An instrument called the Selected Phrase Empathic Ability Key (SPEAK) was developed to measure empathy. The simply scored projective measure was then validated against physiological measures of reactive empathy. The SPEAK followed the classical instruments and used emotionally neutral line drawings (clip art) as projective stimuli for assessing empathy. The measure presented 113 of these drawings using a balanced analysis of variance design to 48 subjects. The reviewed 29-item instrument was administered to 1,323 mathematics staff and students, aged 15 to 63 years, from 24 tertiary institutions in England. Varimax factor analysis of the empathy scores showed two types of empathy. However, correlations with all 16 personality factors of Cattell's 16 Personality Factor (16PF) instrument were very low, with only two correlations reaching significance. This suggests that both types of empathy processes are probably additions to the 16PF. (Contains 1 figure, 2 tables, and 15 references.) (SLD)