Comparison of Sentence Identification and Conventional Speech Discrimination Scores

1970 ◽  
Vol 13 (4) ◽  
pp. 755-767 ◽  
Author(s):  
Charles Speaks ◽  
James Jerger ◽  
Jane Trammell
Keyword(s):  
Hearing Impaired ◽  
Test Material ◽  
Speech Discrimination ◽  
Direct Relation ◽  
Word Lists ◽  
Test Materials

Performance scores for PB word lists and for synthetic sentences were compared on sixty hearing-impaired patients. Scores on the two types of test materials showed a direct relation to audiometric contour. Patients with relatively flat losses performed similarly with words and with sentences. As the slope of the audiometric pattern increased, however, the discrepancy between the scores for words and sentences also increased. Results were consistent with previous findings on the frequency regions important for understanding the two types of test material.

Factors Affecting Speech Discrimination Test Difficulty

1969 ◽  
Vol 12 (2) ◽  
pp. 281-287 ◽  
Author(s):  
E. James Kreul ◽  
Donald W. Bell ◽  
James C. Nixon
Keyword(s):  
Test Development ◽  
Test Material ◽  
Speech Discrimination ◽  
Discrimination Test ◽  
Factors Affecting ◽  
Speech Discrimination Test ◽  
Word Lists

Changes in item and overall test difficulty of speech discrimination and intelligibility tests were examined as a function of: carrier phrase, talker, reutterances by a talker, and level of accompanying noise. The results indicate that all of these variables must be considered in test development. Only the actual recordings of the spoken lists of words can be considered to be the test material; the word lists, in and of themselves, should not be thought of as test material.

scholarly journals Performance of Severely Hearing-Impaired Children on a Closed-Response, Auditory Speech Discrimination Test

1974 ◽  
Vol 17 (3) ◽  
pp. 531-540 ◽  
Author(s):  
Kenneth O. Jones ◽  
Gerald A. Studebaker
Keyword(s):  
Hearing Impaired ◽  
Speech Discrimination ◽  
Discrimination Test ◽  
Auditory Speech ◽  
Speech Discrimination Test ◽  
Hearing Function ◽  
Response Set ◽  
Comparison Of The Results ◽  
Impaired Children ◽  
Hearing Impaired Children

The performance of 23 hearing-impaired children on a closed-response, auditory speech discrimination test and on an open-response, auditory speech discrimination test was compared to their performance on auditory tests of sensitivity, teacher-evaluated categories, and other related subject data. A comparison of the results of closed-response, auditory speech discrimination test and the open-response, auditory speech discrimination test indicates that the closed-response set test paradigm appears more productive for use with severely hearing-impaired subjects whose level of performance is low (but not 0%) on the open-response, auditory speech discrimination test. The closed-response test scores for this group are highly positively correlated to data dependent upon hearing function, whereas the open-response scores are not. Analyses of the closed-response set test results indicate that a closed-response set test paradigm can successfully demonstrate auditory speech discrimination error patterns on a subject group basis.

Reliability of Threshold, Slope, and PB Max for Monosyllabic Words

1985 ◽  
Vol 50 (2) ◽  
pp. 166-178 ◽  
Author(s):  
Randall C. Beattie ◽  
Michael J.M. Raffin
Keyword(s):  
Hearing Loss ◽  
Hearing Impaired ◽  
Sensation Level ◽  
Step Size ◽  
Binomial Theorem ◽  
Large Variability ◽  
Impaired Group ◽  
Word Lists ◽  
Monosyllabic Words ◽  
Single List

The Auditec recordings of the CID W-22 monosyllables were used to generate test and retest intelligibility functions on normally hearing listeners and subjects with mild-to-moderate sensorineural hearing loss. The normally hearing subjects were tested with 50-word lists at SPLs ranging from 15 to 50 dB. Lists of 25 words were used with the hearing-impaired group. The functions were analyzed to assess the reliability of threshold (50% point), slope (20%–80% points), and maximum intelligibility (PB max). The 50% point was obtained at 28 dB SPL for the normally hearing listeners and at a sensation level (SL) of 12 dB re spondaic thresholds for the hearing-impaired group. Very stable monosyllabic thresholds were found because 95% of the test-retest values were within 6 dB for both subject groups. Slopes of 4.9% per dB and 2.7% per dB were obtained for the normally hearing and hearing-impaired groups, respectively. Fair reliability was observed; 95% of the test-retest values encompassed a range of ± 1.9% per dB for the normally hearing subjects and ± 1.1% per dB for the hearing-impaired group. Although group slopes provide useful information for selecting the range and step size for generating psychometric functions, the value of routinely obtaining slope on an individual basis has not been demonstrated. Even though the same word lists were used for both test and retest measurements, reliability closely agreed with predicted results based on the binomial theorem. In contrast to the large variability for a single list of 25 words, very stable PB max scores were found when two or three scores were averaged on the plateau of the function.

