Interrater and test-retest reliabilities were determined on a subset of 10 infants who each took part in three trials rated by 2 therapists. A total of 127 children have been studied with the instrument, including normal healthy infants and samples with nonorganic failure to thrive, and cerebral palsy.
The schedule distinguishes these from skills at more aggregated levels of functioning such as jaw, lip, and tongue control. Oral-motor skills are evaluated in terms of discrete oral-motor movements. A series of foodstuffs of varying textures, including liquids, is presented to the child in a standardized manner. The procedure takes approximately 20 min to administer, and is intended to be rated largely from a videorecording of a structured feeding session.
Its aim is to identify areas of dysfunction that could contribute to feeding difficulties. The Schedule for Oral Motor Assessment (SOMA) was developed to record oral-motor skills objectively in infants between ages 8 and 24 months postnatal.
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