Considering the current divorce rate and instability of relationships, I suggest to do a test on first date. The test include:

  1. IQ test
  2. EQ test, including discovering the person's social protocol
  3. General Knowledge
  4. Aesthetics by choosing music, art, objects
  5. Philosophy, basic belief, ideas, capability of understanding abstract ideas
  6. Correlation test: find strong correlation out of a complex system, such as showing a picture of a building, letting the person guess which pillar is the weight bearing one. An another example is watching RTS games, let the person guess which team will win. Or analyze a historic political movement, such as why did Japan attack the US, or the implication of tax cut/ tax hike on national debt.

I'd like to get your comments on this!