HOW DO I CHOOSE MY OCCUPATION?
This theory states that how the original family
behaved toward the child (warm or cold) is directly related to how a person chooses a
career either person or non-person directed. Such careers as astronomy, engineering, and
accounting would be classified as non person directed careers.
2. Self-Concept Theory 
The self-concept theory hypothesizes how a person, consciously or
unconsciously, defines oneself in terms of self-concept predisposes one to seek that type
of career choice.
What kind of person are you?
Personality theory classifies persons into types: The basic assumption is that people select a career similar to their type of personality fit. (Resource "Self-Directed Search "(SDS) Specimen Set, John L. Holland)
4. Chance (Fate) 
This theory is classified into three stages:
Choices take place over a 8 to 10 year period. A fantasy stage occurs between years 10-12. A tentative period occurs between 12-17. A realistic period occurs between 17-20.
2. During these periods a person makes a series of decisions that gradually reduce the number of choices left.
3. Every choice ends up being a compromise.
The Psychology of Occupations,
1956 reprinted, Salem New York: Ayer Co., 1977