Osterhaus, C., Koerber, S., & Sodian, B. (2020). The Science-P Reasoning Inventory (SPR-I): Measuring emerging scientific-reasoning skills in primary school. International Journal of Science Education, 42, 1087–1107. https://doi.org/10.1080/09500693.2020.1748251
Materials (currently available in English, German, Finnish, and Hungarian)
Koerber, S., & Osterhaus, C. (2019). Individual differences in early scientific thinking: Assessment, cognitive influences, and their relevance for science learning. Journal of Cognition and Development, 20(4), 510–533. https://doi.org/10.1080/15248372.2019.1620232
Materials (currently available in English and German)