The critical question, given that neither ability nor item
difficulty can be measured directly, is whether the procedures of inference are powerful enough to put the resulting
ratings of ability and
difficulty on
equal - unit scales.
Forshee notes that speakers typically
rate the
difficulty of the experience at about an eight on a ten - point scale and Homann suggests that in addition to practice, participants should focus on their transitions to get comfortable telling a story in
equal segments.