A metacognitive analysis of decision making in adolescence.

Samples of 43 early (CA = 13 years) and 41 middle (CA = 15 years) adolescents were compared on three categories of metacognitive knowledge as they relate to decision making--person knowledge, task knowledge and strategy knowledge. Metacognitive knowledge was assessed using a 19-item questionnaire. Consistent with our hypothesis, middle adolescents showed significantly greater metacognitive knowledge than early adolescents on all three scales. Self-reported decision making style (using the Flinders Adolescent Decision Making Questionnaire) and decision making performance on a hypothetical scenario were also measured. Middle adolescents reported a more competent decision making style than early adolescents, while group differences on the scenario were not found. Adolescents completing the scenario scored significantly higher on all measures of decision making metacognition. Significant correlations were found between metacognitive knowledge of decision making, self-reported decision making style and performance on the decision scenario task. By middle adolescence understanding of what is involved in the activity of decision making is well developed. This growth in understanding, accompanied by changes in social domains, plays a part in decision execution and style.