Open AccessDEPARTMENT OF VETERANS AFFAIRS COOPERATIVE STUDIES PROJECT NUMBER 147
Author(s) -
Harold F. Morris
Publication year - 1993
Publication title -
implant dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.538
H-Index - 65
eISSN - 1538-2982
pISSN - 1056-6163
DOI - 10.1097/00008505-199312000-00004
Subject(s) - veterans affairs , student affairs , medicine , political science , higher education , law
In 1980 the Veterans Administration Cooperative Studies Program No. 147 initiated a multicenter, multidisciplinary clinical study to evaluate the use of alternative alloys for porcelain-fused-to-metal restorations. An investigation of interexaminer agreement was conducted after seven years utilizing three measures of reliability: percentage of exact agreement using a five-point scale, percentage of agreement using a dichotomous (satisfactory-unsatisfactory) scale, and [kappa], a statistic which is intended to measure agreement beyond what would be expected to occur by chance. Exact agreement on the five-point scale ranged from 77 to 99 percent. Percent agreement on the dichotomous scale was above 99 percent for all of the criteria. Kappa ranged from 0.56 to 0.91, indicating moderate to near perfect agreement among examiners. Reliability of the study evaluations reinforced the validity and significance of the findings.