KARON FRANCES COOK

Summary

Affiliation: University of Washington
Country: USA

Publications

  1. ncbi request reprint Postscript: emergence of efficiency in health outcomes measurement
    Karon F Cook
    J Appl Meas 11:331-6. 2010
  2. ncbi request reprint IRT health outcomes data analysis project: an overview and summary
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, Washington, USA
    Qual Life Res 16:121-32. 2007
  3. pmc Letting the CAT out of the bag: comparing computer adaptive tests and an 11-item short form of the Roland-Morris Disability Questionnaire
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
    Spine (Phila Pa 1976) 33:1378-83. 2008
  4. pmc Having a fit: impact of number of items and distribution of data on traditional criteria for assessing IRT's unidimensionality assumption
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington, Box 357920, Seattle, WA, 98195 7920, USA
    Qual Life Res 18:447-60. 2009
  5. pmc Development and validation of Patient Reported Impact of Spasticity Measure (PRISM)
    Karon F Cook
    Department of Veterans Affairs Measurement Excellence and Training Resource Information Center, Houston, TX, USA
    J Rehabil Res Dev 44:363-71. 2007
  6. pmc Do somatic and cognitive symptoms of traumatic brain injury confound depression screening?
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA 98105, USA
    Arch Phys Med Rehabil 92:818-23. 2011
  7. doi request reprint Fatigue and aging with a disability
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA, USA
    Arch Phys Med Rehabil 92:1126-33. 2011
  8. pmc Measuring pain in the context of homelessness
    Rebecca Matter
    Center for Technology and Disability Studies, University of Washington, Seattle, WA 98195 7920, USA
    Qual Life Res 18:863-72. 2009
  9. pmc Development of a PROMIS item bank to measure pain interference
    Dagmar Amtmann
    Department of Rehabilitation Medicine, University of Washington, Box 357920, Seattle, WA 98195 7920, USA
    Pain 150:173-82. 2010
  10. ncbi request reprint Differential item functioning impact in a modified version of the Roland-Morris Disability Questionnaire
    Paul K Crane
    Department of Medicine, University of Washington, Harborview Medical Center, 325 Ninth Avenue, Box 359780, Seattle, WA 98104, USA
    Qual Life Res 16:981-90. 2007

