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Notes on Ingram's whole-word measures for phonological development

Published online by Cambridge University Press:  14 June 2005

HELENA TAELMAN ,
GERT DURIEUX  and
STEVEN GILLIS
HELENA TAELMAN
Affiliation:
University of Antwerp
GERT DURIEUX
Affiliation:
University of Antwerp
STEVEN GILLIS
Affiliation:
University of Antwerp
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Abstract

In this note we discuss pMLU, a whole-word measure for phonological development that was proposed by Ingram (2002). Ingram's rules for calculating pMLU are analysed and we point at the crucial role of the level of transcription for making pMLU measurements comparable over different corpora. The main aim of the paper is an assessment of the reliability and the validity of pMLU. The assessment is accomplished using a computational tool for measuring pMLU on two large Dutch CHILDES corpora. We propose minimal sample sizes for reliable measurements relative to the stage of phonological development.

Type
Note
Information
Journal of Child Language , Volume 32 , Issue 2 , May 2005 , pp. 391 - 405
Copyright
© 2005 Cambridge University Press

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Footnotes

The research reported in this paper was supported by a GOA grant ‘Computational Psycholinguistics’. The first author was supported by the Fund for Scientific Research – Flanders (Belgium). We thank the anonymous reviewers for their helpful comments.