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.

Expert Versus Novice Interrater and Intrarater Reliability of the Frontal Plane Projection Angle During a Single-Leg Squat

Abstract: The high rate of ACL injury has led to the need for large-scale injury risk screening to aid in prevention. Cost and time alternatives to three-dimensional assessments of knee injury risk factors are necessary for largescale, clinical use. The purpose of this study was to determine the expert versus novice interrater reliability and test-retest reliability of the frontal plane projection angle (FPPA) during the single-leg squat (SLS) test. Excellent interrater reliability was demonstrated for session 1 and session 2. Excellent intrarater (i.e., test-retest) reliability was demonstrated for both the novice and expert. The minimal training requirements and excellent reliability of the FPPA during the SLS test make it a key screening tool for large-scale assessment of injury risk.

Reliability and Validity Measurement of Sagittal Lumbosacral Quiet Standing Posture with a Smartphone Application in a Mixed Population of 183 College Students and Personnel.

Abstract: Accurate recording of spinal posture with simple and accessible measurement devices in clinical practice may lead to spinal loading optimization in occupations related to prolonged sitting and standing postures. Therefore, the purpose of this study was to establish the level of reliability of sagittal lumbosacral posture in quiet standing and the validity of the method in differentiating between male and female subjects, establishing in parallel a normative database. 183 participants (83 males and 100 females), with no current low back or pelvic pain, were assessed using the "iHandy Level" smartphone application. Intrarater reliability (3 same-day sequential measurements) was high for both the lumbar curve (ICC2,1: 0.96, SEM: 2.13°, and MDC95%: 5.9°) and the sacral slope (ICC2,1: 0.97, SEM: 1.61°, and MDC95%: 4.46°) sagittal alignment. Data analysis for each gender separately confirmed equally high reliability for both male and female participants. Correlation between lumbar curve and sacral slope was high (Pearson's r = 0.86, p < 0.001). Between-gender comparisons confirmed the validity of the method to differentiate between male and female lumbar curve and sacral slope angles, with females generally demonstrating greater lumbosacral values (p < 0.001). The "iHandy Level" application is a reliable and valid tool in the measurement of lumbosacral quiet standing spinal posture in the sagittal plane.

Study on reliability and validity of Chinese version of Barthel Index

Abstract: Objective To study the reliability and validity of Chinese version of Barthel Index(BI) in evaluating stroke patientsMethods Totally 147 inpatients with acute stroke onset were included in the studyThey were assessed when admitted,at the 14th and 90th day of hospitalization by different raters using the BIIntrarater and interrater reliability were determined by using Kappa correlationThe split-half reliability and internal consistency were evaluated using Cronbach α coefficientConstruct validity was assessed by the factor analysisResults Kappa scores of the repeat reliability and the intrarater reliability had statistic difference(P001)The internal consistency was perfect as demonstrated by the high Cronbach score(0916)KMO score was 0854,Bartlett score had statistic significance(P001)The scores of BI at admission and 15th of hospitalization had positive correlation with 90th of hospitalization(rs=0614,0583,both P001) and also had positive correlation with Scandinavian Stroke Scale(SSS)(rs=0619,0704,0882,all P001) and negative correlation with National Institute of Health Stroke Scale(NHISS)(rs=-0587,-0705,-0790,all P001)Conclusion The reliability and validity of BI are extremely high,and could be proudly used for stoke patients in evaluation of the activity of daily life