![]() Stopping criteria that can be considered are length, precision, classification, or information, and combinations of these criteria are also a possible solution to optimize the performance of the CAT. ![]() The CAT will continue selecting items depending on which administration rules have been determined. The selection of the next item from the item-bank is based on the response option that the participant has chosen on the previous question: after each response the patient's summary score (“theta”) is recalculated, and a next item is selected by the algorithm. 12 – 14 In contrast to long questionnaires including a broad range of items on the health continuum that all must be answered by the patient to accurately measure their ability, a CAT, or tailored test, selects the next question from the item-bank using an algorithm. 11 These item-banks can be used to apply computerized adaptive testing (CAT) and is currently more frequently introduced in health care. 10 Recently, as a proposed solution for the limitations of first- and second-generation PROMs in clinical practice (e.g., logistical, technical) and to reduce patient's burden filling out a PROM to a minimum, item-banks have been developed, which are collections of items across a disability spectrum. To solve measuring and scoring problems regarding first-generation PROMs (in which equidistance between response categories and equal value of items is assumed) second-generation PROMs (in which Item Response Theory is used to calibrate items and respondents on the same scale to provide a better scoring mechanic that takes the psychometric properties of items into account) were developed frequently. In the past, various PROMs were developed. 9 Even though the added value and benefits of measuring and evaluating PROMs are clearly seen by patients, professionals and health care institutes, the implementation of measuring and evaluating PROMs in clinical practice and supporting the effort of the patient to periodically fill out the questionnaires is still a major challenge. 8 Additionally, the assessment of quality of life is increasingly introduced because of the interest of the government and health insurance companies to evaluate the quality of care. Furthermore, patient-reported outcome measures (PROMs) might help clinicians in their communication toward patients. These outcomes are from the patient's own perspective and therefore of direct relevance to them. 4 – 7Įvaluating patients’ disabilities in daily activities and vision-related quality of life has become more important in ophthalmology. 3 Eventually, the loss of vision will cause limitations in physical functioning, daily activities and might have impact on the quality of life. However, for about 15% of these patients anti-VEGF is less effective, resulting in reduced vision (≥10-letter loss). The prevalence of nonrefractive vision impairment, according to the WHO's definition of having a best corrected visual acuity 30%) of their vision after three years’ follow-up. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |