Information Processing Approach

The information-processing approach provides additional information about these child/adolescent contrasts. According to John Flavell, cognitive growth is the acquisition of increasingly sophisticated and efficient problem-solving skills. For example, adolescents can hold more information in memory than children, which enhances their ability to solve complex problems. Improvements in memory reflect more than changes in capacity. Adolescents are better able to develop associations between words and ideas, which in turn facilitates remembering them. Part of their improvement is a result of the fact that adolescents know more than children. Adolescents also are better able to think abstractly and develop hypotheses. These skills in part reflect improvements in generalization, identifying similarities between previous situations and new ones. Changes in thinking and hypothesizing also enable adolescents to generate a wider variety of problem-solving strategies, which enhances their performance. Finally, adolescents know more about the nature of thought and memory. This metacognition, or ability to "think about thinking," increases the planning in their problem-solving behavior.

Information-processing research has helped explain some of the inconsistencies that appear in Piagetian research. According to Piagetian theory, people are located within particular cognitive stages and will reason at those levels of maturity in all problem-solving situations. Why, then, do most people show features of several stages, depending on the type of problem presented? According to information-processing research, variability in performance across different problem types is to be expected. The more one knows, the easier it is to use efficient cognitive processes. People will appear more cognitively mature performing tasks about which they are knowledgeable.

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