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Cronbach’s α coefficients and correlation coefficients between the four short versions of the STAI-S scales and the full-length scale (n = 1,142).
| Name | α | r |
| STAI-S-4 item | 0.823 | 0.947 |
| STAI-S-6 item | 0.871 | 0.970 |
| STAI-S-8 item | 0.899 | 0.980 |
| STAI-S-10 item | 0.917 | 0.987 |
