Theory

1
Theory

• A set of stated postulates or assumptions
• must be related to each other, and
• must be internally consistent
• A set of definitions of terms and/or concepts
• Which are formulated on the basis of observation
  and experience.

2
Criteria of a Good Theory

• Importance
• Preciseness and Clarity
• Parsimony or simplicity
• Comprehensiveness

3
Criteria of a Good Theory

• Operational
• Empirical validity/verifiability
• Stimulating
• Useful

4
Models of Theory
Holland
Roe
Needs
Typology
Ginzberg
Krumboltz
Developmental
Social-Learning
Super
Tiedeman
Trait Factor
Parsons