Characteristics of the speech of teachers of the deaf to hearing students and deaf students under oral-only and simultaneous communication conditions

Speech of teachers of deaf students to three groups of simulated students who were said to be: (a) hearing, (b) oral deaf, and (c) Simultaneous Communication users, was examined for a number of parameters including rate of utterance, acoustic characteristics, and perceived intelligibility. The results of these analyses are reported and implications for teachers’ communication with deaf students are examined.