Supporting data for "The mediating role of non-symbolic magnitude processing and symbolic-nonsymbolic mapping in the relation between spontaneous focusing on numerosity and mathematical achievement"

This thesis is a 2-year longitudinal study, aiming to investigate mediating role of non-symbolic magnitude processing and symbolic-nonsymbolic mapping in the relation between spontaneous focusing on numerosity and mathematical achievement among kindergarteners. The data set contained the data that measured kindergarteners' SFON tendency, working memeory, non-symbolic comparison skill, number line estimation and math performance.