The Retrench or Retreat Game
You’re making a decision and want to check if you’re rationalizing. Imagine a friend or someone else whose opinion you respect raises a criticism of/question about your stated reason. Which feels easier?
Falling back to a different justification
Arguing with the friend to defend yourself
Maybe this is better as a “True Rejection” exercise, but if you find it a lot easier/more comfortable to shift arguments, your surface answer may have been a rationalization.
Idea One: Monday/Tuesday Game
On Monday, your proposition is true. On Tuesday, your proposition is false. Tell me a story about each of the days so I can see how they are different. Don’t just list the differences (because you’re already not doing that well). Start with “I wake up” so you start concrete and move on in that vein, naming the parts of your day that are identical as well as those that are different.
Idea Two: Sabotage Game
You’re definitely right, but unfortunately there’s a malevolent actor who wants to make you look a fool. And even more unfortunately, he’s creative and has a lot of resources. What does he sabotage? What evidence does he counterfeit? (This way you’re identifying the examples or the proofs by looking at them as structurally crucial.)