Editing Holland Codes (section)

==Overview==
Holland's theories of vocational choice, ''The Holland Occupational Themes'', "now pervades [[career counseling]] research and practice".<ref name=2010cp/> Its origins "can be traced to an article in the ''[[Journal of Applied Psychology]]'' in 1958 and a subsequent article in 1959 that set out his theory of vocational choices.&nbsp;... The basic premise was that one's occupational preferences were in a sense a veiled expression of underlying character."<ref name=obitathan>Athanasou, James. "[http://www.thefreelibrary.com/Obituary%3A+John+L.+Holland+1919-2008.-a0203231318 Obituary: John L. Holland 1919–2008]" ''Australian Journal of Career Development'', September 22, 2009.</ref> The 1959 article in particular ("A Theory of Vocational Choice", published in the ''[[Journal of Counseling Psychology]]'') is considered the first major introduction of Holland's "theory of vocational personalities and work environments".<ref name=2010cp/> 

Holland originally labeled his six types as "motoric, intellectual, esthetic, supportive, persuasive, and conforming".<ref name="2010cp" /> He later developed and changed them to: "Realistic (Doers), Investigative (Thinkers), Artistic (Creators), Social (Helpers), Enterprising (Persuaders), and Conventional (Organizers)".<ref name="nhgov">{{cite web
|url=http://www.nhes.nh.gov/elmi/career/documents/holland-code-sparks.pdf
|title=Holland Codes
|access-date=December 7, 2015
|publisher=[[Government of New Hampshire|New Hampshire Employment Security, Economic and Labor Market Information Bureau]]
}}</ref> Holland's six categories show some correlation with each other.<ref>{{Cite book|title=Making vocational choices: a theory of vocational personalities and work environments|last=L.|first=Holland, John|date=1997|publisher=Psychological Assessment Resources|isbn=0911907270|edition= 3rd|location=Odessa, Fla.|oclc=36648506}}</ref> It is called the RIASEC model or the hexagonal model because the initial letter of the region is equal to R-I-A-S-E-C when it is expressed as a circle connecting the regions of high correlation. Professor John Johnson of [[Pennsylvania State University|Penn State]] suggested that an alternative way of categorizing the six types would be through ancient social roles: "hunters (Realistic), shamans (Investigative), artisans (Artistic), healers (Social), leaders (Enterprising), and lorekeepers (Conventional)".<ref name=seva>{{cite web
|url=https://www.psychologytoday.com/blog/cui-bono/201306/selfless-service-part-ii-different-types-seva
|title=Selfless Service, Part II: Different Types of Seva
|access-date=December 7, 2015
|last=Johnson
|first=John
|date=June 1, 2013|publisher=[[Psychology Today]]
}}</ref> Holland offers full definitions of each type in his book, ''Making Vocational Choices: A Theory of Vocational Personalities and Work Environments (Third Edition)'' (1997).<ref name=hollandbook>{{cite book
 |last=Holland
 |first=John
 |author-link=
 |date=1997
 |title=Making Vocational Choices: A Theory of Vocational Personalities and Work Environments (Third Edition)'
 |url=
 |location=Florida
 |publisher=PAR
 |page= 
 |isbn=0-911907-27-0
}}</ref> 

According to the ''Committee on Scientific Awards'', Holland's "research shows that personalities seek out and flourish in career environments they fit and that jobs and career environments are classifiable by the personalities that flourish in them".<ref name=08win>"Award for distinguished scientific applications of psychology: John L. Holland". ''American Psychologist'', Vol 63(8), Nov 2008, 672–674.</ref> Holland also wrote of his theory that "the choice of a vocation is an expression of personality".<ref name="holl73">Holland, John. ''Making Vocational Choices: A Theory of Careers''. (Prentice-Hall, 1973).</ref>{{rp|6}} Furthermore, while Holland suggested that people can be "categorized as one of six types",<ref name="holl73"/>{{rp|2}} he also argued that "a six-category scheme built on the assumption that there are only six kinds of people in the world is unacceptable on the strength of common sense alone. But a six category scheme that allows a simple ordering of a person's resemblance to each of the six models provides the possibility of 720 different personality patterns."<ref name="holl73"/>{{rp|3}}