Intra-rater reliability

About: Intra-rater reliability is a research topic. Over the lifetime, 2073 publications have been published within this topic receiving 140968 citations.

Between-day repeatability and symmetry of multifidus cross-sectional area measured using ultrasound imaging.

Abstract: Study Design Prospective test-retest, intrarater reliability study. Objectives To estimate the intrarater reliability, asymmetry, and associated error with measurement of the cross-sectional area (...

Reliability of the Scores for the Finger-to-Nose Test in Adults with Traumatic Brain Injury

Abstract: Background and Purpose. The purpose of this study was to determine the intrarater and interrater reliability of measurements of three clinical features of coordination based on the performance of the “finger-to-nose” test. Subjects. Thirty-seven persons with traumatic brain injury (26 male, 11 female), aged 17 to 64 years (X=29.1, SD=9.9), participated in the study. Methods. Each subject's performance was videotaped and evaluated for the right and left upper extremities (UEs) (two trials each) with respect to the following variables: time of execution, degree of dysmetria, and degree of tremor (four-point ordinal ratings). One year later, five experienced physical therapists (including the original investigator) independently rated each patient's videotaped performance in the same manner as described above. Results. Intraclass correlation coefficients (ICC[3,1])for intrarater reliability were .971 and .986 and ICCs for interrater reliability were .920 and .913 for right and left UEs, respectively, for the time of execution. A generalized Kappa statistic of .54 was calculated for the scoring of dysmetria (both UEs), and Kappa statistics calculated for the scoring of tremor were .18 and .31 for right and left UEs, respectively. Interrater reliability was lower for the scoring of these variables and varied from .36 to .40 for dysmetria and from .27 to .26 for tremor (right and left UEs, respectively). Conclusion and Discussion. These results indicate that physical therapists demonstrate low reliability in assessment of the presence of dysmetria and tremor using videotaped performances of the finger-to-nose test. The results suggest, however, that therapists reliably measure the time of execution of this test. If the limitations associated with therapists' capacity for objective measurement of subjective phenomena cannot be overcome (eg, by establishment of more definitive scoring criteria for the measures of dysmetria and tremor), then therapists should seek alternative methods of evaluation of UE coordination.

GA-based reliability design: state-of-the-art survey

Abstract: As systems have grown more complex, the consequences of their unreliable behavior have become sever in terms of cost, lives, etc. , and the interest in assessing system reliability and the need for improving the reliability of products and systems have become very important. In the past few decades, the field of reliability has grown sufficiently large to include separate specialized subtopics, such as reliability analysis, failure modeling, reliability optimization, reliability growth and its modeling, reliability testing, reliability data analysis, accelerated testing, and life cycle costing. In this paper, we introduce about some GA-based approaches for these reliability design problems, such as GA-based reliability design of redundant system, GA-based reliability design with alternative design, GA-based reliability design with time-dependent reliability, GA-based reliability design with interval coefficients, GA-based bicriteria reliability design, Hybrid GA-based bicriteria reliability design, and GA-based reliability design with fuzzy goals.

Reliability and responsiveness of algometry for measuring pressure pain threshold in patients with knee osteoarthritis.

Abstract: [Purpose] This study aimed to establish the intrarater reliability and responsiveness of a clinically available algometer in patients with knee osteoarthritis as well as to determine the minimum-detectable-change and standard error of measurement of testing to facilitate clinical interpretation of temporal changes. [Subjects] Seventy-three patients with knee osteoarthritis were included. [Methods] Pressure pain threshold measured by algometry was evaluated 3 times at 2-min intervals over 2 clinically relevant sites-mediolateral to the medial femoral tubercle (distal) and lateral to the medial malleolus (local)-on the same day. Intrarater reliability was estimated by intraclass correlation coefficients. The minimum-detectable-change and standard error of measurement were calculated. As a measure of responsiveness, the effect size was calculated for the results at baseline and after treatment. [Results] The intrarater reliability was almost perfect (intraclass correlation coefficient = 0.93-0.97). The standard error of measurement and minimum-detectable-change were 0.70-0.66 and 1.62-1.53, respectively. The pressure pain threshold over the distal site was inadequately responsive in knee osteoarthritis, but the local site was responsive. The effect size was 0.70. [Conclusion] Algometry is reliable and responsive to assess measures of pressure pain threshold for evaluating pain patients with knee osteoarthritis.