Abstract
Dynamic Wait-Listed Designs for Randomized Trials: new Designs for Prevention of Youth Suicide
Brown C H~~Wyman P A~~et al
This paper examines a new class of statistical designs where random assignment to intervention condition occurs at multiple times in a trial. As an example, the authors present a large ongoing trial to evaluate a gatekeeper training suicide prevention program in 32 schools which initially began as a classic randomized wait-listed design. A general result shows that dynamic wait-listed designs always have higher statistical power over a traditional wait-listed design. As with all wait-listed designs, dynamic wait-listed designs can only be used to evaluate short-term impact. (39 refs.)