Please give a reference. I am using the manual STAI. I missed it. But some articles are using a cut-off margin of 30 though STAI is a 20-80 scoring tool. It is very questionable to fix 30 as the cut-off margin.
The State-Trait Anxiety Inventory (STAI) is a psychological inventory consisting of 40 self-report items on a 4-point Likert scale. The STAI measures two types of anxiety – state anxiety and trait anxiety. Higher scores are positively correlated with higher levels of anxiety. Its most current revision is Form Y and it is offered in more than 40 languages.
The STAI was developed by psychologists Charles Spielberger, R.L. Gorsuch, and R.E. Lushene. Their goal in creating the inventory was to create a set of questions that could be applied towards differentiating between the temporary condition of "state anxiety" and the more general and long-standing quality of "trait anxiety." This was a new development because all other questionnaires focused on one type of anxiety at the time.
Spielberger also created other self-report state-trait scales purported to measure various other emotions and dispositions. These include the State-Trait Anger Scale (STAS) and the State-Trait Anger Expression Inventory (STAXI). Alternate forms of the STAI have been developed, including a short-form version (STAI-6) measuring STATE not TRAIT anxiety
well as a child form, the State-Trait Anxiety Inventory for Children (STAIC).
Take the mean M of your sample. Compute the SD. Use visual binning in SPSS to dived your results in 3 parts: low, medium and high or
decide that M+ 1 SD is high anxiety and M - 1 DS is low anxiety. Tell in the method sextion what you did and how you did it.
If you have both state and trait anxiety they should be computed separately.
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