Artificial intelligence, machine learning and deep learning.
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Behavioral Research, 
Personality and Individual Differences,
Raymond Cattell's personality model. 
Raymond B. Cattell
(Anxiety and Stress)
Personality Theory and Assessment,
Cognitive,group.behavior. 
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Psychology is an academic and applied discipline involving the scientific study of human mental functions and behavior. 

The five factors,
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https://www.mayoclinic.org
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the personality traits of a group. 
in psychology  behavioral characteristics

apply science for the benefit of all." 
Cattell wanted psychology to become more like other sciences, whereby a theory could be tested in an objective way that could be understood and replicated by others.

 the scientific journal literature, and among the most productive psychologists of the 20th century.https://en.wikipedia.org/wiki/Raymond_Cattell

 explored the basic dimensions of personality and temperament, 
the range of cognitive abilities, 
the dynamic dimensions of motivation and emotion, 
the clinical dimensions of abnormal personality, patterns of group 
syntality and social behavior, 
applications of personality research 

Raymond B. Cattell

research into intrapersonal psychological structure. 
His work also explored the basic dimensions of personality and temperament, 
the range of cognitive abilities, 
the dynamic dimensions of motivation and emotion, 
the clinical dimensions of abnormal personality, patterns of group 
syntality and social behavior, 
applications of personality research to psychotherapy and learning 
theory, predictors of creativity and achievement, 
and many multivariate research methods including the refinement of factor analytic methods for exploring and measuring these domains. 

In psychology, trait theory is an approach to the study of human personality. Trait theorists are primarily interested in the measurement of traits, which can be defined as habitual patterns of behavior,