2 ms·

In the meantime, in the US the IQ threshold for mental retardation had to be changed in the 70s from 85 to 70 because of reasons.

• pedroma 1y ago
  What is that threshold in China?
  • Sabinus 1y ago
    If we're going to downvote this comment then we must also downvote its parent.
• klipklop 1y ago
  Wasn't this done in the 1970's? I don't think this is really relevant to this discussion.