Wesvar51

WesVar 5.1 by Westat is a statistical software application designed for analyzing complex sample survey data. It focuses on variance estimation using replication methods, providing accurate standard errors, confidence intervals, and significance tests that account for stratification, clustering, and weighting in multistage designs. WesVar is well suited for survey statisticians and data analysts in government, academia, and research organizations who need design-consistent inferences from complex surveys.

Key capabilities include:

• Replication-based variance estimation methods, including jackknife, balanced repeated replication (BRR), Fay’s BRR, and bootstrap
• Use of either user-supplied or software-generated replicate weights
• Calculation of point estimates and variability measures for commonly used survey statistics (for example, totals, means, proportions, and ratios)
• Support for core survey design features such as stratification, primary sampling units, and weights
• Tools for producing clear, publication-ready tables and summaries

Developed by Westat, a leader in survey methodology, WesVar 5.1 offers a reliable framework for obtaining variance estimates and conducting inferential analyses that respect complex sample designs.

Wesvar51 is developed by Westat. The most popular versions of this product among our users are: 5.1 beta and 5.1. The name of the program executable file is WesVar51.exe.