Early scientific political psychology measured childhood experience against adult political personality

Evidence

Scientific approaches involve sampling cases from a designated universe to which one wishes to generalize and measuring each case both on the independent variable (in this first era, often on some psychoanalytically relevant dimension of early childhood experience) and on the dependent variable (here, usually some politically significant dimension of personality). — John T. Jost and Jim Sidanius, Political Psychology, 348

Categorization

• XREF: connects to: Childhood emotional tones get reapplied to adult situations — Mark Fisher, Ghosts of My Life: Writings on…, 436