Effects of content and intonation on perceptions of verbal reinforcers.
D000328:Adult; D000367:Age Factors; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012057:Reinforcement, Verbal; D012737:Sex Factors; D012938:Social Perception; D013637:Tape Recording; D014831:Voice