2.2.6. Psychological Flexibility

The PsyFlex questionnaire is a 6-item self-report scale measuring the process of Psychological Flexibility. It assesses psychological flexibility in a state form with high temporal specificity, asking about experiences in the past week. Each item is rated on a 5-point scale from 1 (very often) to 5 (very seldom), producing a possible range of scores from 6 to 30, where higher scores indicate higher psychological flexibility. The PsyFlex has a one-factor structure with excellent reliability (Raykov's r = 0.91), as well as evidence of convergent, divergent, and incremental validity [51,59]. Cronbach's alpha for the current study was observed at 0.87 for the total cohort (*n* = 231); 0.85 for the No ACE cohort (*n* = 75); and 0.88 for the cohort with self-reported ACE (*n* = 156).
