Scale Overview
The Acoustic Comfort Assessment Scale (ACAS-12) was developed by Karmele Herranz-Pascual, Ioseba Iraurgi, Itziar Aspuru, Igone Garcia-Pérez, José Luis Eguiguren, Álvaro Santander (2023). It is designed to measure Acoustic Comfort. The scale is intended for use with General population in urban public spaces.
Scale Structure
This instrument consists of 12 items.
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Left adjective describes the environment very well, 2 = Left adjective describes it well, but not as well as 1, 3 = Not sure which of the two adjectives is more appropriate, 4 = Right adjective describes it well, but not as well as 5, 5 = Right adjective describes the environment very well.
Scoring
Item scores are averaged to produce a mean score.
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Cronbach's alpha of 0.91.
Administration
The scale is self-administered and typically takes approximately 3 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.