Florida Center for Reading Research, Florida State University, 2010 Levy Avenue, Suite 100, Tallahassee, Florida, 32310, USA.
Behav Res Methods. 2024 Dec;56(8):8492-8500. doi: 10.3758/s13428-024-02487-0. Epub 2024 Sep 4.
Previous research on co-development has focused on modeling the relations at the group level; however, how individuals differ in co-development may provide important information as well. Recent work has used vector plots to visually explore individual differences in co-development; however, these judgements were made based on visual inspection of a vector plot rather than the calculation of metrics. Here we propose two metrics that can be used to quantify co-development at the individual level: the co-development change ratio (CCR) and the angle of co-development metric (ACM). CCR provides information about the symmetry of development, examining whether an individual grew at the same pace in one skill relative to peers as compared to growth in the other skill relative to peers. ACM represents the relative amount and direction of change on each skill. This paper provides a tutorial on how to calculate and interpret these two metrics for quantifying co-development at the individual level.
先前关于共同发展的研究主要集中在群体层面的关系建模上；然而，个体在共同发展方面的差异也可能提供重要的信息。最近的研究使用向量图来直观地探索共同发展中的个体差异；然而，这些判断是基于对向量图的视觉检查，而不是对度量的计算。在这里，我们提出了两个可以用于量化个体层面共同发展的指标：共同发展变化率（CCR）和共同发展角度度量（ACM）。CCR 提供了关于发展对称性的信息，检查个体在一项技能上相对于同伴的成长速度是否与另一项技能相对于同伴的成长速度相同。ACM 代表每个技能上变化的相对数量和方向。本文提供了一个教程，介绍如何计算和解释这两个指标，以量化个体层面的共同发展。
