Psychology 202b
Advanced Psychological Statistics II
SAS programs, 2/10/2011
Today, we will use several SAS programs in class.
The first will help us do a
manual calculation
of a confidence interval for the conditional mean given a set of predictor values.
The second will show how to make SAS do the
same calculation
.
The third will demonstrate how to use SAS to calculate confidence intervals for
individual scores
.
The next program will give us information about a
simple regression
that we will use when we demonstrate error bars in
R
.
Our final program will show that
transformations
cannot always solve problems in regression.