This is one of the best kinds of personality tests, the kind that tells you something you already know.
As predicted by BD, I am a dedicated reader, scoring almost 100% on the “obsessive-compulsive bookworm” and “literate good citizen” ranges, about 50% on the “book snob” range, very low on the “fad reader” range, and the range for “non-reader” seems to be entirely skewed to the left. (The graph didn’t show up well, so I axed it.)