The Process Density Index as a Measure of Phonological Development: Data From Dutch

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Bibliographische Detailangaben
Beteiligte: van Borsel, John, D’haeseleer, Lien
In: Communication Disorders Quarterly, 40, 2019, 4, S. 220-227
veröffentlicht:
SAGE Publications
Medientyp: Artikel, E-Artikel

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Umfang: 220-227
ISSN: 1525-7401
1538-4837
DOI: 10.1177/1525740118790532
veröffentlicht in: Communication Disorders Quarterly
Sprache: Englisch
Schlagwörter:
Kollektion: SAGE Publications (CrossRef)
Inhaltsangabe

<jats:p> The Process Density Index (PDI), originally developed by Edwards, is a potentially useful metric for assessing phonological development that is based on the average number of phonological process applications per word in a speech sample. The purpose of the present study was to gather PDI reference data for Dutch-speaking children. Speech samples were collected and the PDI values were determined in 120 Dutch-speaking children aged between 2;6 and 5;6 years of both genders. Boys showed a higher PDI than girls, and there was a strong negative relationship between age and PDI. The presence of a history of otitis media, socioeconomic status, and sibling status, however, were of no influence. The results confirm trends seen in previous studies on phonological development of typically developing children using other metrics. This suggests that the PDI is a valid measure to assess phonological acquisition. </jats:p>