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The effectiveness of vowel productio...

Ertmer, David Joseph.

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The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment./
Author:	Ertmer, David Joseph.
Description:	112 p.
Notes:	Source: Dissertation Abstracts International, Volume: 55-12, Section: B, page: 5309.
Contained By:	Dissertation Abstracts International55-12B.
Subject:	Health Sciences, Speech Pathology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9512964

The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment.
Ertmer, David Joseph.

The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment. - 112 p.

Source: Dissertation Abstracts International, Volume: 55-12, Section: B, page: 5309.

Thesis (Ph.D.)--Purdue University, 1994.

The effectiveness of vowel production training which incorporated direct instruction in combination with spectrographic models and feedback was assessed for two children who exhibited profound hearing impairment. A multiple-baseline design across behaviors, with replication across subjects was implemented to determine if vowel production accuracy improved following the introduction of treatment. Listener judgments of vowel correctness were obtained during the baseline, training, and follow-up phases of the study. Data were analyzed through visual inspection of changes in levels of accuracy, changes in trends of accuracy, and changes in variability of accuracy within and across phases. One subject showed significant improvement of all three trained vowel targets; the second subject for the first trained target only (Kolmogorov-Smirnov Two Sample Test). Performance trends during training sessions suggest that continued treatment would have resulted in further improvement for both subjects. Vowel duration, fundamental frequency, and the frequency locations of the first and second formants were measured before and after training. Acoustic analysis revealed highly individualized changes in the frequency locations of F1 and F2. Vowels which received the most training were maintained at higher levels than those which were introduced later in training, Some generalization of practiced vowel targets to untrained words was observed in both subjects. A bias towards judging productions as "correct" was observed for both subjects during self-evaluation tasks using spectrographic feedback.Subjects--Topical Terms:

1018105
Health Sciences, Speech Pathology.

The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment.
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035 $a (UnM)AAI9512964
035 $a AAI9512964
040 $a UnM $c UnM
100 1 $a Ertmer, David Joseph. $3 1908351
245 1 4 $a The effectiveness of vowel production training with real-time spectrographic displays for children with profound hearing impairment.
300 $a 112 p.
500 $a Source: Dissertation Abstracts International, Volume: 55-12, Section: B, page: 5309.
500 $a Major Professor: Rachel E. Stark.
502 $a Thesis (Ph.D.)--Purdue University, 1994.
520 $a The effectiveness of vowel production training which incorporated direct instruction in combination with spectrographic models and feedback was assessed for two children who exhibited profound hearing impairment. A multiple-baseline design across behaviors, with replication across subjects was implemented to determine if vowel production accuracy improved following the introduction of treatment. Listener judgments of vowel correctness were obtained during the baseline, training, and follow-up phases of the study. Data were analyzed through visual inspection of changes in levels of accuracy, changes in trends of accuracy, and changes in variability of accuracy within and across phases. One subject showed significant improvement of all three trained vowel targets; the second subject for the first trained target only (Kolmogorov-Smirnov Two Sample Test). Performance trends during training sessions suggest that continued treatment would have resulted in further improvement for both subjects. Vowel duration, fundamental frequency, and the frequency locations of the first and second formants were measured before and after training. Acoustic analysis revealed highly individualized changes in the frequency locations of F1 and F2. Vowels which received the most training were maintained at higher levels than those which were introduced later in training, Some generalization of practiced vowel targets to untrained words was observed in both subjects. A bias towards judging productions as "correct" was observed for both subjects during self-evaluation tasks using spectrographic feedback.
590 $a School code: 0183.
650 4 $a Health Sciences, Speech Pathology. $3 1018105
650 4 $a Physics, Acoustics. $3 1019086
690 $a 0460
690 $a 0986
710 2 0 $a Purdue University. $3 1017663
773 0 $t Dissertation Abstracts International $g 55-12B.
790 1 0 $a Stark, Rachel E., $e advisor
790 $a 0183
791 $a Ph.D.
792 $a 1994
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9512964