I treat them as personality sorting tools. Good fun, not too seriously.
That 4-square test, I only took 3 times:
2014
2016
2018.
But I’ve taken others too, Always end up more or less similar to “myself”.
Those three samples, each two yrs apart, only shifted up and right or down and left a tiny bit, so my opinions on things is probably relatively consistent.
As far as the overlay, I picked that one as it was the most logical to me.
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