D. Silove et al., THE DEVELOPMENT OF THE SEPARATION ANXIETY SYMPTOM INVENTORY (SASI), Australian and New Zealand Journal of Psychiatry, 27(3), 1993, pp. 477-488
Separation anxiety continues to be implicated as an early risk factor
to adult emotional disorder but recent research findings are somewhat
contradictory. Inconsistencies in approaches to measuring memories of
early separation anxiety may have contributed to this lack of clarity.
We report the development of a brief self-report instrument, the Sepa
ration Anxiety Symptom Inventory (SASI), which was designed to overcom
e some of these deficiencies in measurement. The SASI was shown to hav
e a coherent factorial structure, high internal consistency (Cronbach'
s Alpha>.80) and test-retest reliability over an average of 24 months
(Intraclass Correlation Coefficient =.89), with serial scores not bein
g affected by changes in contemporaneous anxiety levels. Some index of
the validity of the measure was achieved by (a) comparing SASI scores
of index twins with descriptors of their ''insecure'' behaviours in e
arly life provided by corresponding co-twins; (b) comparing SASI score
s with retrospective DSM III-R diagnoses of early anxiety disorders ob
tained by structured interviews; and (c) examining SASI scores in subj
ects with histories of school refusal. The SASI provides a useful stan
dardised measure which will aid in the further testing of the separati
on anxiety hypothesis of adult emotional disorder.