Critical Review: Is parent based intervention equally as effective for improving language outcomes as clinic based therapy for preschool children with language impairment?

This critical review examines the existing evidence for implementing parent based intervention (PBI) as an alternative to traditional therapy for preschool children. Studies included English speaking children with expressive and/or receptive language impairment. Five randomized clinical trials and two nonrandomized clinical trials are reviewed. Overall, research suggests that PBI can be an effective alternative to clinic based therapy. However, there are certain populations that may not benefit from PBI. Clinical implications for decisions regarding implementing PBI are discussed