期刊
INTERNATIONAL JOURNAL OF REHABILITATION RESEARCH
卷 34, 期 2, 页码 181-185出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MRR.0b013e3283460e7d
关键词
classification; latent class analysis; medical illustration; multivariate analysis; rehabilitation
The aim of our study was to develop a graphical tool that can be used in addition to standard statistical criteria to support decisions on the number of classes in explorative categorical latent variable modeling for rehabilitation research. Data from two rehabilitation research projects were used. In the first study, a latent profile analysis was carried out in patients with cancer receiving an inpatient rehabilitation program to identify prototypical combinations of treatment elements. In the second study, growth mixture modeling was used to identify latent trajectory classes based on weekly symptom severity measurements during inpatient treatment of patients with mental disorders. A graphical tool, the Class Evolution Tree, was developed, and its central components were described. The Class Evolution Tree can be used in addition to statistical criteria to systematically address the issue of number of classes in explorative categorical latent variable modeling. International Journal of Rehabilitation Research 34:181-185 (C) 2011 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
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