Ark, M. van, Sandrieser, P., Natke, U., Pietrowsky, R., & Kalveram, K. Th. (2004) Characteristic features of single-syllable word repetitions in preschool children who stutter and controls. In A. Packman, A. Meltzer & H. F. M. Peters (Eds.), Theory, Research and Therapy in Fluency Disorders. Proceedings of the 4th World Congress on Fluency Disorders in Montreal, Canada. Nijmegen: Nijmegen University Press, 285-289.

Abstract
The purpose of this study was to investigate differences in single-syllable word repetitions between preschool children who stutter and children who do not stutter. The participants of this study were 24 children aged 2.1 to 5.0 years who stutter and a control group matched in sex and age. Audio- and videotaped speech samples consisting of at least 1000 syllables were analysed regarding frequency, number of repetition units, and pause duration of single-syllable word repetitions. Results showed that frequency and number of iterations of single-syllable word repetitions differentiate the two groups, and that the group of children who stutter produced significantly shorter single-syllable word repetitions than the control group.