Abstract: | The use of four different behavioral techniques in the treatment of six female clients with thunder and lightning phobia is described. The techniques (Systematic desensitization. Covert reinforcement. Stress inoculation training, and Self administered desensitization with tape recorder) were evaluated in single-case experimental designs, using both self-report, behavioral, and physiological data.The immediate and follow-up results showed that five of the clients were completely recovered and the sixth markedly improved after their respective treatment (10–14 session). These results and the questions concerning continuous assessment in single-case design and external validity of laboratory assessment in phobic conditions are discussed. |