Showing papers on "Intra-rater reliability published in 1988"

Reliability of the Modified Motor Assessment Scale and the Barthel Index

Abstract: Many physical therapists use descriptive and functional assessments of motor recovery for patients with stroke. The purpose of this study was to establish the reliability of two such assessments. The Modified Motor Assessment Scale (MMAS) assesses motor recovery; the Barthel Index assesses functional independence. Interrater and intrarater reliability were determined for the total scores and individual item ratings using videotaped MMAS and Barthel Index assessments of seven patients with stroke. Therapists viewed and rated the videotaped assessments on two occasions separated by one month. The intrarater reliability results were higher than the interrater reliability results for total scores, and both results were acceptable statistically. Interrater and intrarater reliability of the individual item ratings were also determined. The MMAS and Barthel Index are reliable assessments of motor recovery and function for patients with stroke. Physical therapists are encouraged to use the two scales to document changes in the motor recovery and functional independence of patients with stroke.

The Reliability of Mechanical Systems

Abstract: Part One: The philosophy, principles, and concepts of reliability engineering The concept of mechanical reliability Operational and cost implications Summary. Part Two: Analysis of in-service reliability experience Analysis of in-service experience for mechanical components Analysis of in-service experience for repairable systems Part Three: A basic approach to reliability assessment for mechanical process systems Uses of reliability assessment The analysis of simple systems Active parallel systems with partial redundancy and systems with standby units Part Four: Techniques for process plant reliability assessment Reliability prediction Fault Tree Analysis Failure Modes and Effects Analysis (FMEA) Complex systems: some further methods of analysis Part Five: Collection and processing of reliability data Introduction to data collection Data requirements and reliability parameters Reliability data collection systems Part Six: Case Studies.

Chemical-system reliability: a review

Abstract: Selected published literature on chemical-system reliability is reviewed. The literature is classified into several categories. These categories include: reliability prediction and analysis; reliability/maintenance/safety; risk analysis, control and assessment; fault diagnosis and propagation; failure analysis and prevention; failure data and analysis; reliability optimization; human reliability; application of reliability engineering to process plant industries; availability analysis; and life-cycle cost and economy. The literature is collected mainly from major journals and conference proceedings. An extensive list of references is presented. >

The impact of educational interventions on the reliability of teachers' assessment of student case reports: a controlled trial.

Abstract: Summary. Assessment of a case report allows for evaluation of the student's information-collecting ability, clinical reasoning and written communication skills. Intrarater reliability of case report evaluation in second-year internal medicine was evaluated and found unacceptably low even after educational interventions. We conclude that for case report assessment to be useful educationally ratings must be obtained from numerous examiners on repeated occasions.

New directions for reliability

Abstract: [This abstract is based on the author's abstract.] Reliability theory used in the United States derives from Wald's sequential analysis developed before World War II. Most reliability test, demonstration, and estimation methods are based on this theor..

The Bellcore Reliability Prediction Procedure (RPP); 1988 edition

Abstract: The authors describe the 1988 edition of the Bellcore Reliability Prediction Procedure for electronic equipment (RPP), with particular emphasis on additions and improvements incorporated in the last four year. They also describe a software system developed by Bellcore to mechanize generation of RPP predictions. The RPP and its automated version, the ARPP, include formulas for both steady-state and infant mortality reliability prediction. In addition to generic reliability prediction, the RPP/ARPP includes methods for reliability prediction using laboratory life test data and field reliability data. >

Limits to Network Reliability

Abstract: Frequently, for computer systems and communication networks a reliability analysis is carried out. However, for “degradable” computer systems a unified measure for performance and reliability is preferable. By degradable we mean that, depending on the history of the computer and on the environment, the system can show various levels of performance. The interplay of reliability and performance is significant for these systems.