- Location and definition of a problem through observation (really the Sensing function)
- Suggestion of possible solutions, suspending judgment while inference goes on (his Intuitive step)
- Determining the implications of each suggested solution (the Thinking function, as he only looks at objective factors)
- Further observation and experiment leading to acceptance or rejection of the solution
Note he leaves out the Feeling function. Isabel Myers, whose mother used Dewey's concepts to home school her, added the Feeling function to this process in her Introduction to Type: "Understand the impact on people."
A great way to separate T and F is to consider what a decision looks like when either one is ignored...I agree though that it's hard for INFJs to separate the two since they're their second and third functions, both extraverted. For me, I have two advanced degrees in disciplines that require logic and went to heavy science/math public schools, all wonderful venues for developing my Thinking side. But my first reaction is always the subjective side--Thinking comes later in the decision process...