Optimal Design Software The Optimal Design for Multi-Level and Longitudinal Research is a free stand-alone software program for performing statistical power calculations of impact evaluation studies, particularly group-randomized trials. Click here to access its current version and documentation. Suggested citation: Raudenbush, S. W., et al. (2011). Optimal Design Software for Multi-level and Longitudinal Research (Version 3.01) [Software]. Available from www.wtgrantfoundation.org.
We also offer a consultation service. The work reported here has been generously funded by the William T. Grant Foundation. |