Skip to main content

Advertisement

Table 2 Range of values and descriptions of the question’s quality measurements

From: Evaluating the quality of the ontology-based auto-generated questions

Question quality measurements Range of values Description Literature
Difficulty index [0, 0.35) Very difficult (Doran 1980)
  [0.35, 0.60) Moderately difficult (Doran 1980)
  [0.60, 0.85) Moderately easy (Doran 1980)
  [0.85, 1] Very easy (Doran 1980)
Discrimination index [0, 0.3) Low (Doran 1980; Ebel 1979)
  [0.3, 0.6) Medium (Doran 1980; Ebel 1979)
  [0.6, 1] High (Doran 1980; Ebel 1979)
Reliability (point biserial [0.0, 0.3) Low (Dancey and Reidy 2004)
correlation coefficient) [0.3, 6.0) Medium (Dancey and Reidy 2004)
  [0.6, 1] High (Dancey and Reidy 2004)