Psychometric Properties of the Turkish Version of the Satisfaction with Amplification in Daily Living Questionnaire in Hearing Aid Users.

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Psychometric Properties of the Turkish Version of the Satisfaction with Amplification in Daily Living Questionnaire in Hearing Aid Users.

J Am Acad Audiol. 2018 Nov/Dec;29(10):898-908

Authors: Genç M, Çildir B, Kaya M

Abstract
BACKGROUND: Assessing hearing aid satisfaction is important for hearing aid adaptation in individuals who have hearing loss. Each user should be compared to oneself during the adaptation of the hearing aid and the determination of the satisfaction level, because, each user has their own demands and expectations. Therefore, the survey evaluations which reveal the personal preferences and expectations gain importance in the determination of the benefit and satisfaction rate for hearing aid users.
PURPOSE: The purpose of this study was to evaluate the reliability of the Turkish version of the Satisfaction with Amplification in Daily Living (TSADL) among hearing aid users.
RESEARCH DESIGN: The original Satisfaction with Amplification in Daily Living (SADL) questionnaire was translated from English to the TSADL. Linguistic adaptation attempted to ensure equivalency, both grammatically and idiomatically, and was assessed by investigators related to the field.
STUDY SAMPLE: One hundred and sixty hearing aid users with sensorineural hearing loss, aged 18 to 90 yr (54.51 ± 18.21), who had been using a hearing aid regularly for more than 6 mo participated in the study; seventy three (45.10%) were male and 87 (54.30%) were female.
DATA COLLECTION: Participants completed the TSADL twice, 3 mo apart (long enough to forget their replies in the first application but short enough to prevent any changes to the measured properties).
RESULTS: When factor analysis of the questionnaire was performed, subdimension factor loadings were found to range from 0.744 to 0.854 for "Positive Effect," 0.62 to 0.985 for "Personal Image," and 0.903 to 0.913 for "Adverse Features"; the factor loading of "Service and Cost" was 0.983. Because all factor loadings were above 0.30, no items were excluded from the Turkish version of the questionnaire. Although the TSADL retained the original four factors, because of differences in Turkish social structures and perspectives, questions #12 and #15 revealed an association between the "Service and Cost" and "Positive Effects" subdimensions.
CONCLUSIONS: The SADL-TR scale can be reliably used in clinical studies to rapidly assess patient satisfaction, compare satisfaction levels, determine normative satisfaction level, compare various amplifications, and gather administrative outcome data.

PMID: 30479262 [PubMed - in process]

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