Goodness-of-fit test with a robustness feature

• Jiming Jiang ^[1] ; Mahmoud Torabi ^[2]
  1. [1] University of California System

     University of California System

     Estados Unidos

     
  2. [2] University of Manitoba

     University of Manitoba

     Canadá

     
• Localización: Test: An Official Journal of the Spanish Society of Statistics and Operations Research, ISSN-e 1863-8260, ISSN 1133-0686, Vol. 31, Nº. 1, 2022, págs. 76-100
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • We develop a method originally proposed by R. A. Fisher into a general procedure, called tailoring, for deriving goodness-of-fit tests that are guaranteed to have a χ2 asymptotic null distribution. The method has a robustness feature that it works correctly in testing a certain aspect of the model while some other aspect of the model may be misspecified. We apply the method to small area estimation. A connection, and difference, to the existing specification test is discussed. We evaluate performance of the tests both theoretically and empirically, and compare the performance with several existing methods. Our empirical results suggest that the proposed test is more accurate in size, and has either higher or similar power compared to the existing tests. The proposed test is also computationally less demanding than the specification test and other comparing methods. A real-data application is discussed.