The "circumplex" and curvilinear functions.
Eckblad
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GF
Institute of Psychology, University of Oslo, Norway.
D000223:Adaptation, Psychological; D005190:Family / Q000523:psychology*; D005196:Family Therapy; D006801:Humans; D015233:Models, Statistical; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011594:Psychometrics