Is MBTI scientifically validated for relationship compatibility?

Not really. While MBTI is useful for understanding personality differences, research shows it's a weak predictor of relationship success. Attachment style, values alignment, and emotional intelligence are far stronger predictors.

What's more important than MBTI type matching?

Shared values, similar life goals, compatible attachment styles, emotional intelligence, willingness to compromise, and the ability to manage conflict. These predict success far better than four letters.

Should I use MBTI when dating?

Use it as one data point, not the deciding factor. Learning someone's type helps explain their communication style and values. But don't reject someone because their type is "incompatible" with yours. Meet the actual person first.