Saturday, April 30
01:00 pm – 01:15 pm

Session 36

Kelsey Raab, BA; Gretchen Bergstrand, BA; Anna Sosa, PhD, CCC-SLP
Level of Instruction: Introductory   –   Joshua Tree I

This study investigates the patterns of development of voiced and voiceless interdental fricatives in children ages 2;6 to 7;11 with typical speech and language. Word productions from the GFTA 2, EVT 2, CAAP 2, and SPAT D II were analyzed and patterns will be discussed. Preliminary results indicate that the production of /f/ for the voiceless interdental fricative is the most common substitution pattern among children ages 2;6-7;11. This process can therefore be considered “typical” with regard to development of the voiceless interdental fricative and, for the purpose of this research, has been named Interdental Fronting. Identification of this phonological process in typical speech and language development will aid clinicians in diagnostic decision-making and intervention planning.

Learner Outcomes:  At the completion of this presentation, participants will be able to identify the primary substitution patterns of interdental fricatives in children ages 2;6-7;11, identify age groups with the highest and lowest variability of voiceless interdental fricative production and differentiate accuracy of interdental and non-interdental fricatives in syllable onset versus syllable coda positions (across age groups).