In this article, we aim to shed light on a technique to study intra-individual variability that spans the time frame of seconds and minutes, i.e., micro-level development. This form of variability is omnipresent in behavioural development and processes of human experience, yet is often ignored in empirical studies, given a lack of proper analysis…

Caregivers must build a trusting, loving relationship before trying to toilet train any child. Before toilet training begins, myelinization, a neurological development necessary for controlling sphincter muscles, must be complete and toddlers must be able to sit easily for long periods. To help children recognize toilet needs, caregivers should…