Applying the phonological intervention taxonomy to expansion points intervention

Area of Science:

• Speech-language pathology
• Linguistics
• Clinical intervention research

Background:

• The Phonological Intervention Taxonomy systematically catalogs elements of phonological interventions.
• Key domains include intervention goals, teaching methods, context, and procedural aspects.
• Summary measures like concentration, flexibility, and distinctiveness quantify intervention characteristics.

Purpose of the Study:

• To apply the Phonological Intervention Taxonomy to the novel Expansion Points Intervention (EXP).
• To assess the taxonomy's ability to capture EXP's elements.
• To compare EXP with 15 previously cataloged phonological interventions.

Main Methods:

• The four domains of the taxonomy were systematically applied to EXP.
• Elements were classified as required, optional, or not relevant to EXP.
• Definitions provided with the taxonomy guided the classification process.

Main Results:

• EXP comprised 25 required and 15 optional elements, yielding a concentration of 40 and flexibility of 37.5%.
• These concentration and flexibility scores fall in the lower range compared to 15 other interventions.
• EXP's distinctiveness score of 15% is at the high end of the range.

Conclusions:

• The taxonomy was readily applied to EXP, demonstrating its utility.
• EXP shares underlying principles with other phonological interventions.
• Findings contribute to the theoretical understanding of therapeutic interventions for phonological disorders.