Well, well, well, that’s a tough one! It’s like asking which flavor of ice cream is the best! But if I had to pick, I’d say that the Wechsler Adult Intelligence Scale (WAIS) is pretty darn accurate. It’s been around for a while and has been tested and refined over time, so you know they’ve got their act together. Plus, it covers a wide range of cognitive abilities and has a ton of different subtests, so you’re pretty much guaranteed to get a well-rounded assessment of your smarts.