Testing the specification of a fitted autoregressive-moving average model

D. S. Poskitt, A. R. Tremayne

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29 Citations (Scopus)


SUMMARY: This paper provides an extension of the application of score, or Lagrangian multiplier, tests to diagnostic checking of ARMA, autoregressive-moving average, models. The score test procedure for testing the null hypothesis of an ARMA(p,q) process against certain ARMA (p{squared plus}r, q{squared plus}s) alternatives is considered and shown to be of the form of a pure significance test.

Original languageEnglish
Pages (from-to)359-363
Number of pages5
Issue number2
Publication statusPublished - 1 Dec 1980
Externally publishedYes


  • Autoregressive-moving average model
  • Significance test
  • Singular information matrix.

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