Unfolding the phenomenon of interrater agreement: a multicomponent approach for in-depth examination was proposed
OBJECTIVE: The overall objective was to unfold the phenomenon of interrater agreement: to identify potential sources of variation in agreement data and to explore how they can be statistically accounted for. The ultimate aim was to propose recommendations for in-depth examination of agreement to imp...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2012
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| In: |
Journal of clinical epidemiology
Year: 2012, Volume: 65, Issue: 9, Pages: 1016-1025 |
| ISSN: | 1878-5921 |
| DOI: | 10.1016/j.jclinepi.2012.02.016 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.jclinepi.2012.02.016
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| Author Notes: | Björn Slaug, Oliver Schilling, Tina Helle, Susanne Iwarsson, Gunilla Carlsson and Åse Brandt |
| Summary: | OBJECTIVE: The overall objective was to unfold the phenomenon of interrater agreement: to identify potential sources of variation in agreement data and to explore how they can be statistically accounted for. The ultimate aim was to propose recommendations for in-depth examination of agreement to improve the reliability of assessment instruments. - STUDY DESIGN AND SETTING: Using a sample where 10 rater pairs had assessed the presence/absence of 188 environmental barriers by a systematic rating form, a raters × items data set was generated (N=1,880). In addition to common agreement indices, relative shares of agreement variation were calculated. Multilevel regression analysis was carried out, using rater and item characteristics as predictors of agreement variation. - RESULTS: Following a conceptual decomposition, the agreement variation was statistically disentangled into relative shares. The raters accounted for 6-11%, the items for 32-33%, and the residual for 57-60% of the variation. Multilevel regression analysis showed barrier prevalence and raters' familiarity with using standardized instruments to have the strongest impact on agreement. - CONCLUSION: Supported by a conceptual analysis, we propose an approach of in-depth examination of agreement variation, as a strategy for increasing the level of interrater agreement. By identifying and limiting the most important sources of disagreement, instrument reliability can be improved ultimately. |
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| Item Description: | Gesehen am 09.07.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1878-5921 |
| DOI: | 10.1016/j.jclinepi.2012.02.016 |