Rationality – a trait that enables convergence with  prescriptions (laws, rules, decisions, relations, plans, etc.) to extent that creative approach in front of eventual changes in time and space is limited. In socionics, rationality is considered as an opposite to irrationality.

In the international designations of socionics, consisting of four letters, the fourth letter J stands for rationality.

Here below in the table there are given main differences between rationality and irrationality, which can be used when determining the sociotype of a person.

Rationality (J)
Irrationality (P)
After having a tantrum I cann’t find peace for a long time I can find peace easily
If I am suddenly interrupted while executing my duties It makes me feel discomfort I’m taking it easy and peacefully
Laws and rules make a person feel secured limit the creative expression of a person
If the implementation of a project is late I will definitely remind about the deadline I will adapt to changes, as all things are unpredictible

Rational sociotypes:

  • Hugo
  • Robespierre
  • Hamlet
  • Maxim
  • Jack
  • Dreiser
  • Shtirlits
  • Dostoevsky