The cleft audit protocol for speech-augmented: A validated and reliable measure for auditing cleft speech

Abstract

Objectives: To develop an assessment tool for use in intercenter audit studies of cleft speech and to test its acceptability, validity, and reliability. The tool is to be used systematically to record and report speech outcomes, providing an indication of treatment needs and continuing burden of care.

Setting: Regional Cleft Center, U.K.

Methods: The Cleft Audit Protocol for Speech-Augmented (CAPS-A) was developed by three cleft speech experts who identified the key features required from existing assessment measures. Criterion validity was assessed by comparing the Cleft Audit Protocol for Speech-Augmented outcomes reported for 20 cases with clinical assessment results and other investigations. Intra- and interrater reliability were tested following the training of specialist speech and language therapists who used the Cleft Audit Protocol for Speech-Augmented on two occasions to assess 10 cases. The raters evaluated acceptability and ease of using a questionnaire.

Results: The mean percentage agreement for criterion validity in each section was 87% (range 70% to 100%). Both intra- and interexaminer reliability were rated as good/very good (Kappa 0.61 to 1.00) for seven sections and moderate (Kappa 0.41 to 0.60) for three sections. Raters reported that the Cleft Audit Protocol for Speech-Augmented was acceptable and easy to use with appropriate training.

Conclusion: An acceptable, valid, and reliable cleft speech audit tool has been developed based on a small sample. The Cleft Audit Protocol for Speech-Augmented is recommended for use in intercenter audit studies in the U.K. and Ireland and could be used in other English-speaking countries. In addition, it has wider applicability for use in reporting speech outcomes of surgical procedures.