Application of Proportional Reduction Loss Formula to Distinguish Adaptive and Innovative Products and Services

This article describes a method for determining interrater reliability of adaptive and innovative products and services. Using Kirton's ( 1989 ) A-I theory, judges rated 29 products and services using a 5-point Likert scale. Percentage of agreements and Proportional Reduction Loss (PRL) coeffic...

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Bibliographic Details
Published in:Creativity research journal 2008-04, Vol.20 (2), p.231-233
Main Authors: Cabra, John F., Joniak, Andrew J.
Format: Article
Language:English
Subjects:
Creativity
Likert scale
Reliability
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Summary:This article describes a method for determining interrater reliability of adaptive and innovative products and services. Using Kirton's ( 1989 ) A-I theory, judges rated 29 products and services using a 5-point Likert scale. Percentage of agreements and Proportional Reduction Loss (PRL) coefficients (Rust & Cooil, 1994 ) were calculated to identify products and services that were either clearly adaptive or clearly innovative. Judges consistently identified examples of A or I products and services.
ISSN:1040-0419
1532-6934
DOI:10.1080/10400410802060216