6 items
A 6-item short form of the state subscale of the STAI. Assesses transient, momentary anxiety — suitable for repeated-measure and EMA designs.
Scoring
Items 1, 4, 5 (calm, relaxed, content) are reverse-scored. Mean of all items (1–4), then multiply by 20 for a 20–80 score comparable to the full STAI.
Citation
Marteau, T. M., & Bekker, H. (1992). The development of a six-item short-form of the state scale of the Spielberger State–Trait Anxiety Inventory (STAI). British Journal of Clinical Psychology, 31(3), 301–306.
doi:10.1111/j.2044-8260.1992.tb00997.xLicense: Free for research use.
I feel calm.
1–4 · "Not at all" → "Very much so"
I feel tense.
1–4 · "Not at all" → "Very much so"
I feel upset.
1–4 · "Not at all" → "Very much so"
I feel relaxed.
1–4 · "Not at all" → "Very much so"
I feel content.
1–4 · "Not at all" → "Very much so"
I feel worried.
1–4 · "Not at all" → "Very much so"
Use this scale in your own ESM/EMA study — embed it as a survey within SMAAT.