Showing papers on "Intra-rater reliability published in 1985"

Reliability and validity

Abstract: Definition: To what extent does the study allow us to draw conclusions about a causal effect between two or more constructs? Issues: Selection, maturation, history, mortality, testing, regression towrd the mean, selection by maturation, treatment by mortality, treatment by testing, measured treatment variables Increase: Eliminate the threats, above all do experimental manipulations, random assignment, and counterbalancing.

The Abbreviated Injury Scale and Injury Severity Score. Levels of inter- and intrarater reliability.

Abstract: Given the wide usage and proven value of the Abbreviated Injury Scale (AIS) in rating severity of trauma, it is essential that certain reliability issues concerning its application be resolved. This article describes a study designed to address these reliability issues. Each of 15 raters with varying qualifications was asked to identify AIS code injuries sustained by 375 trauma patients admitted to four Baltimore area hospitals. Results showed that as a group, physicians and nurses tend to be more reliable in their ratings than either emergency medical technicians (EMTs) or nonclinical technicians, although a research assistant who is well trained in AIS coding and is a diligent worker can use the AIS to code severity as reliably as the physicians when sufficient information is provided in the medical chart. Reliability of AIS scoring was somewhat higher for blunt (vehicular and nonvehicular) versus penetrating injuries.

Goniometric reliability for a child with spastic quadriplegia.

Abstract: Intrarater and interrater reliabilities were assessed for upper-extremity goniometric measurements of a 5-year-old girl with severe spastic quadriplegia. Percentage agreement was the method used to evaluate goniometric reliability of three motions bilaterally: shoulder flexion, shoulder abduction, and elbow extension. Intrarater reliability for each of the two raters was higher than interrater reliability. The mean differences and the range of differences between raters for each of the six motions measured also were recorded. There was wide variability in measurements both within and between raters. These results suggest that a difference of +/- 10-15 degrees in range of motion over time does not justify conclusions of either significant improvement or significant regression in a child with severe spastic cerebral palsy.