A four-phase investigation was completed to analyze the utility of forced-choice preference assessments when response effort and reinforcer delays are altered within a subsequent reinforcer assessment. The results indicated that access to highly preferred stimuli continued to serve as a reinforcer when increased response effort was required. When…

Studies using fear-conditioning paradigms have found that anxiety patients are more conditionable than individuals without these disorders, but these effects have been demonstrated inconsistently. It is unclear whether these findings have etiological significance or whether enhanced conditionability is linked only to certain anxiety…

Participants from a fitness club were randomly assigned to control (n=50), placebo (n=50), and stimulus control (n=100) groups to study the isolated effects of stimulus control on attendance. Control stimulus group was given "exercise" key chains as the stimulus control. Stimulus control by itself was not an effective intervention for…

Available from: Sage Publications, Inc., 275 South Beverly Drive, Beverly Hills, California 90212. Presented are guidelines for the identification of target behaviors and suitable intervention techniques by therapists using behavior modification techniques. (IM)