The following article is part 1 in a series.

Some time ago, I wrote about a flawed question, in The Official SAT Study Guide from the College Board. In trying to understand the thinking of the question writer, I reviewed the official explanations to the test that are available on the College Board's website through its online course.

In comparison to the commercial SAT-prep books, the material that comes from the College Board is of much higher quality. That's not surprising, of course, since it's the College Board's test, and they get to reuse all those questions that they have spent so much time (and money) writing, editing, and validating.