Authors: Kopec, JA Schultz, SE Goel, V Williams, JI

Citation: Ja. Kopec et al., Can the Health Utilities Index measure change?, MED CARE, 39(6), 2001, pp. 562-574

Authors: Ruiz-Primo, MA Schultz, SE Li, M Shavelson, RJ

Citation: Ma. Ruiz-primo et al., Comparison of the reliability and validity of scores from two concept-mapping techniques, J RES SCI T, 38(2), 2001, pp. 260-278