Problem clarification and analysis are basic problem solving steps tha
t address the fundamental question of what to change. The analysis of
keystone child behaviors and other keystone events is a conceptual and
research-based target variable selection strategy within the problem
solving process. Keystone behaviors have been defined as (a) pivotal b
ehaviors associated with response classes of maladaptive behaviors tha
t can positively influence other child behaviors; (b) behaviors that r
esult in other beneficial collateral child, peer, and adult outcomes;
and (c) foundation skills necessary for adaptation to present and futu
re environments. Stated differently, keystone variables represent rela
tively narrow targets for change having the most widespread benefits t
o clients. Within the context of ecological consultation and systems a
nalysis, the term keystone variable, rather than behavior, is suggeste
d because of the broad range of potential targets for efforts at perma
nent change and to acknowledge that such targets often go beyond prese
nting child problems. The hypothesized benefits of selecting keystone
targets for change include more effective and efficient interventions.