What's New in April, 2010?

R

• Textbook Example: Multilevel Analysis by Joop Hox, Chapter 2

SAS

• FAQ: How can I generate a map in SAS using an external shape file?

SPSS

• FAQ: How can I perform a Sobel test on a single mediation effect in SPSS?
• FAQ: How can I analyze multiple mediators in SPSS?

Stata

• FAQ: How can I create dyad IDs?