and are assessed with the Dysfunctional Beliefs and Attitudes about Sleep scale (DBAS).
Three studies explored which DBAS items (1) maximally differentiated people with insomnia
from good sleepers,(2) declined with cognitive behavior therapy (CBT), and (3) were related
to other clinical improvement indexes. Design: Data from previous studies were analyzed to
evaluate the above 3 hypotheses. Participants: The total sample (N= 332) was comprised of …