Testing the knitter's ability to form yarnovers correctly, make various decreases, and follow a simple eyelet pattern.
Edited April 30, 2007 to add: The evaluators considered these swatches to be nicely worked with good tension. Swatch 12 had a reminder to "keep decreases on needle tips" (to minimize stretch).
And now that those are knitted, blocked and labeled (and photographed for your entertainment) it's time for me to answer the 4 questions that refer to these swatches.