“Ipsative assessment refers to the ways in which teachers notice the progress
of an individual student rather than comparing his or her achievement to that
of others. The point of comparison is the individual’s previous performance.
See, for example, Te Kete Ipurangi, Assessment 2: Gathering Information, at
Ref: p6 Narrative Assessment: a guide for teachers. http://www.inclusive.org.nz/throughdifferenteyes/a_guide_for_teachers