It is a self-report measure that assesses the trait and state anxiety levels.
The inventory has two scales with 20 items each, half of them
written positively and half negatively. Participants rate on a 4-point
Likert scale how they feel at that moment (State scale), or how they
feel generally (Trait scale). Its internal consistency reliability was
0.90 for the State scale and 0.93 for the Trait scale. In this study, we
use only the State scale