In most multiple-choice tests using confidence based marking (CBM), a discrete certainty scale is applied, often with three or four probability intervals of equal length. In this paper we derive a continuous certainty scale for CBM which we think circumvents the alleged complexity that would be...

In most multiple-choice tests using confidence based marking (CBM), a discrete certainty scale is applied, often with three or four probability intervals of equal length. In this paper we derive a continuous certainty scale for CBM which we think circumvents the alleged complexity that would be...