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State-Trait Anxiety Inventory

Charles D. Spielberger, Ph.D.


The STAI is a self-report instrument that differentiates between the temporary condition of state anxiety and the longstanding quality of trait anxiety so that appropriate treatment can be developed. Results also help distinguish between symptoms of depression and symptoms of anxiety. With a fifth grade reading level, the STAI is suitable for individuals who are 15 years old and older.

How to Use the Assessment
The STAI consists of two scales containing 20 items each. One scale addresses state anxiety while the other scale addresses trait anxiety. The total score indicates which type of anxiety is prevalent. With the handscored format, scoring keys are used to quickly and easily score completed STAI forms. With the software format, Profile Reports can be instantly generated.
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Scales & Forms

  • State Anxiety
  • Trait Anxiety
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Charles D. Spielberger, Ph.D.

Age Range 15 years and older

Administration Time 10 minutes  

Administration Type Self-report

Qualification Level B

  • Handscored
  • Software 
    (Floppy disk
    drive required)