Authors: Hedeker, D Siddiqui, O Hu, FB

Citation: D. Hedeker et al., Random-effects regression analysis of correlated grouped-time survival data, STAT ME M R, 9(2), 2000, pp. 161-179

Authors: Siddiqui, O Mott, JA Anderson, TL Flay, BR

Citation: O. Siddiqui et al., Measurements, instruments, scales, and tests - Characteristics of inconsistent respondents who have "ever used" drugs in a school-based sample, SUBST USE M, 34(2), 1999, pp. 269-295

Authors: Siddiqui, O Mott, J Anderson, T Flay, B

Citation: O. Siddiqui et al., The application of Poisson random-effects regression models to the analyses of adolescents' current level of smoking, PREV MED, 29(2), 1999, pp. 92-101