Which two prominent personalities influenced psychometrics at the University of London when Eysenck joined

Raymond Cattell (March 20, 1905–February 2, 1998) was 11 years older than Eysenck (March 4, 1916–September, 4, 1997) and outlived Eysenck by five months. Both Cattell and Eysenck studied at the University of London and both were influenced by the great psychometricians Charles Spearman and Cyril Burt.

the first two-party system consisted of the federalist party, who supported the ratification of the constitution, and the democratic-republican party or the anti-administration party (anti-federalists), who opposed the powerful central government, among others, that the constitution established when it took effect in