Purpose
Reasoning and creativity can relate, but originality, expertise, motivation, and environment are not reducible to IQ.
Begin with purpose rather than asking which score is universally better.
Measurement differences
Compare content, limits, norms, reliability, validity, preparation, and decision rules.
Correlation does not make measures interchangeable.
What to use
Use evidence validated for the question. Admissions, clinical evaluation, grades, creativity, and emotion need different evidence.
Do not convert scores without a justified publisher method.
COMMON QUESTIONS