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
Reliability and validity of the Classroom Observations of Student–Teacher Interactions (COSTI) for kindergarten reading instruction
Keith Smolkowski,Barbara Gunn +1 more
TL;DR: Results indicated that data could be collected reliably and that teachers’ provision of opportunities for independent student practice was stable across the school year, and potential uses of the instrument for providing teachers with feedback on their literacy instruction and for extending the knowledge base on effective literacy instructional practices are discussed.
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Reliability and accuracy of anthropometry performed by community health workers among infants under 6 months in rural Kenya
Martha Mwangome,Greg Fegan,Greg Fegan,Ronald Mbunya,Andrew M. Prentice,Andrew M. Prentice,James A. Berkley,James A. Berkley +7 more
TL;DR: Assessment of the inter‐observer variability and accuracy of Mid Upper Arm Circumference (MUAC) and weight‐for‐length Z score (WFLz) among infants aged <6 months performed by community health workers in Kilifi District, Kenya.
Journal Article
Reliability and validity of the persian version of templer death anxiety scale-extended in veterans of Iran-Iraq warfare
TL;DR: The factor analysis demonstrated that the DAS-E has a multi-dimensional structure and can be used to further research about death anxiety in this population of veterans of Iran–Iraq Warfare.
Journal ArticleDOI
Validation of the Geriatric Oral Health Assessment Index (GOHAI) in the Malay language.
Wan‐Nasir W. Othman,Khairiyah Abd Muttalib,Rugayah Bakri,Jennifer Geraldine Doss,Nasruddin Jaafar,Natifah C. Salleh,Sharon Chen +6 more
TL;DR: The Malay language version of the GOHAI demonstrated acceptable validity and reliability and will be an important instrument to measure oral health-related quality of life among Malay-speaking Malaysians.
Journal ArticleDOI
Minimum detectable change for single-leg-stance-time in older adults.
TL;DR: SLST exhibits poor absolute reliability and appears unlikely to be sensitive to detecting change in performance in geriatric clinical settings and research studies.