underidentified

English

Etymology

From under- +‎ identified.

Pronunciation

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Adjective

underidentified (not comparable)

1. Insufficiently identified
   • 2015 November 7, “A New Extension of the Binomial Error Model for Responses to Items of Varying Difficulty in Educational Testing and Attitude Surveys”, in PLOS ONE‎^[1], →DOI:

     We also note that the special case in which the b parameter is set a priori to 1 is underidentified and requires an arbitrary constraint on one item parameter or, equivalently, on the a distribution parameter.