The present study longitudinally investigated proportional reasoning abilities in early elementary school before the start of its instruction. Three aims were put forward: (a) distinguishing the different developmental states in young children's understanding of missing-value proportional situations, (b) investigating how children transition…

Noting that the naming of Chinese characters involves lexical access not present in alphabetic orthographies, this study sought to locate the frequency effects in lexical decisions and naming of Chinese characters. Results indicated that a clear frequency/regularity interaction exists in regular and lexical naming, but this interaction is…