Life history
The term life history has been given many meanings in several scientific fields. It can refer to a variety of methods and techniques that are used for conducting qualitative interviews, especially in the fields of sociology and anthropology.

# Biology
In biology the life history of an organism refers to the reproductive cycle of animals and plants. Some use the term "alternation of generations" when referring to algae, however as there are in many cases, especially the Rhodophyta, three stages the term "alternation" is not appropriate.

# Medicine
In medicine, a life history may refer to a general health assessment or standard medical history.  In seeking to identify certain health patterns, the interviewer may conduct a thorough interview. This form of interview can be utilized to find various kinds of sources for effects on the body and general health.

# Psychology
Life history theory is an analytic method of sociobiology for understanding reproductive behaviors in animals and people.

# Ethnography
In sociological and anthropological research, a life history refers to the overall picture of the informant's or interviewee's life.  The purpose of the interview is to be able to describe what it is like to be this particular person, that is, the one being interviewed.

## Background
The method was first used when interviewing indigenous peoples of the Americas.  The subjects were native American leaders. One interviewed them, and the subjects were asked to describe their lives as such, what it was like to be that particular person. The purpose of the interview was to capture a living picture of a disappearing (as such) people/way of life.
Later the method was used to interview criminals and prostitutes in Chicago. The subjects were asked to tell about their lives. The interviewers also looked at social- and police-records, and the society in general in which the subject lived. The result was a report in which one could read about (i) Chicago at that particular time; (ii) how the subject viewed his own life (i.e. `how it was like to be this particular person') and (iii) how society looked upon the subject what the consequence of this was for that particular person -- i.e. `social work'/-help, incarceration etc.

## Technique
In both cases, the one doing the interview should be careful not to ask "yes or no"-questions, but to get the subject to tell "the story of his or her life", in his or her own words.  It is common practice to begin the interview with the subject's early childhood and to proceed chronologically to the present.

# Bibliography
- Molles, Manuel C., Jr. (1999). Ecology: Concepts and Applications (International Edition ed.). Dubuque: The McGraw-Hill Companies, Inc. pp. 510pp. doi:QH541.M65 Check |doi= value (help). ISBN 0-07-042716-X.CS1 maint: Extra text (link) .mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"\"""\"""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{display:none;font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
- Smith, Robert Leo (2002). Elements of Ecology (Fourth Edition ed.). Singapore: Addison-Wesley Publishing Company, Inc. pp. 567pp. ISBN 981-4119-31-8. Unknown parameter |coauthors= ignored (help)CS1 maint: Extra text (link)