Cutting edge software. Empowering research since 1971.
For more than 3 decades, HLM has defined the practice in modeling hierarchical data.
Structural Equation Modeling
LISREL is the progenitor of structural equation modeling, since 1976.
SuperMix offers advanced linear and nonlinear mixed effects modeling for biostatistics.
Fast, comprehensive analysis of longitudinal human growth data with Auxal.
March 13, 2023
Scientific Software International, Inc is pleased to announce the immediate...
September 29, 2022
SSI is pleased to announce an additional feature now available...
August 10, 2022
SSI is pleased to announce additional features now available in...