This was a really fun book. I tested my dog with it and I believe she was 120-130 IQ, though I have to admit I was very biased toward rating her highly. She was a very intelligent dog, though. For example when my mom would ask my stepdad if he wanted beer, Lucy knew beer was a liquid, and she would respond to this by rushing to her water bowl to tell my mom it was empty. She also used to "shiver" to be let back in because she got to come in when she shivered outside in the winter... and she'd start trying to shiver in the summer as if she were cold.
But the book does lose a star because when I was a kid I didn't know all the newspapers. There was a question asking "if your dog could read, what newspaper would it read?" Wall Street Journal, New York Times, USA Today, and World Weekly News I think. I didn't know all those papers when I was 10 or 11 so I didn't know which question represented Lucy best.
Overall it is an enjoyable book and it is timeless. Still a great gift for a dog lover 18 years after I received it.