Knowledge Node Summary

Consider whether the point, change etc. makes a difference towards the goal of a negotiation. This may be the main evidence in support or otherwise. Isolate the point being made and look carefully for the effects of making the proposed change. Consider both direct effects and look carefully for side effects or knock on effects. Consider whether each effect is desirable. Desirable and undesirable effects of a point can be used to either support or negate it.

A summary of expert opinion:

The knowledge named 'Identify Evidence in discussion' is considered to be very important.
In addition, the knowledge is thought to be rather complex and difficult to learn, it is mostly learned from experience, and is specialised knowledge.
Opinion is that it is justifiable knowledge.