Some considerations to carry out a composite indicator for ordinal data

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Abstract

Composite indicators (CIs) are important and useful tools in many elds to assess, compare and rank performances, development stage, quality and many other dierent targets. CIs are an overall measure of a multidimen- sional, not directly observable, concept and are obtained by means of a set of manifest variables (elementary indicators) that contribute to dene the over- all measure. In this paper, some matters regarding methods to build CIs are reviewed, assuming elementary indicators are ordinal and quantication is necessary to convert observed data into a numerical form. Scoring methods, aggregating functions and weighting systems are considered. In particular, a scoring method based on the observed distribution or the use of dissim- ilarity indices for quantication together with the Kendall- association or a heterogeneity measure for weighting are suggested. Some of the reviewed procedures are compared using students' satisfaction data.
Lingua originaleEnglish
pagine (da-a)384-397
Numero di pagine14
RivistaElectronic Journal of Applied Statistical Analysis
Volume2015
DOI
Stato di pubblicazionePubblicato - 2015

Keywords

  • ordered categorical variables, dissimilarity indices, combining functions, composite indicator, performance index

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