“…Although content categories have been used most consistently to investigate internal psychodynamics and characterological traits, one group of researchers (Gottschalk & Frank, 1967;Gottschalk, Winget, & Gleser, 1969) have concluded that "the relative magnitude of an affect can be validly estimated from the typescript of the speech of an individual using solely content variables and not including paralariguage variables" (Gottschalk & Gleser, 1969, p. 96). A number of studies have been carried out that directly or indirectly address this issue (Cook, 1969;Gottschalk & Frank, 1967;Hart & Brown, 1974;Mahl, 1956Mahl, , 1959Markel, Meisels, & Houck, 1964;Markel & Roblin, 1965;Mehrabian & Ferris, 1967). Though the empirical findings are somewhat equivocal, Mahl's (1956) theoretical assessment that "the most valid measures [of transitory states] will be based on the expressive [i.e., extralinguistic] aspects of speech rather than on the manifest content measures" (p. 13) is still most compelling, empirically and theoretically (see Mahl, 1959, for a theoretical discussion of this issue; see Cook, 1969;Markel & Roblin, 1965, for some empirical evidence).…”