title: SEVEN MISSING NORMAL PERSONALITY FACTORS IN THE QUESTIONNAIRE PRIMARIES.
abstract: Rather more than 16 primary factors, by factor-number tests, have regularly been found from the personality sphere in Q-data.
authors.forename: R B
authors.initials: RB
authors.lastname: Catell
authors.forename: K H
authors.initials: KH
authors.lastname: Delhees