An important parameter in item response theory is the slope of the curve, which is an indicator of how well the item discriminates.If there is a ________ slope then the item is probably a good discriminator ,whereas a ________ slope probably indicates the item does not discriminate very well.

Question

Quizplus · Accepted Answer

A steep slope indicates that the item discriminates well between high and low ability individuals, while a flat slope indicates that the item does not discriminate well and may be too easy or too hard for all individuals. Therefore, C is the correct choice as it correctly identifies the slopes that are indicative of good and poor discrimination in item response theory.

An Important Parameter in Item Response Theory Is the Slope