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U.S. Department of Education
Institute of Education Sciences
NCES Kids' Zone
  
PEDAR: Research Methodology Bridging the Gap
The Beginning Postsecondary Students Longitudinal Study
Accuracy of Estimates
Data Analysis System
Statistical Procedures
Differences Between Means
Linear Trends
Adjustment of Means to Control for Background Variation
Executive Summary
References
Full Report (PDF)
Executive Summary (PDF)
Statistical Procedures


Three types of statistical procedures were employed in this report:

  1. testing differences between means (or proportions),

  2. testing linear trends, and

  3. adjustment of means to control for background variation.


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