Original research, methodology deep-dives, and comparison guides for personality assessments.
Big Five, DISC and Enneagram measure traits, behavior and motivation — three complementary layers. Here is what reading them together reveals that no single test can.
The two engines behind your IQ: raw in-the-moment reasoning (Gf) and accumulated knowledge (Gc), how they diverge with age, feed each other, and which one you can actually train.
The most replicated finding in psychology. Spearman's g, the positive manifold, neural efficiency, factor analysis, and why your Full Scale IQ is essentially an estimate of g.
A Five-Factor (OCEAN) guide: traits vs types, facets, validity, career cues, limits, and interpreting scores responsibly without mistaking labels for identity.
Clear guide to MBTI preferences and Jungian cognitive functions (Ne, Ni, Fi, Ti…): stacks, psychometric realism, overlaps with traits, teamwork & growth uses.
Learn the nine Enneagram motivations as coping strategies—not cartoons: wings, instincts, ethics, relational & leadership uses, pairing with empirical measures.
RIASEC (Holland) interests explained: hexagon model, congruence evidence, pitfalls, three-letter profiles, majors/pivots—without deterministic labels.
DISC unpacked (D/I/S/C blends): behavioral focus, validity limits, meeting & feedback tweaks, teaming ethics, translating profiles into skills—not stereotypes.
Attachment patterns in romance & work: dimensional basics, teaming cues, ethics (avoid diagnosing coworkers), practical skills cultivating relational security.
EQ vs IQ decoded: overlaps, myths, trait vs ability measures, trainable empathy & regulation habits—and where emotion skills strengthen reasoning clarity.
What IQ scores sample: general ability (g), core subtests, prediction limits, fairness & Flynn nuances, misconceptions, constructive interpretation—not rank.