Lori D. McLeod

Expertise

Psychometrics
Patient-Reported Outcomes
Health Status and Quality of Life Assessment
Health Outcomes Strategy

Biography

Lori McLeod, PhD, is head of psychometrics and health outcomes strategy at RTI Health Solutions. She has over 10 years of experience in instrument development and has conducted many psychometric evaluations of both paper-and-pencil and computer-administered instruments. These investigations have included the assessment of scale reliability, validity, and responsiveness. Dr. McLeod previously directed the psychometric procedures related to a large-scale admissions test and contributed to research in computerized adaptive testing such as item response theory. She has published numerous manuscripts in Applied Psychological Measurement, Pharmacoeconomics, Journal of Educational Measurement, and Psychometrika. She also serves as the treasurer of the Psychometric Society. Recently, she has concentrated on developing health outcomes strategies as well as the psychometric evaluation of questionnaires designed to measure health-related quality of life. Dr. McLeod has experience in a wide variety of therapeutic areas including chronic pain, dermatology, oncology, psychiatry, respiratory, sleep disorders, urology, and sexual dysfunction.

Education

PhD, Quantitative Psychology, L.L. Thurstone Psychometric Laboratory, University of North Carolina at Chapel Hill; MA, Quantitative Psychology, L.L. Thurstone Psychometric Laboratory, University of North Carolina at Chapel Hill; BS (summa cum laude), Statistics, Mathematics Education, North Carolina State University.

Selected Publications

Wincze, J., Rosen, R., Carson, C., Korenman, S., Niederberger, C., Sadovsky, R., McLeod, L., Thibonnier, M., & Merchant, S. (2004 Aug). Erection quality scale: initial scale development and validation. Urology, 64 (2):351-356.

McLeod, L., Lewis, C., & Thissen, D. (2003). A Bayesian method for the detection of item preknowledge in computerized adaptive testing. Applied Psychological Measurement, 27 (2):121-137.

Wincze, J.P., Fehnel, S.E., Mcleod, L.D., Granger, A.L., & Merchant, S. (2003). Development and initial testing of a new patient-reported questionnaire-erection quality scale. Value in Health, 6 (6):709-709.

Mcleod, L.D., Fehnel, S.E., Brandman, J., & Symonds, T. (2003). Evaluating minimal clinically important differences for the acne-specific quality of life questionnaire. Pharmacoeconomics, 21 (15):1069-1079.

Fehnel, S.E., Mcleod, L.D., Brandman, J., Arbit, D.I., McLaughlin-Miley, C.J., Coombs, J.H., Martin, A.R., & Girman, C.J. (2002 Dec). Responsiveness of the Acne-Specific Quality of Life Questionnaire (Acne-QoL) to treatment for acne vulgaris in placebo-controlled clinical trials. Quality of Life Research, 11 (8):809-816.

Swygert, K.A., Mcleod, L.D., & Thissen, D. (2001). Factor analysis for items or testlets scored in more than two categories. In Thissen, D., & H. Wainer (Ed.), Test Scoring (Chapter 6, pp. 217-250). Mahwah, NJ: Lawrence Erlbaum Associates.

Mcleod, L.D., Swygert, K.A., & Thissen, D. (2001). Factor analysis for items scored in two categories. In D. Thissen, & H. Wainer (Ed.), Test Scoring (Chapter 5, pp. 189-216). Mahwah, NJ: Lawrence Erlbaum Associates.

Thissen, D., Nelson, L., Rosa, K., & Mcleod, L.D. (2001). Item response theory for items scored in more than two categories. In D. Thissen, & H. Wainer (Ed.), Test Scoring (Chapter 4, pp. 141-186). Mahwah, NJ: Lawrence Erlbaum Associates.

Scrams, D.J., & Mcleod, L.D. (2000). An expected response function approach to graphical differential item functioning. Journal of Educational Measurement, 37 (3):263-277.

Mcleod, L.D., & Lewis, C. (1999). Detecting item memorization in the CAT environment. Applied Psychological Measurement, 23 (2):147-160.

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