Numerical bias in bounded and unbounded number line tasks.

@article{Cohen2011NumericalBI,
  title={Numerical bias in bounded and unbounded number line tasks.},
  author={Dale J. Cohen and Daryn R. Blanc-Goldhammer},
  journal={Psychonomic bulletin & review},
  year={2011},
  volume={18 2},
  pages={331-8}
}
The number line task is often used to assess children's and adults' underlying representations of integers. Traditional bounded number line tasks, however, have limitations that can lead to misinterpretation. Here we present a new task, an unbounded number line task, that overcomes these limitations. In Experiment 1, we show that adults use a biased proportion estimation strategy to complete the traditional bounded number line task. In Experiment 2, we show that adults use a dead-reckoning… CONTINUE READING
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