Stage theory

Stage theories are based on the idea that elements in systems move through a pattern of distinct stages over time and that these stages can be described based on their distinguishing characteristics. Specifically, stages in cognitive development have a constant order of succession, later stages integrate the achievements of earlier stages, and each is characterized by a particular type of structure of mental processes which is specific to it. The time of appearance may vary to a certain extent depending upon environmental conditions.[1]

"Stage theory" can also be applied beyond psychology to describe phenomena more generally where multiple phases lead to an outcome. The term "stage theory" can thus be applied to various scientific, sociological and business disciplines. In these contexts, stages may not be as rigidly defined, and it is possible for individuals within the multi-stage process to revert to earlier stages or skip some stages entirely.

Piaget's theory of cognitive development

See also: Theory of cognitive development

Jean Piaget's theory[2] consists of four stages: Sensorimotor: (birth to 2 years), Preoperations: (2 to 7 years), Concrete operations: (7 to 11 years), and Formal Operations: (11 to 16 years). Each stage has at least two substages, usually called early and fully.

Underlying assumptions

Sensorimotor stage (birth to 2 years)

This stage is represented when infants obtain some control over their surroundings by sensory and motor schemes. [3] Infants start to identify their actions and the consequences of their actions. [4]

A child comes into the world knowing almost nothing, but they have the potential that comes in the form of:

Infants use these potentials to explore and gain an understanding about themselves and the environment. They have a lack of object permanence, which means they have little or no ability to conceive things as existing outside their immediate vicinity. For example: when you place a barrier, such as a piece of wood, in front of an object an infant will believe that the object is nonexistent.

Object permanence

Study

Sensorimotor play

This play does not provide a purpose other than sensation:

Substages of Piaget's sensorimotor stage

Substage Age Piaget's Label Characteristics
1 Birth-1 month Reflexes Use of built-in schemes or reflexes such as sucking or looking; no imitation; no ability to integrate information from several senses.
2 1-4 months Primary circular reactions Accommodation of basic schemes (grasping, looking, sucking), as baby practices them endlessly. Beginning coordination of schemes from different senses, such as looking toward a sound; baby does not yet link bodily actions to some result outside the body.
3 4-8 months Secondary circular reactions Baby becomes much more aware of events outside his own body and makes them happen again, in a kind of trial-and-error learning. Imitation may occur, but only of schemes already in the baby's repertoire. Beginning understanding of the "object concept."
4 8-12 months Coordination of secondary schemes Clear intentional means-ends behavior. The baby not only goes after what she wants, but may combine two schemes to do so, such as knocking a pillow away to reach a toy. Imitation of novel behaviors occurs, as does transfer of information from one sense to another (cross-modal transfer).
5 12-18 months Tertiary circular reactions "Experimentation" begins, in which the infant tries out new ways of playing with or manipulating objects. Very active, very purposeful trial-and-error exploration.
6 18-24 months Beginning of representational thought Development of use of symbols to represent objects or events. Child understands that the symbol is separate from the object. Deferred imitation first occurs at this stage.

[7]

Preoperational stage (2 to 7 years)

Preoperational intelligence means the young child is capable of mental representations, but does not have a system for organizing this thinking (intuitive rather than logical thought). The child is egocentric – which is they have problems distinguishing from their own perceptions and perceptions of others. A classic example is, a preoperational child will cover their eyes so they can not see someone and think that that person can not see them either.

The child also has rigid thinking, which involves the following:

Concrete operations (7 to 11 years)

The concrete operational child will overcome the aspects of rigidity apparent in a preoperational child. These are:

The tasks of concrete operations are:

It is important to realise that operations and conservations do not develop at the same time. They develop gradually and are not an ‘all or nothing’ phenomenon. For example, the first to develop is number conservation followed by mass conservation, area conservation, liquid conservation and finally solid volume conservation. Thinking is not abstract. It is limited to concrete phenomena and the child’s own past experiences.

