Faces and phases of epistemic curiosity in science learning: A longitudinal study

Curiosity is central to children's development, particularly in science learning. This longitudinal study examines how epistemic curiosity, overall and its subtypes I-type and D-type, predicts scientific reasoning and science (physics) knowledge at the start (Grade 1) and end (Grades 3-4) of primary school, beyond prior knowledge and cognitive abilities. Parents of 122 children (mean age 6.12 years) completed an 11-item curiosity questionnaire. Scientific reasoning and science knowledge were assessed with standardized inventories and a 25-item physics test. Overall curiosity predicted early reasoning, whereas I-type curiosity predicted later science knowledge. These findings highlight that curiosity has distinct faces and phases: I-type and D-type operate differently at different developmental time points. Fostering both types supports multiple aspects of science competence.