GSA KAER Model (IMAGE) The Gerontological Society of America Caption The GSA KAER Toolkit for Primary Care Teams is is based on a model that consists of four steps: Kickstart, Assess, Evaluate, and Refer. Credit The Gerontological Society of America Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.