This research sought to determine whether consultees and consultants had equal control of consultative interactions as reflected in the frequency of topic determination for each participant. Results indicated that consultants had a greater degree of control than consultees with consultants successfully executing a topic change 78% of the time whereas consultees were successful only 58% of the time. Data further indicated that these differences in topic control also made a difference with respect to three outcome measures: (a) consultee willingness to collect baseline data, (b) consultee willingness to carry out treatment plans, and (c) consultee ratings of consultant effectiveness. In general, topic determination on the part of the consultant was positively associated with outcome and topic determination for the consultee was negatively associated with outcome. Results are discussed in terms of their implications for consultation as a collaborative venture.