This treatment development, process research study focuses on resolving ins
ession, parent-adolescent conflicts characterized by negative exchanges, em
otional disengagement, and poor problem solving. These processes have been
empirically linked to poor developmental outcomes, and clinically linked to
poor therapeutic progress. Specifically: we examined how a shift of therap
eutic focus from behavior management to interpersonal relationship failures
could resolve this impasse and resuscitate therapeutic momentum. A task an
alysis approach was used to verify the presence of the impasse, to illumina
te its core features, and to define the therapist and client behaviors asso
ciated with resolving it. In Part I of this two-part series, we presented t
he final performance map that represented that family's cognitive, emotiona
l and behavioral interactions necessary to resolve the impasse. This articl
e, Part II, focuses on the theoretical foundation of the intervention strat
egies, the phenomenology of the impasse, and the therapist's skills needed
to facilitate it.