Detail Information

Publications21

  1. ncbi request reprint Postscript: emergence of efficiency in health outcomes measurement
    Karon F Cook
    J Appl Meas 11:331-6. 2010
    ..Finally, I argue that psychometrics should play "second fiddle" to larger scientific questions...
  2. ncbi request reprint IRT health outcomes data analysis project: an overview and summary
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, Washington, USA
    Qual Life Res 16:121-32. 2007
    ..A component of the conference was presentation of a psychometric and content analysis of a secondary dataset...
  3. pmc Letting the CAT out of the bag: comparing computer adaptive tests and an 11-item short form of the Roland-Morris Disability Questionnaire
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
    Spine (Phila Pa 1976) 33:1378-83. 2008
    ..A post hoc simulation of a computer adaptive administration of the items of a modified version of the Roland-Morris Disability Questionnaire...
  4. pmc Having a fit: impact of number of items and distribution of data on traditional criteria for assessing IRT's unidimensionality assumption
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington, Box 357920, Seattle, WA, 98195 7920, USA
    Qual Life Res 18:447-60. 2009
    ..This study explored the degree to which the values of these statistics are affected by two characteristics of item banks developed to measure health outcomes: large numbers of items and nonnormal data...
  5. pmc Development and validation of Patient Reported Impact of Spasticity Measure (PRISM)
    Karon F Cook
    Department of Veterans Affairs Measurement Excellence and Training Resource Information Center, Houston, TX, USA
    J Rehabil Res Dev 44:363-71. 2007
    ..Results of reliability and validity assessments indicate that the PRISM subscale scores effectively measure the impact of spasticity in the population of veterans with SCI...
  6. pmc Do somatic and cognitive symptoms of traumatic brain injury confound depression screening?
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA 98105, USA
    Arch Phys Med Rehabil 92:818-23. 2011
    ..To evaluate whether items of the Patient Health Questionnaire 9 (PHQ-9) function differently in persons with traumatic brain injury (TBI) than in persons from a primary care sample...
  7. doi request reprint Fatigue and aging with a disability
    Karon F Cook
    Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA, USA
    Arch Phys Med Rehabil 92:1126-33. 2011
    ..S. population norms. We assessed fatigue and age in a sample of individuals with spinal cord injury (SCI), postpolio syndrome (PPS), multiple sclerosis (MS), and muscular dystrophy (MD)...
  8. pmc Measuring pain in the context of homelessness
    Rebecca Matter
    Center for Technology and Disability Studies, University of Washington, Seattle, WA 98195 7920, USA
    Qual Life Res 18:863-72. 2009
    ..The secondary objective was to increase understanding about the unique experience of homeless people with pain...
  9. pmc Development of a PROMIS item bank to measure pain interference
    Dagmar Amtmann
    Department of Rehabilitation Medicine, University of Washington, Box 357920, Seattle, WA 98195 7920, USA
    Pain 150:173-82. 2010
    ..0001). The results indicated that the PROMIS-PI items constitute a psychometrically sound bank. Computerized adaptive testing and short forms are available...
  10. ncbi request reprint Differential item functioning impact in a modified version of the Roland-Morris Disability Questionnaire
    Paul K Crane
    Department of Medicine, University of Washington, Harborview Medical Center, 325 Ninth Avenue, Box 359780, Seattle, WA 98104, USA
    Qual Life Res 16:981-90. 2007
    ..To evaluate a modified version of the Roland-Morris Disability Questionnaire for differential item functioning (DIF) related to several covariates...
  11. ncbi request reprint A 37-item shoulder functional status item pool had negligible differential item functioning
    Paul K Crane
    Division of General Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA
    J Clin Epidemiol 59:478-84. 2006
    ..We present a technique for determining whether observed differences in function between groups are due to biased test items or real differences in function...
  12. ncbi request reprint Development of a Flexilevel Scale for use with computer-adaptive testing for assessing shoulder function
    Karon F Cook
    Houston Veterans Affairs Parkinson s Research and Educational Center, Houston VAMC, 2002 Holcombe Boulevard, Houston, TX 77030, USA
    J Shoulder Elbow Surg 14:90S-94S. 2005
    ..This simulation is based on the developmental items we tested for use in the FLEX-SF. The results indicate that greater measurement efficiency can be achieved with a computer-adaptive test format...
  13. ncbi request reprint Reliability by surgical status of self-reported outcomes in patients who have shoulder pathologies
    Karon F Cook
    Houston VA Parkinson s Disease Research, Education, and Clinical Center, TX, USA
    J Orthop Sports Phys Ther 32:336-46. 2002
    ..A test-retest design was used to evaluate the reliability of the self-report sections of 4 shoulder pain and disability scales...
  14. pmc Dynamic assessment of health outcomes: time to let the CAT out of the bag?
    Karon F Cook
    Veterans Affairs Measurement of Excellence Training Resource Information Center, Houston Center of Quality Care and Utilization Studies, Houston, TX 77007, USA
    Health Serv Res 40:1694-711. 2005
    ..Perhaps the most important application of IRT is computer-adaptive testing (CAT), a measurement approach in which the selection of items is tailored for each respondent...
  15. ncbi request reprint Mode effects in the center for epidemiologic studies depression (CES-D) scale: personal digital assistant vs. paper and pencil administration
    Richard J Swartz
    Department of Biostatistics, The University of Texas M D Anderson Cancer Center, Houston, 77030, TX, USA
    Qual Life Res 16:803-13. 2007
    ..These results underscore the importance of evaluating the cross-mode equivalence of psychosocial instruments before administering them in non-established modes...
  16. ncbi request reprint Spasticity experience domains in persons with spinal cord injury
    Jane S Mahoney
    School of Nursing, University of Texas Health Science Center, and Menninger Clinic, Houston, TX 77080, USA
    Arch Phys Med Rehabil 88:287-94. 2007
    ..To understand the everyday life experiences of persons who have spasticity associated with spinal cord injury (SCI)...
  17. ncbi request reprint Proxy reports in Parkinson's disease: caregiver and patient self-reports of quality of life and physical activity
    Allison Fleming
    Michael E DeBakey Veterans Affairs Medical Center, Parkinson s Disease Research, Education Clinical Center, Houston, Texas, USA
    Mov Disord 20:1462-8. 2005
    ..These differences should be considered in research design and clinical decision making. Alternative approaches to the measurement of patient relevant outcomes could supplement traditional, retrospective self-reports...
  18. pmc Proxies and other external raters: methodological considerations
    A Lynn Snow
    Houston Center for Quality Care and Utilization Studies, Michael E DeBakey Veterans Affairs Medical Center, Houston, TX 77030, USA
    Health Serv Res 40:1676-93. 2005
    ..We conclude with a discussion of needs for future research...
  19. ncbi request reprint Development and psychometric evaluation of the Flexilevel Scale of Shoulder Function
    Karon F Cook
    Veterans Administration Parkinson s Disease Research, Education and Clinical Center, Houston, Texas 77030, USA
    Med Care 41:823-35. 2003
    ..A more efficient approach is to use modern psychometric methods to construct an adaptive scale in which patients respond only to items that are targeted at their level of shoulder function...