As part of a longitudinal study of bereavement phenomena in three grou
ps, bereaved spouses, bereaved adult children and bereaved parents, sc
ale development was carried out using a pool of bereavement phenomenol
ogy questions administered prospectively. The items were derived from
the literature, in particular studies dealing with the measurement of
grief/bereavement, as well as from clinical experience. Factor analysi
s of theoretically grouped items produced seven subscales, three of wh
ich tapped frequently experienced phenomena in the bereaved. These thr
ee subscales formed the basis of a single measure, labelled the Core B
ereavement Items (CBI), which demonstrated high reliability and sound
face and discriminant validity. Preliminary analysis suggested that th
e CBI will prove to be a reliable and valid instrument with respect to
the measure of core bereavement phenomena in commonly bereaved groups
in Western society.