Single-case experimental designs (SCEDs) provide a time- and cost-effective alternative to randomized clinical trials and offer significant advantages in terms of internal and external validity. A brief history and primer on SCEDs is provided, specifically for use in suicide intervention research. Various SCED methodologies, such as AB, ABAB,…

This study presents three cases of adults with profound developmental disabilities in which assessment data showed that self-injurious behavior occurred in at least two test conditions and describes a method used to analyze the effects of treatments based on hypotheses of multiple control. (Author/DB)