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Performance evaluation based on the robust Mahalanobis distance and multilevel modeling using two new strategies. (English) Zbl 1153.62388

Summary: We propose a general framework for performance evaluation of organizations and individuals over time using routinely collected performance variables or indicators. Such variables or indicators are often correlated over time, with missing observations, and often come from heavy-tailed distributions shaped by outliers. Two new double robust and model-free strategies are used for evaluation (ranking) of sampling units. Strategy 1 can handle missing data using residual maximum likelihood (RML) at stage two, while strategy two handles missing data at stage one. Strategy 2 has the advantage that overcomes the problem of multicollinearity. Strategy one requires independent indicators for the construction of the distances, where strategy two does not. Two different domain examples are used to illustrate the application of the two strategies. Example one considers performance monitoring of gynecologists and example two considers the performance of industrial firms.

MSC:

62P99 Applications of statistics
62H99 Multivariate analysis
90B99 Operations research and management science
65C60 Computational problems in statistics (MSC2010)
65F35 Numerical computation of matrix norms, conditioning, scaling

Software:

ROBETH
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References:

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