This measure is designed to assess anxiety-related symptoms and experiences across two dimensions, including current situational anxiety and more stable, dispositional anxiety. The State-Trait Anxiety Inventory (STAI) includes 40 items and typically takes about 25 minutes to complete.
Items are presented as brief statements rated by the respondent, yielding separate scores for state and trait anxiety that can be used to support clinical screening, treatment planning, and outcome monitoring. The State-Trait Anxiety Inventory (STAI) was developed by Charles D. Spielberger and is commonly administered in clinical, medical, and research settings as part of a broader psychological evaluation.