This study collected validity indices related to a CBT of emotional capability. In study 1, in a sample of preschoolers, emotional capability was found not to have significant relations to most of the G elements. Comparison of different age groups presented that emotional capability measured by a CBT might have the characteristics of crystallized intelligence. Test scores augmented according to age increase and it reached to the peak at the middle of adulthood. Specifically, a quadratic relationship was found between age and emotional capability. Criterion validity indices gathered in Study 1 and 2 showed that a computer-based emotional capability tests should have a proper level of validity to predict respondents' mental health and good evidences of convergent validity with measurement tools of emotion.