed to identify and assist students with statistics anxiety or negative attitudes about statistics. This study explored the validity of the assessment instruments included in...

Laptop Computers in Teacher Preparation: Lessons Learned from the University of South Florida Implementation

Ann E. Barron; Carine M. Feyten; Melissa Venable; Amy Hilbelink; Kristine Y. Hogarty; Jeffrey D. Kromrey; Thomas R. Lang

Journal of Computing in Higher Education Vol. 20, No. 1 (September 2008) pp. 95–117

This article provides an overview of the successful laptop implementation in the College of Education at the University of South Florida (USF). The pilot initiative began with one cohort of preservice teachers in 2003; since then, the program has...