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Dimensionality of Speech-Language Pathologists' Child-Directed Talk During School-Based Therapy With Primary-Grade
Jing Sun1, Laura M Justice1, Ye Shen1,2
1Crane Center for Early Childhood Research and Policy, College of Education and Human Ecology, The Ohio State University, Columbus.
American Journal of Speech-Language Pathology
|December 20, 2023
Summary
Speech-language pathologists' (SLPs) talk during therapy sessions shows variability but has a stable three-dimensional structure over time. These linguistic features, including quantity and complexity, consistently measure constructs influencing child language gains.
Area of Science:
- Speech-language pathology
- Linguistics
- Educational psychology
Background:
- Speech-language pathologists (SLPs) play a crucial role in child language development.
- Understanding the linguistic characteristics of SLP talk is essential for optimizing therapy effectiveness.
- Variability in SLP talk may influence child language outcomes, necessitating robust measurement.
Purpose of the Study:
- To analyze the measurement structure of linguistic features in SLP talk during therapy sessions.
- To assess the longitudinal stability of a three-dimensional model of SLP talk (quantity, grammatical complexity, lexical complexity).
- To examine the consistency of these linguistic measures across an academic year.
Main Methods:
- Utilized a corpus of 579 videotaped therapy sessions from 75 primary-grade students' SLPs.
- Employed automatic transcription and coding for linguistic features of SLP talk.
- Conducted confirmatory factor analyses and longitudinal measurement invariance analyses.
Main Results:
- Demonstrated significant variability in SLP talk characteristics among different SLPs.
- Confirmed a robust three-factor structure for SLP talk, encompassing quantity, grammatical complexity, and lexical complexity.
- Established measurement invariance, indicating stable construct representation over the academic year.
Conclusions:
- Provided strong evidence for between-SLP variability in child-directed talk.
- Established a stable, three-dimensional structure for linguistic features in SLP talk.
- Highlighted that these stable linguistic features may be malleable aspects of therapy influencing child language development.
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