A Yes/No questionnaire measuring Gray's two neurobiological systems: Sensitivity to Punishment (related to the BIS) reflects anxiety and behavioural inhibition in response to threat; Sensitivity to Reward (related to the BAS) reflects approach motivation and reward-seeking. An alternative to the Carver & White BIS/BAS scales.
Torrubia, R., Ávila, C., Moltó, J., & Caseras, X. (2001). The Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ) as a measure of Gray's anxiety and impulsivity dimensions. Personality and Individual Differences, 31(6), 837–862.
Free access to 2023+ psychometric scales at PsychScales