That's like saying stuff has gotten more expensive over time because of inflation. Yes it's literally true, but everyone knows to control for inflation. In the

That's like saying stuff has gotten more expensive over time because of inflation. Yes it's literally true, but everyone knows to control for inflation. In the same way, because of the Flynn effect, average score on 1960-IQ tests is higher than 100. IQ does change over time. Anyway just because it wasn't designed to have a linear meaning doesn't mean it's useless. It measures what percent of the population scored better and worse than you. That's still a useful fact to know, just like people talk about "the top 1%" instead of specifying exact income brackets.