Effects of different events' probabilities on the adjustment criteria in probability learning tasks
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Abstract
Two probability learning experiments were conducted with fifth grade children and university students to evaluate the predictive adjustment induced by different types of instructions. Four different probability distributions were used: random 0.5-0.5, random 0.8-0.2, non-random 0.5-0.5, and non-random 0.8-0.2. Instructions proposed four distinct task-adjustment criteria: by dogma, by reference, by training, and by faith. Dogma and training instructions facilitated the performance of adult subjects, who their lowest performance during faith instructions. Children tested under dogma and faith instructions showed the poorest performance. No systematic effects of probability values and distributions were observed on the percentage of correct responses and patterns of choice changes, although in many cases distribution of choices tended to adjust to the probability distributions.
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