Thinkers and Researchers: have studied Human Character and 'Personality'

"Many Thinkers and Researchers: have studied Human Character and 'Personality' over the centuries; The 16PF Questionnaire traits, are part of a multi-variate personality model that provides a broader framework including: 1.) Environmental, 2.) and Hereditary patterns of the traits - 3.) patterns of group and social behavior, learning theory, 4.) predictors of creativity and achievement, 5.) Quest To Discover, The Basic Factors Of Individual Differences, 6.) Developmental, 7.) Personality Basic traits resolved into Clusters, Humans possess characteristics or traits that are stable, and vary from individual to individual, this can be measured, with the 16PF was originally published in 1949 and is a questionnaire for personality assessment; How to Use The 16PF, (the "Big 5" personality factor model.)