학력
- 서울대학교 교육학과 학사 및 석사
- 미국 University of Iowa, Educational Measurement & Statistics 전공 박사(PhD)
경력
- 미국 University of Iowa, Iowa Testing Programs (ITP), Post-doc
- 세계 최대 검사기관 ACT, Inc. 연구원
- 계명대학교 & 충북대학교 교육학과 (부)교수
- 한국교육평가학회 이사
- 미교육측정학회 National Council on Educational Measurement (NCME)에서 Brenda H. Loyd Outstanding Dissertation Award 수상
- NCME에서 Bradley Hanson Award for Contributions to Educational Measurement 수상(제1회 수상자)
주요 저서/역서
- 행동과학에서의 실험의 설계와 분석 (공저, 교육과학사)
- 교직실무 (공저, 공동체)
- Handbook of Polytomous Item Response Theory Models, Chap. 11 (공저, Routledge)
- Equating Recipes (공저, CASMA, University of Iowa)
- 교육측정 (공역, 학지사)
- 수업중심 교육평가 (공역, 학지사)
주요 논문
* 이하의 논문을 포함한 50편 이상
- An extension of four IRT linking methods for mixed-format tests (공저, Journal of Educational Measurement, 43)
- Robustness to format effects of IRT linking methods for mixed-format tests (공저, Applied Measurement in Education, 19)
- A comparative study of IRT fixed parameter calibration methods (단독, Journal of Educational Measurement, 43)
- Testing the difference between two alpha coefficients with small samples of subjects and raters (공저, Educational and Psychological Measurement, 66)
- A method for estimating classification consistency indices for two equated forms (공저, Applied Psychological Measurement, 31)
- Effects on scale linking of different definitions of criterion functions for the IRT characteristic curve methods (공저, Journal of Educational and Behavioral Statistics, 32)
- A comparison of tests for equality of two or more independent alpha coefficients (공저, Journal of Educational Measurement, 45)
- The estimation of the IRT reliability coefficients and its lower and upper bounds, with comparisons to CTT reliability statistics (공저, Asia Pacific Education Review, 11)
- An extension of least squares estimation of IRT linking coefficients for the graded response model (단독, Applied Psychological Measurement, 34)
- A note on the reliability coefficients for item response model-based ability estimates (단독, Psychometrika, 77)
- Generalization of the Lord-Wingersky algorithm to computing the distribution of summed test scores based on real-number item scores (단독, Journal of Educational Measurement, 50)
- Cronbach's coefficient alpha: Well known but poorly understood (공저, Organizational Research Methods, 18)
- Methods for obtaining a common scale under unidimensional IRT models: A technical review and further extensions (공저, Iowa Testing Programs Occasional Paper No. 52)
- A diagnosis on the performance of BILOG-MG's empirical reliability estimators for IRT ability scores (단독, 교육평가연구, 26)
- 유한혼합분포에 대한 EM 알고리듬을 사용한 다집단 IRT 추정 방법의 원리와 기능 (단독, 교육평가연구, 26)
관심 연구 분야
- 문항반응이론(Item Response Theory: IRT)
- 검사동등화 및 수직척도화(Test Equating & Vertical Scaling)
- 검사/척도 점수의 신뢰도와 타당도/타당화
- 일반화가능도이론(Generalizability Theory)
- 컴퓨터개별적응검사(Computerized Adaptive Testing: CAT)
- 요인분석 및 구조방정식 모형의 적용
- 다층자료 및 패널자료 분석
- 교육 및 심리 검사/척도 제작
- 교육측정평가 응용 컴퓨터 소프트웨어 분석 및 개발(STUIRT, EQUIRT, ICL)