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.

Reliability of the Assisting Hand Assessment (AHA) for Children and Youth with Acquired Brain Injury

Abstract: Introduction: The ability to use both hands to interact with objects is required in daily activities and is therefore important to measure in clinical practice. The Assisting Hand Assessment (AHA) is unique in evaluating the function of a child or youth's assisting hand, through observing the spontaneous manipulation of objects during bimanual activity. The AHA was developed for children with unilateral motor impairment, and shows strong psychometric properties when used with children who have cerebral palsy (CP) or obstetric brachial plexus palsy (OBPP). The AHA is currently used in clinical practice with children who have an acquired brain injury (ABI), however there is limited research on the measurement properties of its use with this population. Objectives: The study aimed to determine the interrater and intrarater reliability of the AHA for children and youth with unilateral motor impairment following ABI. Methods: For interrater reliability, two occupational therapists (OT1 and OT2) independently rated the same 26 children and youth. For intrarater reliability, OT2 conducted a second assessment on the 26 participants 1 week later. Association between item scores on the AHA were analysed using weighted kappa (Kw), while intraclass correlation coefficients (ICCs) were used for domain and total scores. Results: The AHA items demonstrated good to excellent intrarater reliability (Kw = 0.67-1.00). Interrater reliability was good to excellent (Kw=0.60-0.84) for 20 of the 22 items of the AHA. Interrater and intrarater reliability coefficients for all domain and total scores were in the excellent range (ICC = 0.85-0.99). Conclusion: The current study indicates that the AHA shows good interrater and intrarater reliability when used with the paediatric ABI population. Findings provide preliminary support for the continued use of the AHA for children and youth with acquired hemiplegia.

Inter-Rater and Intra-Rater Reliability of the Bahasa Melayu Version of Rose Angina Questionnaire:

Abstract: The objective of the study is to translate the Rose Questionnaire (RQ) into a Bahasa Melayu version and adapt it cross-culturally, and to measure its inter-rater and intrarater reliability. This cross sectional study was conducted in the respondents' homes or workplaces in Kelantan, Malaysia. One hundred respondents aged 30 and above with different socio-demographic status were interviewed for face validity. For each inter-rater and intra-rater reliability, a sample of 150 respondents was interviewed. Inter-rater and intra-rater reliabilities were assessed by Cohen's kappa. The overall inter-rater agreements by the five pair of interviewers at point one and two were 0.86, and intrarater reliability by the five interviewers on the seven-item questionnaire at poinone and two was 0.88, as measured by kappa coefficient. The translated Malay version of RQ demonstrated an almost perfect inter-rater and intra-rater reliability and further validation such as sensitivity and specificity analysis of this translated questionnaire is highly recommended.

Improving Maintainability And Reliability Through Design

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Reliability and Robustness in Real-Time Control Applications

Abstract: The risk of flooding due to measurement errors, equipment and software defaults or power failures is the highest priority of wet-weather management of collection systems. It is consequently not surprising that safety and reliability issues are raised when looking at the automatic control of sewer networks for better CSO control. If not properly designed, a Real Time Control (RTC) strategy can initiate actions that threaten public safety by causing flooding and structural damages in the absence of quality measurements. For this reason, it is mandatory that all RTC schemes implemented guarantee robust and safe management for all possible degraded situations including the worst case scenario that can happen. The concept of reliability can be largely associated with system performance and especially the difference between the measured performances and those expected. Therefore, one way of guaranteeing system reliability consists in implementing a system for which degraded modes are the exception rather than the rule. To reach such an objective, reliable sensors, actuators, radios, gates, pumps recognized in the industry for their robustness and long life expectancy should be purchased. Equipment redundancy can also be used to improve the reliability of the system. Specifically, two or three water level sensors can be used at strategic locations to guarantee that a valid measurement level will always be available at these sites. Equipment redundancy enables to define data validation procedures and, therefore, to improve the quality of the information process to the decision-making system. Consequently, less uncertainties are introduced in the control strategy and better system performance can be achieved. The telecommunication architecture can also be designed to minimize the frequency of degraded situations due to breakdowns in communications. To achieve this goal, different communication mediums and multiple communication channels can be implemented. Therefore, if a communication link is lost, other channels can be used to process the information between the local control points and the central station. During degraded situations, system reliability must be guaranteed by the implementation of degraded control modes. For maximal performance, each control station will have its own set of degraded management modes in relation to the communication status and the configuration of the station. All degraded modes will be specifically designed to guarantee the protection of the citizen and of the sewer network while achieving the best possible management performance considering available information. The degraded modes will be characterized in terms of the anomaly itemized.