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A longitudinal study of language gro...

University of Colorado at Boulder., Speech, Language and Hearing Sciences.

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A longitudinal study of language growth in young children with hearing loss.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	A longitudinal study of language growth in young children with hearing loss./
Author:	Baca, Rosalinda.
Description:	147 p.
Notes:	Adviser: Christine Yoshinaga-Itano.
Contained By:	Dissertation Abstracts International70-04B.
Subject:	Health Sciences, Audiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3354558
ISBN:	9781109116120

A longitudinal study of language growth in young children with hearing loss.
Baca, Rosalinda.

A longitudinal study of language growth in young children with hearing loss. - 147 p.

Adviser: Christine Yoshinaga-Itano.

Thesis (Ph.D.)--University of Colorado at Boulder, 2009.

The guiding principle for this investigation was to develop a model for language growth in the presence of early childhood hearing loss. There were two longitudinal databases, which represented children from birth to three and from four to seven years of age. A multi-level linear model was proposed for expressive language in the infant/toddler cohort and expressive vocabulary as well as language comprehension in the preschool cohort.

ISBN: 9781109116120Subjects--Topical Terms:

1018138
Health Sciences, Audiology.

A longitudinal study of language growth in young children with hearing loss.
LDR:03866nam 2200385 a 45 001 857062
005 20100709
008 100709s2009 ||||||||||||||||| ||eng d
020 $a 9781109116120
035 $a (UMI)AAI3354558
035 $a AAI3354558
040 $a UMI $c UMI
100 1 $a Baca, Rosalinda. $3 1023983
245 1 2 $a A longitudinal study of language growth in young children with hearing loss.
300 $a 147 p.
500 $a Adviser: Christine Yoshinaga-Itano.
500 $a Source: Dissertation Abstracts International, Volume: 70-04, Section: B, page: 2260.
502 $a Thesis (Ph.D.)--University of Colorado at Boulder, 2009.
520 $a The guiding principle for this investigation was to develop a model for language growth in the presence of early childhood hearing loss. There were two longitudinal databases, which represented children from birth to three and from four to seven years of age. A multi-level linear model was proposed for expressive language in the infant/toddler cohort and expressive vocabulary as well as language comprehension in the preschool cohort.
520 $a The proposed model for expressive vocabulary in the infant/toddler cohort explained 66% of the variability in expressive language status at 36 months and 48% of the variability in the rate of expressive language growth. Children deviated from the age equivalent trajectory with more significant degrees of hearing loss, later identification ages, and lower non-verbal cognitive quotients.
520 $a The final model for expressive vocabulary in the preschool cohort explained 37% of the variability in expressive vocabulary at 84 months and 39% of the variability in expressive vocabulary growth. Deviations from the age equivalent trajectory occurred with an increase in hearing loss severity and age of identification and a decrease in non-verbal cognitive abilities and maternal level of education. According to the final model, children with higher degrees of hearing loss demonstrated a delay in expressive vocabulary at the start of the preschool period (48 months) when compared to the normative sample. The presence of this delay was eliminated by 84 months for children who were very early-identified (3 months) along with high levels of maternal education.
520 $a The final model for language comprehension in preschool children with hearing loss explained 28.3% of the variability in intercept and 30.1% of the variability in slope. Deviations from the age equivalent trajectory for language comprehension were estimated at 48 months, but this deviation was completely eliminated by 84 months of age for children identified by three months and with high levels of maternal education. This model also demonstrated smaller differences between degree of hearing loss groups for language comprehension than what was observed for expressive language and vocabulary. Factors associated most with a potential language comprehension delay included the combination of later identification and lower non-verbal cognitive quotients and lower maternal levels of education.
520 $a An evaluation of performance across cohorts revealed that 70.5% and 72.7% of children with estimated impaired expressive language quotients at 36 months of age also demonstrated estimated language comprehension and expressive vocabulary delays at 84 months.
590 $a School code: 0051.
650 4 $a Health Sciences, Audiology. $3 1018138
650 4 $a Health Sciences, Speech Pathology. $3 1018105
690 $a 0300
690 $a 0460
710 2 $a University of Colorado at Boulder. $b Speech, Language and Hearing Sciences. $3 1023982
773 0 $t Dissertation Abstracts International $g 70-04B.
790 $a 0051
790 1 0 $a Arehart, Kathryn $e committee member
790 1 0 $a Johnson, Cheryl $e committee member
790 1 0 $a Kepler, Laura $e committee member
790 1 0 $a Sedey, Allison $e committee member
790 1 0 $a Wiley, Ed $e committee member
790 1 0 $a Yoshinaga-Itano, Christine, $e advisor
791 $a Ph.D.
792 $a 2009
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3354558