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1 results

  • Distractor Selection Ratios

  • Thomas E. Love
  • Journal:
    Psychometrika / Volume 62 / Issue 1 / March 1997
    Published online by Cambridge University Press:
    01 January 2025, pp. 51-62

  • A latent variable representation for multiple-choice item and option characteristic curves is presented. Under standard assumptions of conditional independence of item responses and monotonicity of item characteristic curves, a criterion for distractors is proposed based on distractor selection ratios. A connection is made between the proposed criterion and the theory of individual choice behavior, providing new insight. The main results allow for the testing of the criterion from observable data without first specifying a parametric form for the characteristic curves. A series of examples apply the method.