The primary purpose of the study was to examine the utility of functio
nal assessment in comparison to a technological approach to treatment.
Specifically, we investigated the treatment utility of functional ass
essment within a behavioral consultation framework to determine the ef
fect of different uses of assessment data on child treatment outcome.
Participants consisted of 19 preschool children enrolled in a Head Sta
rt program who demonstrated social and/or behavioral problems in the c
lassroom. Their classroom teachers participated in the study as consul
tees who received help from trained consultants in identifying target
behaviors and implementing classroom-based interventions. Participants
were randomly assigned to two conditions: a consultation approach uti
lizing functional assessment methods to develop individualized behavio
ral interventions, or a consultation approach that used nonfunctional
analytic assessment methods and a standard treatment package of self-h
elp materials. The outcomes of the individual consultation cases were
analyzed with case study methodology to determine behavior change and,
in general, consultation resulted in positive treatment outcomes that
were moderate in magnitude. There were no significant differences fou
nd between the two groups on the outcomes variables of treatment effec
ts, consumer satisfaction, or costs; however, consultants expressed a
preference for using functional assessment methodology due to perceive
d improved consultation relationships. Consultees from both groups pro
vided satisfactory treatment acceptability ratings and good overall ra
tings of satisfaction with consultation services. Implications regardi
ng the generalizability of this study's results to other populations a
re discussed, as well as directions for further research in the areas
of functional analysis and behavioral consultation.