CAUTION: that doesn't apply for socionic types.
E / I = strength of Input : low / high (Introverts are better inputters, they are "attentive")
S / N = velocity of Input : low / high (Precise versus Approximate data acquisition)
T / F = velocity of Output : low / high (Precise versus Approximate data output)
P / J = strength of Output : low / high (Judgers are better outputters, they are "decisive")
Input groups
ES : weak and slow
EN : weak and fast
IS : strong and slow
IN : strong and fast
Output groups
TP : weak and slow
FP : weak and fast
TJ : strong and slow
FJ : strong and fast