Blog

How personality psychology learned to read motives out of free-form text — Murray's needs and presses, McClelland's empirical scoring of nAch, nAff, and nPow, the proliferation of competing manuals, Winter's integrated running-text system, and the current state of the art in dictionary, supervised, and LLM-based content scoring.

What the public-domain IPIP schizoid items actually measure, how they diverge from the avoidant pattern that is often mistaken for it, and how the Schizoid–Avoidant Distinction Test triangulates the two using anhedonia, shame, rejection sensitivity, and the need to belong.

How a 1957 monograph from a UC Berkeley research group hardened into the most empirically supported geometric model of interpersonal behavior in personality psychology — and how the same circular structure now organizes the Big Five, attachment dimensions, DSM personality disorders, motive coding, CCRT scoring, and Millon's evolutionary styles.

Construct validity is a coordination problem between traits and the methods used to measure them. Campbell and Fiske gave us the matrix; Meehl gave us the conscience; Siever showed what disciplined multimethod work on a personality construct actually looks like.

Why opposites on the control axis and similars on the warmth axis tend to fit, how Theodore Millon's personality prototypes map onto the Interpersonal Circumplex, and how the Dovetails engine turns that theory into an actual read of a partner you have only just met.

How the Core Conflictual Relationship Theme operationalized Freud's concept of transference, why Merton Gill's interpersonal turn made it inevitable, and how the same construct quietly anticipated the modern emphasis on the therapeutic alliance and the contextual model of psychotherapy.

Why depressed and traumatised people retrieve autobiographical memories in vague summaries rather than specific episodes, how Williams and Broadbent's Autobiographical Memory Test put a number on it, and how cueing with schema-relevant words turns the AMT into a probe of personality organisation.

Defense mechanisms began as a clinical inference and ended up, by way of Vaillant's longitudinal work and Bond's questionnaire, as a self-report instrument with a stable three-factor structure. The DSQ-88 is what that history looks like when you operationalize it.

Bowlby and Ainsworth gave the field a typology. Hazan and Shaver moved it into adulthood. Brennan, Clark, and Shaver showed the typology was really two dimensions. The ECR-SF is the short, sturdy form of that two-dimensional measure.

Self-report and projective methods correlate poorly with each other not because one is wrong, but because they measure different layers of the personality. The case for integrative assessment — and what the IPPS battery is doing about it.

Rensink's mudsplash paradigm and the Luck-and-Vogel slot model converged on a deceptively simple finding: visual working memory holds about four items, and small changes outside that buffer are not consciously seen. The Scene Change Detection Task is a clinical instrument built directly on top of that finding.

Jane Loevinger built a developmental theory of personality maturation in which impulse control, interpersonal style, cognitive complexity, and self-concept all moved together along a single dimension. The WUSCT is what that theory looks like as a measurement procedure — and the reason it is still in use sixty years on.

How the Five-Factor Model came to underwrite personality disorder diagnosis — from the categorical mess of DSM-IV, through Costa and Widiger's translation project and the DSM-5 Alternative Model, to the HiTOP consortium and what is being signaled for DSM-6.