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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.

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Journal ArticleDOI

Intra- and interobserver reliability and agreement in three-dimensional computed tomography measurements of component positions after total knee arthroplasty.

TL;DR: Results suggest that 3D-CT can be used to evaluate the alignment of all TKA components except for the sagittal position of the femur, and showed good intra- and interobserver reliability for the femoral and tibial components in coronal, sagittal and rotational positions.
Journal ArticleDOI

Agreement between adolescents and parents/caregivers in rating the impact of malocclusion on adolescents' quality of life.

TL;DR: Poor agreement was observed between adolescents and their parents/caregivers in rating the impact of malocclusion on adolescents' OHRQoL.
Journal ArticleDOI

Reliability, validity, and minimal detectable change of Side Hop Test in male children and adolescents.

TL;DR: The results support the use of the Side Hop Test to evaluate children and adolescents because the measurements showed good intra-rater and very good inter- rater reliability.
Journal ArticleDOI

The Integral Theory System Questionnaire: an anatomically directed questionnaire to determine pelvic floor dysfunctions in women

TL;DR: The ITSQ proofed accurate and is able to serve as a holistic Pelvic Floor Questionnaire directing symptoms to site-specific pelvic floor reconstructive surgery.
Journal ArticleDOI

Cross-cultural adaptation of VISA-P score for patellar tendinopathy in Turkish population

TL;DR: The translated Turkish version of VISA-P has good internal consistency and good reliability and validity, and is useful to evaluate symptoms and follow the treatment effect in athletes with patellar tendinopathy.
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What is the optimal sample size for DA?

The optimal sample size for DA is not mentioned in the provided information.