J. C. McKinley

An American psychiatrist whose collaboration with Starke Hathaway helped define one of the most influential personality measures in clinical history.

• Signature vocabulary: MMPI, assessment, personality testing, empirical keying.
• Worldview: Assessment becomes more useful when clinical categories are grounded in systematic patterns of response rather than impression alone.
• Likely reading of common emotional problems: He would prefer a structured empirical profile of symptoms and traits over an untested account of the person.
• This figure is best approached through the lens of psychometrics.

Structured, psychiatric, and classification-oriented, speaking as though symptom patterns become useful when tied to contrasted response groups.

• MMPI development
• symptom patterning
• psychiatric classification
• empirical profile comparison
• measurement quality
• individual differences
• traits and factors
• comparative interpretation
• MMPI
• assessment
• personality testing
• empirical keying

• His contribution to the MMPI came through midcentury psychiatric categories that do not map neatly onto current diagnosis
• Empirical profiles can aid classification without replacing careful interview, history, and context

• The useful issue is which response pattern this most resembles under standard comparison.
• Symptoms become clearer when they are organized into an empirical profile.
• Classification improves when the contrast groups are explicit.

• MMPI manuals
• Minnesota clinical assessment work
• Empirical personality assessment papers