What is it?
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.
How do I get it?
You can download and print a copy of the SADL questionnaire and the instructions for manual scoring from this website. SADL scoring software for windows is also available for free download on this page. 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
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 each subscale, instructions for manual scoring, and a blank template for plotting an individual’s scores against norms for other hearing aid users.
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.
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.
Obtaining the SADL Automatic Scoring Software
The SADL software Windows version is available from the AUSP Software Group as a zip file for free download on this page (at right).
References
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.
SADL Questionnaire and Scoring Package
Translating the SADL Questionnaire
Arabic (in progress)
Bengali (in progress)
Gujarati (in progress)
Hindi (in progress)
Malayalam (in progress)
Sinhala (in progress)
Tagalong (in progress)
Turkish (in progress)
SADL Automatic Scoring Documents
Downloadable Scoring Software