Satisfaction with Amplification in Daily Living (SADL)
The SADL scale has been designed to evaluate the satisfaction that people feel with their current hearing aids. It quantifies satisfaction using a global score and four subscales: Positive Effect, Service and Cost, Negative Features, and Personal Image.
The SADL can be used to examine a person's experience with a new or current hearing aid or to assess differences between previous and new hearing aids. The clinician would also be able to compare the individual's level of satisfaction with his/her current hearing aid to that of other hearing aid users.To administer and interpret the SADL you will need the SADL questionnaire and a method for scoring the questionnaire results.
You can download and print a copy of the SADL questionnaire and the instructions for manual scoring from this website. Also, you can purchase the SADL software. The SADL software provides a way for patients or hearing aid professionals to enter responses directly into an electronic record that can be saved for future use. Responses are scored automatically and can easily be compared to norms.
Obtaining the SADL Questionnaire and Scoring Package
Format: The files are in PDF format and can be viewed, printed, and saved to your computer using the free Adobe Acrobat Reader program. The documents available include the SADL form, a list showing which items are allocated to each subscale, instructions for manual scoring, and a blank template for plotting an individual's scores against norms for other hearing aid users.
Tips: Please note that the questionnaire was edited in 2000. Items 7 (feedback) and 11 (telephone use) were re-worded at that time and a larger font size was used.
Translations: New translations are added as they become available to us. Translation guidelines were provided. However, we cannot guarantee that translated items have not been modified from the original. In posting these translations on our website, our goal is to provide a "standard" translation for a language that clinicians and researchers in each country can use, examine, and perhaps improve. At present, there is evidence that multiple translations have been made in some languages. This is clearly not an optimal situation.
SADL scoring software can be purchased from the AUSP Software Group at the School of Communication Sciences and Disorders at the University of Memphis.
Format: Version 1.1 of the SADL for Windows scoring software is currently available.
Cost $30 (US)
References: Information about the development and research regarding the SADL may be found in:
Cox, RM and Alexander, GC. "Measuring satisfaction with amplification in daily life: The SADL Scale", Ear and Hearing, 20: 306-320 (1999).
Cox, RM and Alexander, GC. "Validation of the SADL Questionnaire", Ear and Hearing, 22:151-160, 2001.