Journal ArticleDOI
Sample size and optimal designs for reliability studies
TLDR
A functional approximation to earlier exact results is shown to have excellent agreement with the exact results and one can use it easily without intensive numerical computation.Abstract:
A method is developed to calculate the required number of subjects k in a reliability study, where reliability is measured using the intraclass correlation rho. The method is based on a functional approximation to earlier exact results. The approximation is shown to have excellent agreement with the exact results and one can use it easily without intensive numerical computation. Optimal design configurations are also discussed; for reliability values of about 40 per cent or higher, use of two or three observations per subject will minimize the total number of observations required.read more
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Journal ArticleDOI
Performance characteristics of the verbal QuickDASH.
TL;DR: In this paper, the authors evaluated the performance of the verbal Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) questionnaire by assessing its replication of self-administered scores, its test-retest reliability, and its rate of scorable completion compared with its selfadministered, written administration.
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Intraobserver reliability of 4 physiologic movements of the shoulder in subjects with and without symptoms.
Rachel E. Valentine,Jeremy Lewis +1 more
TL;DR: With the exception of painful shoulder flexion in the group of subjects with symptoms, the single-measure ICC results were very good to excellent and the highest SE of measurement values were 5.3 degrees for the angular measurements and 1.6 cm for the linear measurements.
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Ultrasound measures of supraspinatus tendon thickness and acromiohumeral distance in rotator cuff tendinopathy are reliable.
TL;DR: This study aimed to examine the intrarater and interrater reliability of US measurements of AHD and SsT thickness in asymptomatic control subjects and patients with RC tendinopathy.
Journal ArticleDOI
Test–retest reliability, validation, and “minimal detectable change” scores for frequently reported tests of objective physical function in patients with non-dialysis chronic kidney disease
Thomas J. Wilkinson,Soteris Xenophontos,Douglas W. Gould,Barbara Perez Vogt,João L. Viana,Alice C. Smith,Alice C. Smith,Emma L. Watson +7 more
TL;DR: The ISWT, STS-60, e1RM, and CPET are reliable tests of function in CKD and the MDC can help researchers and rehabilitation professionals interpret changes following an intervention.
Journal ArticleDOI
Accuracy of High-Speed Video Analysis to Diagnose Primary Ciliary Dyskinesia.
Bruna Rubbo,Amelia Shoemark,Claire L. Jackson,Robert A. Hirst,James Thompson,Joseph Hayes,Emily Frost,Fiona Copeland,Claire Hogg,Christopher O'Callaghan,Isabel C. Reading,Jane S. Lucas,Jane S. Lucas +12 more
TL;DR: HSVA can be reliably used to counsel patients and commence treatment on the day of testing while awaiting confirmatory investigations, and has high interobserver agreement for “PCD‐positive” outcomes.