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Study of Existing Metrics Used in Measurement of Ideation Effectiveness

[+] Author Affiliations
Ramesh Srivathsavai, Nicole Genco, Katja Hölttä-Otto

University of Massachusetts Dartmouth, North Dartmouth, MA

Carolyn C. Seepersad

The University of Texas at Austin, Austin, TX

Paper No. DETC2010-28802, pp. 355-366; 12 pages
doi:10.1115/DETC2010-28802
From:
  • ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 22nd International Conference on Design Theory and Methodology; Special Conference on Mechanical Vibration and Noise
  • Montreal, Quebec, Canada, August 15–18, 2010
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4413-7 | eISBN: 978-0-7918-3881-5
  • Copyright © 2010 by ASME

abstract

In recent years, many new idea generation methods have been developed to generate innovative concepts. The effectiveness of those methods is evaluated by applying a set of metrics to the resulting concepts. Several metrics have been proposed for this purpose, including quality, novelty, and variety metrics, but the inter-rater reliability of those metrics has not been investigated extensively. In this paper, the inter-rater reliability of three existing metrics is analyzed by applying them to the results of a representative idea generation study. The effects on inter-rater agreement of analyzing concepts at the overall concept level versus the feature level are investigated, along with the impacts of alternative scales for specific metrics. In general, the inter-rater reliability of the metrics is found to be relatively low, with the most reliable results obtained at the feature level. The use of different scales also affects inter-rater reliability, but the effect is less significant. In addition to their low levels of repeatability, the metrics differ in how novelty is appraised.

Copyright © 2010 by ASME
Topics: Reliability

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