Objective. The purpose of this study was to investigate the relationship be
tween cognitive disability and performance of daily living skills and stabi
lity of cognitive level after discharge in a sample of adult psychiatric in
patients (N = 40).
Method. The Alien Cognitive Level Test-90 (ACL-90) was administered at time
of discharge (Time I) and at 21 days to 28 days after discharge (Time II).
The self-report version of the revised Routine Task Inventory (RTI-2) was
also administered at Time II.
Results. No significant correlation was found between the ACL-90 at Time I
and the RTI-2 scores; however, significant correlations were found between
the ACL-90 scores at both times and between the ACL-90 score at Time II and
the RTI-2 scorer.
Conclusion. The findings suggest that cognitive level remains relatively st
able over a I-month period in the postacute stage of a psychiatric illness.
Cognitive level and performance of daily living skills are related but the
relationship is sensitive to time. Implications for occupational therapy a
ssessment include recognizing the temporal constraints of functional assess
ments and refining instruments to be more sensitive to performance of famil
iar tasks, talking into consideration client adaptation to exigencies.