Formal operations (11 to 16 years)

Limitations of Piaget's theory

A popular criticism is that Piaget underestimated the abilities of an infant. Studies have shown that they have more of a capacity in memory and understanding of objects than he believed. [8]

Neo-Piagetian and Post-Piagetian stage theories

Juan Pascaual-Leone was the first to propose a neo-Piagetian stage theory. Since that time there have been several neo-Piagetian theories of cognitive development.[9] Only the ones that cover at least infancy through adulthood are mentioned here. These include the theories of Robbie Case, Grame Halford, Andreas Demetriou and Kurt W. Fischer. The theory of Michael Commons' model of hierarchical complexity is also relevant. The description of stages in these theories is more elaborate and focuses on underlying mechanisms of information processing rather than on reasoning as such. In fact, development in information processing capacity is invoked to explain the development of reasoning. More stages are described (as many as 15 stages), with 4 being added beyond the stage of Formal operations. Most stage sequences map onto one another. PostPiagetian stages are free of content and context and are therefore very powerful and general.

List of books formulating stage theories

Related works

See also

References

  1. ↑ Piaget, J. (1970). Piaget’s theory. In P. H. Mussen, (Ed.), Carmichael’s handbook of child development (pp. 703-732). New York: Wiley.
  2. ↑ Piaget, J. (1951 ). The psychology of intelligence. London: Routledge and Kegan Paul.
  3. ↑ Newman, B. M., & Newman P. R. (2012). Development Through Life: A Psychosocial Approach. Belmont, CA: Wadsworth, Cengage Learning, p. 36.
  4. ↑ Nolen-Hoeksema, S., Fredrickson B. L., Loftus G. R., & Wagenaar W. A.. (2009). Atkinson & Hilgard's Introduction to Psychology. Cheriton House, UK: Cengage Learning EMEA, p. 78.
  5. ↑ Nolen-Hoeksema, S., Fredrickson B. L., Loftus G. R., & Wagenaar W. A.. (2009). Atkinson & Hilgard's Introduction to Psychology. Cheriton House, UK: Cengage Learning EMEA, p. 78.
  6. ↑ Singer, D. G., & Revenson T. A. (1997). A Piaget Primer: How a Child Thinks. Madison, CT: International Universities Press, Inc. p. 44-45.
  7. ↑ Bee, H. L., & Boyd, D. (2010). The Developing Child. Boston, MA: Allyn & Bacon, p. 149.
  8. ↑ Bee, H. L., & Boyd, D. (2010). The Developing Child. Boston, MA: Allyn & Bacon, p. 148.
  9. ↑ Demetriou, A. (1998). Cognitive development. In A. Demetriou, W. Doise, K. F. M. van Lieshout (Eds.), Life-span developmental psychology (pp. 179-269). London: Wiley.
  10. ↑ Schueler, Annemarie (1980) An exploratory study of Egan’s four stages of educational development and their application to curriculum design in physical education
  • Bee, H. L., & Boyd, D. (2010). The Developing Child. Boston, MA: Allyn & Bacon.
  • Demetriou, A. (1998). Cognitive development. In A. Demetriou, W. Doise, K. F. M. van Lieshout (Eds.), Life-span developmental psychology (pp. 179-269). London: Wiley.
  • McLeod, S. A. (2010). Sensorimotor Stage - Object Permanence. Retrieved from http://www.simplypsychology.org/sensorimotor.html
  • Newman, B. M., & Newman P. R. (2012). Development Through Life: A Psychosocial Approach. Belmont, CA: Wadsworth, Cengage Learning.
  • Nolen-Hoeksema, S., Fredrickson B. L., Loftus G. R., & Wagenaar W. A.. (2009). Atkinson & Hilgard's Introduction to Psychology. Cheriton House, UK: Cengage Learning EMEA.
  • Piaget, J. (1970). Piaget’s theory. In P. H. Mussen, (Ed.), Carmichael’s handbook of child development (pp. 703-732). New York: Wiley.
  • Piaget, J. (1950). The psychology of intelligence. London: Routledge and Kegan Paul.
  • Schueler, Annemarie (1980) An exploratory study of Egan’s four stages of educational development and their application to curriculum design in physical education
  • Singer, D. G., & Revenson T. A. (1997). A Piaget Primer: How a Child Thinks. Madison, CT: International Universities Press, Inc.
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