Growth of Finiteness in the Third Year of Life: Replication and Predictive Validity Purpose The authors of this study investigated the validity of tense and agreement productivity (TAP) scoring in diverse sentence frames obtained during conversational language sampling as an alternative measure of finiteness for use with young children. Method Longitudinal language samples were used to model TAP growth from 21 to ... Research Article
Research Article  |   June 01, 2014
Growth of Finiteness in the Third Year of Life: Replication and Predictive Validity
 
Author Affiliations & Notes
  • Pamela A. Hadley
    University of Illinois at Urbana–Champaign
  • Matthew Rispoli
    University of Illinois at Urbana–Champaign
  • Janet K. Holt
    Southern Illinois University, Edwardsville
  • Colleen Fitzgerald
    University of Illinois at Urbana–Champaign
  • Alison Bahnsen
    University of Illinois at Urbana–Champaign
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Pamela A. Hadley: phadley@illinois.edu
  • Alison Bahnsen is now at Des Moines Public Schools, IA.
    Alison Bahnsen is now at Des Moines Public Schools, IA.×
  • Editor: Rhea Paul
    Editor: Rhea Paul×
  • Associate Editor: Stephanie Stokes
    Associate Editor: Stephanie Stokes×
Article Information
Research Issues, Methods & Evidence-Based Practice / Language / Research Articles
Research Article   |   June 01, 2014
Growth of Finiteness in the Third Year of Life: Replication and Predictive Validity
Journal of Speech, Language, and Hearing Research, June 2014, Vol. 57, 887-900. doi:10.1044/2013_JSLHR-L-13-0008
History: Received January 8, 2013 , Revised June 4, 2013 , Accepted August 19, 2013
 
Journal of Speech, Language, and Hearing Research, June 2014, Vol. 57, 887-900. doi:10.1044/2013_JSLHR-L-13-0008
History: Received January 8, 2013; Revised June 4, 2013; Accepted August 19, 2013
Web of Science® Times Cited: 8

Purpose The authors of this study investigated the validity of tense and agreement productivity (TAP) scoring in diverse sentence frames obtained during conversational language sampling as an alternative measure of finiteness for use with young children.

Method Longitudinal language samples were used to model TAP growth from 21 to 30 months of age for 37 typically developing toddlers. Empirical Bayes (EB) linear and quadratic growth coefficients and child sex were then used to predict elicited grammar composite scores on the Test of Early Grammatical Impairment (TEGI; Rice & Wexler, 2001) at 36 months.

Results A random-effects quadratic model with no intercept best characterized TAP growth, replicating the findings of Rispoli, Hadley, and Holt (2009) . The combined regression model was significant, with the 3 variables accounting for 55.5% of the variance in the TEGI composite scores.

Conclusion These findings establish TAP growth as a valid metric of finiteness in the 3rd year of life. Developmental and theoretical implications are discussed.

Acknowledgments
This study was supported by National Study Foundation Grant BCS-082251, awarded to Matthew Rispoli and Pamela A. Hadley. Portions of this article were presented at the 2012 Symposium for Research in Child Language Disorders, Madison, WI, and at the 2012 American Speech-Language-Hearing Association's Annual Convention, Atlanta, GA. We are grateful for the commitment of the participating parents and children to this project and to the numerous students who assisted with data collection and transcription.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access