Use this free, evidence-based assessment of speech intelligibility on preschool through school-age clients on your caseload! All materials are included. The process of assessment and scoring takes about 10 minutes or less.Percent Consonants Correct in Imitation is helpful in the determination of a speech sound disorder, progress monitoring and measuring the efficacy of intervention. The CHIA involves direct imitation of sentences with mean length of utterance (MLU) of 4.39, which was deemed at o