@article {88,
	title = {Assessing self-care and social function using a computer adaptive testing version of the pediatric evaluation of disability inventory},
	journal = {Archives of Physical Medicine and Rehabilitation},
	volume = {89},
	number = {4},
	year = {2008},
	note = {Coster, Wendy JHaley, Stephen MNi, PengshengDumas, Helene MFragala-Pinkham, Maria AK02 HD45354-01A1/HD/NICHD NIH HHS/United StatesR41 HD052318-01A1/HD/NICHD NIH HHS/United StatesR43 HD42388-01/HD/NICHD NIH HHS/United StatesComparative StudyResearch Support, N.I.H., ExtramuralUnited StatesArchives of physical medicine and rehabilitationArch Phys Med Rehabil. 2008 Apr;89(4):622-9.},
	month = {Apr},
	pages = {622-629},
	edition = {2008/04/01},
	abstract = {OBJECTIVE: To examine score agreement, validity, precision, and response burden of a prototype computer adaptive testing (CAT) version of the self-care and social function scales of the Pediatric Evaluation of Disability Inventory compared with the full-length version of these scales. DESIGN: Computer simulation analysis of cross-sectional and longitudinal retrospective data; cross-sectional prospective study. SETTING: Pediatric rehabilitation hospital, including inpatient acute rehabilitation, day school program, outpatient clinics; community-based day care, preschool, and children{\textquoteright}s homes. PARTICIPANTS: Children with disabilities (n=469) and 412 children with no disabilities (analytic sample); 38 children with disabilities and 35 children without disabilities (cross-validation sample). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Summary scores from prototype CAT applications of each scale using 15-, 10-, and 5-item stopping rules; scores from the full-length self-care and social function scales; time (in seconds) to complete assessments and respondent ratings of burden. RESULTS: Scores from both computer simulations and field administration of the prototype CATs were highly consistent with scores from full-length administration (r range, .94-.99). Using computer simulation of retrospective data, discriminant validity, and sensitivity to change of the CATs closely approximated that of the full-length scales, especially when the 15- and 10-item stopping rules were applied. In the cross-validation study the time to administer both CATs was 4 minutes, compared with over 16 minutes to complete the full-length scales. CONCLUSIONS: Self-care and social function score estimates from CAT administration are highly comparable with those obtained from full-length scale administration, with small losses in validity and precision and substantial decreases in administration time.},
	keywords = {*Disability Evaluation, *Social Adjustment, Activities of Daily Living, Adolescent, Age Factors, Child, Child, Preschool, Computer Simulation, Cross-Over Studies, Disabled Children/*rehabilitation, Female, Follow-Up Studies, Humans, Infant, Male, Outcome Assessment (Health Care), Reference Values, Reproducibility of Results, Retrospective Studies, Risk Factors, Self Care/*standards/trends, Sex Factors, Sickness Impact Profile},
	isbn = {1532-821X (Electronic)0003-9993 (Linking)},
	author = {Coster, W. J. and Haley, S. M. and Ni, P. and Dumas, H. M. and Fragala-Pinkham, M. A.}
}
@article {357,
	title = {Measuring physical function in patients with complex medical and postsurgical conditions: a computer adaptive approach},
	journal = {American Journal of Physical Medicine and Rehabilitation},
	volume = {84},
	number = {10},
	year = {2005},
	note = {0894-9115 (Print)Comparative StudyJournal ArticleResearch Support, N.I.H., ExtramuralResearch Support, U.S. Gov{\textquoteright}t, P.H.S.},
	month = {Oct},
	pages = {741-8},
	abstract = {OBJECTIVE: To examine whether the range of disability in the medically complex and postsurgical populations receiving rehabilitation is adequately sampled by the new Activity Measure--Post-Acute Care (AM-PAC), and to assess whether computer adaptive testing (CAT) can derive valid patient scores using fewer questions. DESIGN: Observational study of 158 subjects (mean age 67.2 yrs) receiving skilled rehabilitation services in inpatient (acute rehabilitation hospitals, skilled nursing facility units) and community (home health services, outpatient departments) settings for recent-onset or worsening disability from medical (excluding neurological) and surgical (excluding orthopedic) conditions. Measures were interviewer-administered activity questions (all patients) and physical functioning portion of the SF-36 (outpatients) and standardized chart items (11 Functional Independence Measure (FIM), 19 Standardized Outcome and Assessment Information Set (OASIS) items, and 22 Minimum Data Set (MDS) items). Rasch modeling analyzed all data and the relationship between person ability estimates and average item difficulty. CAT assessed the ability to derive accurate patient scores using a sample of questions. RESULTS: The 163-item activity item pool covered the range of physical movement and personal and instrumental activities. CAT analysis showed comparable scores between estimates using 10 items or the total item pool. CONCLUSION: The AM-PAC can assess a broad range of function in patients with complex medical illness. CAT achieves valid patient scores using fewer questions.},
	keywords = {Activities of Daily Living/*classification, Adult, Aged, Cohort Studies, Continuity of Patient Care, Disability Evaluation, Female, Health Services Research, Humans, Male, Middle Aged, Postoperative Care/*rehabilitation, Prognosis, Recovery of Function, Rehabilitation Centers, Rehabilitation/*standards, Sensitivity and Specificity, Sickness Impact Profile, Treatment Outcome},
	author = {Siebens, H. and Andres, P. L. and Pengsheng, N. and Coster, W. J. and Haley, S. M.}
}
