Sign language is an effective form of alternative communication for persons with autism and other developmental disabilities. Only a few studies have systematically measured the effects of sign language on the vocal responses of its users. This study employed a multiple baseline design to evaluate the effects of sign language on the vocal responses of a four-year-old boy with autism. Results indicate that a reinforcement contingency placed only on sign responses is inadequate for maintaining vocal responses. When a reinforcement contingency is placed on sign responses as well as vocal responses that the user is capable of emitting in verbal imitation, both sign and vocal responses are maintained. Results are discussed in terms of the need for a reinforcement contingency placed on vocal and sign responses, the effects of teaching procedures on response variability, and the need for future research to examine procedures utilized to teach sign language to persons within the developmental disabilities population.

Thesis (M.A.)--University of Hong Kong, 1986.

Thesis (M.A.)--University of Hong Kong, 1986. / Also available in print.

The problem addressed in this exploratory research study was whether any correlational relationship existed between a selection of personality and demographic variables (considered as aspects of the self-concept construct) and selected subjective and objective measurements of verbal behavior. The purpose of the study was to achieve a better understanding of the dynamic monitoring process of the self-concept and the possible relationship that may exist between it and certain quantifiable verbal behaviors. The conclusion of this study is that the self-concept construct does appear to be an influencing factor upon verbal behavior. It is considered that individuals are consistently interacting with their social environment to obtain feedback in order to test the self's perceptions of the social environment and its relationship to its environment.

One language intervention approach for individuals with autism involves teaching one response topography under multiple sources of control and then establishing that response under individual controlling variable. Another approach involves establishing one response topography under singular control and then using that response to establish the response topography under different controlling variables. The study sought to extend previous research by investigating the impact of each approach on the acquisition of verbal responses. Three of the eight participants acquired all target responses for at least one response topography. The results of previous research were not replicated directly and the findings were discussed in terms of preexperimental verbal repertoires and restricted interests.

The problem is to determine the feasibility of using student teacher observer teams trained in interaction analysis to develop the capacity of student teachers to change their classroom verbal behavior.

The central problem of this study was to determine the effects of feedback of observations recorded by an elementary college supervisor for the verbal and nonverbal classroom behavior of elementary student teachers.

The conditional control of equivalence has received much attention in the analysis of verbal behavior. While previous research identified conditional control of relational responding and conditional control of equivalence class formation, this study investigated the possibility of conditional control of members of an equivalence class. Following baseline conditional discrimination training and equivalence testing, subjects were taught to select a particular member in the presence of a Green background screen and another member in the presence of a Red background screen.

Intervals of specified fluent verbal behavior of two stutterers received response-contingent positive stimulation in the form of an accumulating points system, Assessment was made o the effect of experimental manipulation on the frequency of fluent speech intervals as well as on the frequency of subject-identified stuttering behaviors observed during the experimental session. The results indicated significant change in fluent interval frequency in the spontaneous speech of one subject. Effect of the experimental contingency was not demonstrated in the oral reading of a second subject. Stuttering. behavior data indicated that an indirect effect of the positive stimulation can change the frequency of behavior not being contingently stimulated.

This study evaluated the effectiveness of a workshop designed to train adults to use supportive verbal behavior during distressful situations. Participants were trained to provide descriptive, empathetic and hopeful statements using instructions, rationales, modeling, role-play, feedback, and rehearsal. A pre-post design was used to analyze the effects of the training on verbal and non-verbal behaviors of four females during simulation scenarios. Results indicate all four participants provided maximum support statements above pre-training levels during post-training simulation and written assessments.