We used an adapted alternating treatment single-case design to compare the effect of affirmative feedback to affirmative plus suggestive feedback on educators' use of naturalistic instruction. Three early childhood special educators and a focus child within their preschool classrooms participated. Visual analysis of our data suggest that affirmative plus suggestive feedback produced stronger effects compared to affirmative feedback. Based on these data, faculty and professional development providers should plan to provide their educators with both affirmative and suggestive feedback to strengthen educators' practice. Implications for practice and research are included.