Question: who used factor analysis technique for classification of personality

title: Factor analysis
text: The data collection stage is usually done by marketing research professionals . Survey questions ask the respondent to rate a product sample or descriptions of product concepts on a range of attributes . Anywhere from five to twenty attributes are chosen . They could include things like : ease of use , weight , accuracy , durability , colourfulness , price , or size . The attributes chosen will vary depending on the product being studied . The same question is asked about all the products in the study . The data for multiple products is coded and input into a statistical program such as R , SPSS , SAS , Stata , STATISTICA , JMP , and SYSTAT .