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    Title: Development of a Tablet-based symbol digit modalities test for reliably assessing information processing speed in patients with stroke
    Authors: Tung, Li-Chen
    Yu, Wan-Hui
    Lin, Gong-Hong
    Yu, Tzu-Ying
    Wu, Chien-Te
    Tsai, Chia-Yin
    Chou, Willy
    Chen, Mei-Hsiang
    Hsieh, Ching-Lin
    Contributors: Chi Mei Med Ctr, Dept Phys Med & Rehabil
    Natl Taiwan Univ, Sch Occupat Therapy, Coll Med
    I Shou Univ, Dept Occupat Therapy
    Natl Taiwan Univ Hosp, Dept Psychiat
    I Shou Univ, E Da Hosp, Dept Phys Med & Rehabil
    Chia Nan Univ Pharm, Dept Recreat & Hlth Care Management
    Chung Shan Med Univ, Sch Occupat Therapy
    Chung Shan Med Univ Hosp, Occupat Therapy Room
    Natl Taiwan Univ Hosp, Dept Phys Med & Rehabil
    Keywords: Information processing speed
    practise effect
    random measurement error
    Symbol Digit Modalities Test
    Date: 2016
    Issue Date: 2018-01-18 11:37:46 (UTC+8)
    Publisher: Taylor & Francis Ltd
    Abstract: Purpose: To develop a Tablet-based Symbol Digit Modalities Test (T-SDMT) and to examine the test-retest reliability and concurrent validity of the T-SDMT in patients with stroke. Methods: The study had two phases. In the first phase, six experts, nine college students and five outpatients participated in the development and testing of the T-SDMT. In the second phase, 52 outpatients were evaluated twice (2 weeks apart) with the T-SDMT and SDMT to examine the test-retest reliability and concurrent validity of the T-SDMT. Results: The T-SDMT was developed via expert input and college student/patient feedback. Regarding test-retest reliability, the practise effects of the T-SDMT and SDMT were both trivial (d = 0.12) but significant (p <= 0.015). The improvement in the T-SDMT (4.7%) was smaller than that in the SDMT (5.6%). The minimal detectable changes (MDC%) of the T-SDMT and SDMT were 6.7 (22.8%) and 10.3 (32.8%), respectively. The T-SDMT and SDMT were highly correlated with each other at the two time points (Pearson's r = 0.90-0.91). Conclusions: The T-SDMT demonstrated good concurrent validity with the SDMT. Because the T-SDMT had a smaller practise effect and less random measurement error (superior test-retest reliability), it is recommended over the SDMT for assessing information processing speed in patients with stroke.
    Relation: Disability and Rehabilitation, v.38 n.19, pp.1952-1960
    Appears in Collections:[Dept. of Recreation and Health-Care Management] Periodical Articles

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