DiTrapani J, Rockwood N, Jeon M. Explanatory IRT analysis using the SPIRT macro in SPSS. TQMP. 2018;14(2):81-98. doi: 10.20982/tqmp.14.2.p081
Bailey D, Nelson LM, Hebbeler K, Spiker D. Modeling the impact of formal and informal supports for young children with disabilities and their families. Pediatrics. 2007 Oct 1;120(4):e992-e100.
Whalley D, Huels J, McKenna SP, van Assche D. The benefit of pimecrolimus (Elidel, SDZ ASM 981) on parents' quality of life in the treatment of pediatric atopic dermatitis. Pediatrics. 2002 Dec 1;110(6):1133-6.