Factor analysis of 262 college students' responses to Vando's (1970, 1974) Reducer-Augmenter Scale (RAS) yielded three factors interpreted as Musical Reducing-Augmenting, General Lifestyle Reducing-Augmenting and Physical Thrill Seeking. Responses by 175 other students and by 238 male correctional inmates showed very similar solutions on target rotation. Subscale scores based on the three factors were correlated against the Eysenck Personality Inventory, the Sensation Seeking Scale, the Novelty-experiencing Scale, the Arousal-Seeking-Tendency Scale, hours of sleep, absolute auditory threshold and personally set volume for listening to stereo music. Some major findings were as follows: (1) The General Lifestyle subscale correlates substantially with measures of arousal and sensation seeking; (2) the Physical Thrill Seeking subscale correlates substantially with other measures of physical thrill seeking; (3) the Musical subscale correlates substantially with preferred stereo volume [r(73) = 0.51, P < 0.01], but not with absolute auditory threshold [r(40) = 0.08, NS]. Implications for the construct validity of the RAS and possible future refinement of the scale are discussed.