Wolpe developed the Subjective Units of Disturbance Scale (SUDS) for assessing the level of subjective discomfort or psychological pain.
Richter magnitude scale | scale | Moment magnitude scale | International System of Units | Gaussian units | Fujita scale | Scale model | scale model | Scale insect | Rostral scale | Lorentz–Heaviside units | Data rate units | Scoville scale | Mercalli intensity scale | International Scale of River Difficulty | Distress and Coma | Beaufort scale | Units of measurement | Synoptic scale meteorology | Supralabial scale | subjective | Small-scale agriculture | respiratory distress syndrome | Rankine scale | moment magnitude scale | Medvedev–Sponheuer–Karnik scale | International Commission on Radiation Units and Measurements | Infant respiratory distress syndrome | Hamilton Rating Scale for Depression | Distress radiobeacon |