On the development of Arabic three-digit number processing in primary school children
On the development of Arabic three-digit number processing in primary school children
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DOI：
10.1016/j.jecp.2012.08.002
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发表时间：
2012-12-01
影响因子：
2.6
通讯作者：
Nuerk, Hans-Christoph
中科院分区：
文献类型：
--
作者：
Mann, Anne;Moeller, Korbinian;Nuerk, Hans-Christoph
儿童两位数字加工的发展，特别是对位值理解的影响，最近受到越来越多的研究兴趣。然而，对于儿童中超出两位数范围的多位数，还没有对导致分解加工的位值影响进行研究。因此，我们在二年级到四年级的纵向设计中，通过百位距离效应、十位相容效应和单位百位相容效应来评估百位、十位和单位对三位数字加工的单独影响。在数字量值比较任务中，较强的百位距离效应表明，百位数的量值被优势加工。我们还观察到了数百位和单位位的分解并行处理指标，而不是百位和几十位的分解并行处理指标。在发展轨迹上，百距效应和单位百相容效应有随年级增长的可靠趋势。然而，分解的并行加工的意义和随年级的增加都被观察到不如预期的一致。后者是根据不同的处理策略以及区分两位数和三位数的特殊性来讨论的。综上所述，这些数据首次显示了儿童对三位数字的分解处理。然而，必须注意的是，结果还表明，两位数字处理的结果不能简单地推广到三位数字范围。(C)2012 Elsevier Inc.保留所有权利。
The development of two-digit number processing in children, and in particular the influence of place-value understanding, has recently received increasing research interest. However, place-value influences leading to decomposed processing have not yet been investigated for multi-digit numbers beyond the two-digit number range in children. Therefore, we evaluated the separate influences of hundreds, tens, and units on three-digit number processing by means of the hundred distance effect, the decade-hundred compatibility effect, and the unit-hundred compatibility effect in a longitudinal design from Grade 2 to Grade 4. In a number magnitude comparison task, a strong hundred distance effect indicated that the magnitudes of the hundreds digits were predominantly processed. We also observed indexes of decomposed parallel processing of hundreds and units digits but not of hundreds and tens digits. Regarding the developmental trajectories, the hundred distance effect and the unit-hundred compatibility effect showed a reliable trend to increase with grade level. However, both the significance and the increase with grade level of decomposed parallel processing were observed to be less consistent than expected. The latter is discussed in terms of different processing strategies as well as specificities differentiating between two- and three-digit numbers. Taken together, these are the first data showing decomposed processing of three-digit numbers in children. Yet, it must be noted that the results also indicate that findings from two-digit number processing cannot simply be generalized to the three-digit number range. (C) 2012 Elsevier Inc. All rights reserved.