Young E C, Thompson C K
J Commun Disord. 1987 Apr;20(2):137-49. doi: 10.1016/0021-9924(87)90005-0.
The effect of treatment on errors in consonant clusters and in ambisyllabic consonants were investigated in two adults with histories of developmental phonological problems. Using a multiple baseline across behaviors, ambisyllabic consonant errors were treated in bisyllabic words and consonant cluster errors were treated in two different cluster classes. Results indicated that treatment, consisting of a sound-referenced rebus approach, affected change in production of trained words as well as generalization to untrained words for targeted behaviors.