Selection of appropriate strength parameters is an important aspect of slope stability analysis. This requires an understanding of the different laboratory strength tests available, selection of appropriate laboratory test and test parameters, and interpretation of test results. With an understanding of these items, the geotechnical engineer can confidently use lab test data and not rely entirely on typical published values. Mr. Lokteff will draw upon his 30 years of geotechnical engineering and laboratory testing experience to provide his insights into laboratory test selection, result interpretation, and strength parameter selection for slope stability analysis that should prove helpful to project-level engineers.