Abstract
The internal consistency of the State-Trait Anxiety Inventory, Form Y was examined using data collected from Japanese participants by five diverse surveys, in which one included American university students. Cronbach coefficient α was calculated separately for state and trait items as well as for anxiety-present and -absent items. The internal consistency was higher for the anxiety-absent items than those of the state and trait anxiety items, but this tendency was not clear for the anxiety-present items. The trait anxiety items showed the lowest internal consistency for all Japanese groups, whereas the anxiety-present items showed the lowest a for American university students. It can be considered that this difference might induce the difference in two-factor structure between Japanese and people in Western countries.
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