Infants attend daycare at an early age, which raises questions about children's sensitivity to the childcare environment and the role of different temperamental traits in their development in the early years. In a two-year longitudinal study with parent- and caregiver-reported data for Dutch children at the age of 1 and 2 years (120 children from…

In the current study, we examined the developmental course of the perception of non-native tonal contrast. We tested 4, 6 and 12-month-old Dutch infants on their discrimination of Chinese low-rising tone and low-dipping tone using the visual fixation paradigm. The infants were tested in two conditions that differed in terms of degree of…

Current individual-based, process-oriented approaches (dynamic systems theory and the microgenetic perspective) have led to an increase of variability-centred studies in the literature. The aim of this article is to propose a technique that incorporates variability in the analysis of the "shape" of developmental change. This approach is…