just found the book and looked up what it says about I and E.
extrovert: ………………… introvert:
sociability ………………. territoriality
interaction ………………. concentration
external ………………. internal
breadth …………….. depth
extensive …………….. intensive
multiplicity of relationships .. limited relationships
expenditure of energies …… conservation of energies
interest in external events .. interest in internal reaction
this book was written by Keirsey and Bates based on Jung and Myers typology. on the back cover, it says: “please understand me” provides a useful vocabulary and phraseology for applying th jung-myers concepts of type.”
by the way, it’s a great book. 😉 (if you’re into stuff like this)