Test-retest and Experiences During Balance Assessment With the Mini-BESTest

The goal of this observational study is to test psychometric properties of a clinical balance assessment scale, the Mini-BESTest, as well as to explore experiences and beliefs about balance and being balance tested. The main research questions are: * What is the test-retest reliability of the Mini-BESTest balance assessment scale for individuals with long-term pain? * What is the individual's subjective beliefs and experiences about their own balance and being balance tested with the Mini-BESTest? Tow samples of participants will be included. One sample for a) the test-retest evaluation or b) an interview during and after performing the Mini-BESTest.