Predicting Audiovisual Consonant Recognition Performance of Hearing-Impaired Adults

1974 ◽  
Vol 17 (2) ◽  
pp. 270-278 ◽  
Author(s):  
Brian E. Walden ◽  
Robert A. Prosek ◽  
Don W. Worthington
Keyword(s):  
Predictive Value ◽  
Visual Cues ◽  
Visual Recognition ◽  
Recognition Performance ◽  
Hearing Impaired ◽  
Speech Discrimination ◽  
Information Analysis ◽  
Wide Range ◽  
Consonant Recognition ◽  
Recognition Ability

The redundancy between the auditory and visual recognition of consonants was studied in 100 hearing-impaired subjects who demonstrated a wide range of speech-discrimination abilities. Twenty English consonants, recorded in CV combination with the vowel /a/, were presented to the subjects for auditory, visual, and audiovisual identification. There was relatively little variation among subjects in the visual recognition of consonants. A measure of the expected degree of redundancy between an observer’s auditory and visual confusions among consonants was used in an effort to predict audiovisual consonant recognition ability. This redundancy measure was based on an information analysis of an observer’s auditory confusions among consonants and expressed the degree to which his auditory confusions fell within categories of visually homophenous consonants. The measure was found to have moderate predictive value in estimating an observer’s audiovisual consonant recognition score. These results suggest that the degree of redundancy between an observer’s auditory and visual confusions of speech elements is a determinant in the benefit that visual cues offer to that observer.

Discrimination Test Word Difficulty

1965 ◽  
Vol 8 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Richard A. Campbell
Keyword(s):  
Test Word ◽  
General Purpose ◽  
Clinical Population ◽  
Average Level ◽  
Speech Discrimination ◽  
Discrimination Test ◽  
Speech Discrimination Test ◽  
Word Lists ◽  
Level Of Difficulty ◽  
Word Difficulty

Criteria for the construction and evaluation of clinical speech discrimination test word lists are reviewed. Particular emphasis is placed on the need for such lists to be appropriate and homogeneous in both range and average level of word difficulty. Individual word difficulty data obtained from a clinical population with discrimination losses are presented for the recorded CID W-22 Auditory Test Series. These data permitted the rearrangement of the 200 W-22 words into eight 25-word lists which promise to be more homogeneous in average level of difficulty. However, the range of word difficulty, of both the original or reconstructed tests, falls short of the optimal distribution for a general-purpose speech discrimination test.

A Picture Identification Test for Hearing-Impaired Children

1970 ◽  
Vol 13 (1) ◽  
pp. 44-53 ◽  
Author(s):  
Mark Ross ◽  
Jay Lerman
Keyword(s):  
Correlation Coefficients ◽  
Hearing Impaired ◽  
Second Phase ◽  
Speech Discrimination ◽  
Clinical Tool ◽  
Discrimination Ability ◽  
Identification Test ◽  
Impaired Children ◽  
Picture Identification ◽  
Hearing Impaired Children

A picture identification test for measuring speech discrimination ability in hearing-impaired children was developed in two phases. In the first phase the word stimuli were evaluated to determine whether they were within the recognition vocabulary of the children and whether the pictorial representations of the words were adequate. Before the second phase, the test was revised to consist of 25 plates with 6 pictures on each plate, with only 4 of the pictures on each plate used as test stimuli. These 4 lists were given to 61 hearing-impaired children on two separate occasions. The results indicate reliability coefficients in excess of 0.87 for all four lists, with mean differences of less than 3% and correlation coefficients between lists greater than 0.84. The test appears to be a potentially valuable clinical tool in pediatric audiology. We call it the Word Intelligibility by Picture Identification test (WIPI).

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