William P Skorupski
Biographic Data
| ID | 6205032 |
|---|---|
| NAME | William P Skorupski |
| GIVEN NAMES | William P |
| FAMILY NAME | Skorupski |
| SIGNATURE | SKORUPSKI W P |
| AFFILIATIONS | University of Kansas, Lawrence, KS, USA |
| VERIFIED | No |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 2 |
| AUTHOR COUNT | 4 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2013 |
| H-INDEX | 1 |
A Method for Imputing Response Options for Missing Data on Multiple-Choice Assessments
When missing values are present in item response data, there are a number of ways one might impute a correct or incorrect response to a multiple-choice item. There are significantly fewer methods for imputing the actual response option an examinee may have provided if he or she had not omitted the item either purposely or accidentally. This article applies the multiple-choice model, a multiparameter logistic model that allows for in-depth distrac…
The Effects of Small Sample Size on Identifying Polytomous DIF Using the Liu–Agresti Estimator of the Cumulative Common Odds Ratio
This study is an evaluation of the behavior of the Liu—Agresti estimator of the cumulative common odds ratio when identifying differential item functioning (DIF) with polytomously scored test items using small samples. The Liu—Agresti estimator has been proposed by Penfield and Algina as a promising approach for the study of polytomous DIF but no simulation study focusing on small samples has analyzed this estimator regarding effect size, Type I …
A Comparison of Approaches for Improving the Reliability of Objective Level Scores
This study is an evaluation of the psychometric issues associated with estimating objective level scores, often referred to as ‘‘subscores.’’ The article begins by introducing the concepts of reliability and validity for subscores from statewide achievement tests. These issues are discussed with reference to popular scaling techniques, classical test theory, and item response theory. Methods for increasing the reliability of subscore estimates th…
Expanding Secondary Attainment in the United States, 1940–80
In this article, the authors examine the growth of secondary school attainment in the United States between 1940 and 1980, exploring several different conceptual frames of reference. Using state-level data, the authors identify a diffusion model of educational expansion using a fixed-effects panel regression approach. This method is used to analyze change over time, with particular attention to evaluating nonlinear processes of growth. The author…
Expanding Secondary Attainment in the United States, 1940–80
In this article, the authors examine the growth of secondary school attainment in the United States between 1940 and 1980, exploring several different conceptual frames of reference. Using state-level data, the authors identify a diffusion model of educational expansion using a fixed-effects panel regression approach. This method is used to analyze change over time, with particular attention to evaluating nonlinear processes of growth. The author…
The Effects of Small Sample Size on Identifying Polytomous DIF Using the Liu–Agresti Estimator of the Cumulative Common Odds Ratio
This study is an evaluation of the behavior of the Liu—Agresti estimator of the cumulative common odds ratio when identifying differential item functioning (DIF) with polytomously scored test items using small samples. The Liu—Agresti estimator has been proposed by Penfield and Algina as a promising approach for the study of polytomous DIF but no simulation study focusing on small samples has analyzed this estimator regarding effect size, Type I …
A Comparison of Approaches for Improving the Reliability of Objective Level Scores
This study is an evaluation of the psychometric issues associated with estimating objective level scores, often referred to as ‘‘subscores.’’ The article begins by introducing the concepts of reliability and validity for subscores from statewide achievement tests. These issues are discussed with reference to popular scaling techniques, classical test theory, and item response theory. Methods for increasing the reliability of subscore estimates th…
Expanding Secondary Attainment in the United States, 1940–80
In this article, the authors examine the growth of secondary school attainment in the United States between 1940 and 1980, exploring several different conceptual frames of reference. Using state-level data, the authors identify a diffusion model of educational expansion using a fixed-effects panel regression approach. This method is used to analyze change over time, with particular attention to evaluating nonlinear processes of growth. The author…
A Method for Imputing Response Options for Missing Data on Multiple-Choice Assessments
When missing values are present in item response data, there are a number of ways one might impute a correct or incorrect response to a multiple-choice item. There are significantly fewer methods for imputing the actual response option an examinee may have provided if he or she had not omitted the item either purposely or accidentally. This article applies the multiple-choice model, a multiparameter logistic model that allows for in-depth distrac…
Econometrics (3 works) · Mathematics (3 works) · Psychology (3 works) · Psychometric Methodologies and Testing (3 works) · Statistics (3 works) · Advanced Statistical Modeling Techniques (2 works) · Item response theory (2 works) · Logistic regression (2 works) · Psychometrics (2 works) · Advanced Statistical Methods and Models (1 works)