Cross-grade studies are valuable for the development of sequential curriculum. However such studies are time and resource intensive and fail to provide a clear representation to integrate different levels of representational complexity. Lin (Lin, 2006; Lin & Chiu, 2006; Lin, Chiu, & Hsu, 2006) proposed a cladistics approach in conceptual…

Thirty-five tests which measure cognitive abilities at the intermediate grade level and the related manual are intended to accompany the authors' 1973 monograph, "A Structure of Concept Attainment Abilities." Additional tests which measure these abilities (verbal, induction, memory, spatial, numerical, perceptual speed, evaluation, word fluency,…