Jeffrey Douglas
Biographic Data
| ID | 5545468 |
|---|---|
| NAME | Jeffrey Douglas |
| GIVEN NAMES | Jeffrey |
| FAMILY NAME | Douglas |
| SIGNATURE | DOUGLAS J |
| AFFILIATIONS | University of Illinois Urbana-Champaign |
| VERIFIED | No |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 4 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2009 |
| H-INDEX | 0 |
Constraint-Weighted a -Stratification for Computerized Adaptive Testing With Nonstatistical Constraints
a-stratification is a method that utilizes items with small discrimination (a) parameters early in an exam and those with higher a values when more is learned about the ability parameter. It can achieve much better item usage than the maximum information criterion (MIC). To make a-stratification more practical and more widely applicable, a method for weighting the item selection process in a-stratification as a means of satisfying multiple test c…
On the Use of Nonparametric Item Characteristic Curve Estimation Techniques for Checking Parametric Model Fit
The purpose of this study was to assess the model fit of a 2PL through comparison with the nonparametric item characteristic curve (ICC) estimation procedures. Results indicate that three nonparametric procedures implemented produced ICCs that are similar to that of the 2PL for items simulated to fit the 2PL. However for misfitting items, especially nonmonotone items, the greatest difference is between the 2PL and kernel smoothing procedures. In …
Techniques For Developing Health Quality of Life Scales for Point of Service Use
A Randomized, Controlled Trial to Improve Advance Care Planning Among Patients Undergoing Cardiac Surgery
BACKGROUND: Although many healthcare providers and researchers consider it necessary to assist patients with end-stage chronic illnesses to plan for the end of life, they tend to avoid discussing end-of-life issues with patients before major surgery. Consequently, surgical patients and their families generally have insufficient knowledge to make plans in case of life-threatening complications. OBJECTIVE: The objective of this study was to evaluat…
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A Randomized, Controlled Trial to Improve Advance Care Planning Among Patients Undergoing Cardiac Surgery
BACKGROUND: Although many healthcare providers and researchers consider it necessary to assist patients with end-stage chronic illnesses to plan for the end of life, they tend to avoid discussing end-of-life issues with patients before major surgery. Consequently, surgical patients and their families generally have insufficient knowledge to make plans in case of life-threatening complications. OBJECTIVE: The objective of this study was to evaluat…
Techniques For Developing Health Quality of Life Scales for Point of Service Use
On the Use of Nonparametric Item Characteristic Curve Estimation Techniques for Checking Parametric Model Fit
The purpose of this study was to assess the model fit of a 2PL through comparison with the nonparametric item characteristic curve (ICC) estimation procedures. Results indicate that three nonparametric procedures implemented produced ICCs that are similar to that of the 2PL for items simulated to fit the 2PL. However for misfitting items, especially nonmonotone items, the greatest difference is between the 2PL and kernel smoothing procedures. In …
Constraint-Weighted a -Stratification for Computerized Adaptive Testing With Nonstatistical Constraints
a-stratification is a method that utilizes items with small discrimination (a) parameters early in an exam and those with higher a values when more is learned about the ability parameter. It can achieve much better item usage than the maximum information criterion (MIC). To make a-stratification more practical and more widely applicable, a method for weighting the item selection process in a-stratification as a means of satisfying multiple test c…
Advanced Statistical Modeling Techniques (2 works) · Computer Science (2 works) · Econometrics (2 works) · Mathematics (2 works) · Medicine (2 works) · Nursing (2 works) · Psychology (2 works) · Psychometric Methodologies and Testing (2 works) · Statistics (2 works) · Advance care planning (1 works)