Competence with fractions predicts gains in mathematics achievement.
Competence with fractions predicts gains in mathematics achievement.
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DOI：
10.1016/j.jecp.2012.06.004
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发表时间：
2012-11
影响因子：
2.6
通讯作者：
Geary DC
中科院分区：
文献类型：
--
作者：
Bailey DH;Hoard MK;Nugent L;Geary DC
分数知识对数学成绩有预测作用，但分数知识与数学成绩之间的协同发展模式还不清楚。我们评估了这种共同发展，通过检查之间的交叉滞后关系的分数和数学成绩的概念知识的措施，在六年级和七年级（n = 212）。交叉滞后效应表明，在控制了工作记忆和智力的中央执行成分后，六年级分数概念测量的表现预测了一年的数学成绩（β = .14，p<.01），但六年级数学成绩并不能预测分数概念测量的成绩（β = .03，p>.50）。在后续评估中，我们证明了计算分数的流畅性的措施显着预测七年级的数学成绩以上和超越流畅性的影响，在计算整数算术，数字流畅性和数字线任务的性能，中央执行跨度和智力。结果提供了实证支持的假设，分数的能力的基础，在一定程度上，随后在数学成绩的收益。
Competence with fractions predicts later mathematics achievement, but the co-developmental pattern between fractions knowledge and mathematics achievement is not well understood. We assessed this co-development through examination of the cross-lagged relation between a measure of conceptual knowledge of fractions and mathematics achievement in sixth and seventh grade (n = 212). The cross-lagged effects indicated that performance on the sixth grade fractions concepts measure predicted one year gains in mathematics achievement (β = .14, p<.01), controlling for the central executive component of working memory and intelligence, but sixth grade mathematics achievement did not predict gains on the fractions concepts measure (β = .03, p>.50). In a follow-up assessment, we demonstrated that measures of fluency with computational fractions significantly predicted seventh grade mathematics achievement above and beyond the influence of fluency in computational whole number arithmetic, performance on number fluency and number line tasks, and central executive span and intelligence. Results provide empirical support for the hypothesis that competence with fractions underlies, in part, subsequent gains in mathematics achievement.
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影响因子：
2.6
作者：
Geary, David C.;Hoard, Mary K.;Nugent, Lara
通讯作者：
Nugent, Lara
影响因子：
1.7
作者：
Geary DC;Bailey DH;Hoard MK
通讯作者：
Hoard MK
影响因子：
4
作者：
Geary DC
通讯作者：
Geary DC
影响因子：
22.4
作者：
ROGOSA, D
通讯作者：
ROGOSA, D
影响因子：
2.6
作者：
Siegler, Robert S.;Thompson, Clarissa A.;Schneider, Michael
通讯作者：
Schneider, Michael