Final answer:
The primary developmental task for toddlers (ages 1-3) is Autonomy vs. Shame and Doubt, where toddlers assert their independence and develop confidence through exploring and interacting with their environment.
Step-by-step explanation:
The primary development task for toddlers (ages 1-3) as they explore their world is Autonomy vs. Shame and Doubt. Children at this stage are learning to master physical environments and begin making basic decisions. A canonical example is a toddler showing independence by choosing and attempting to dress in their own chosen clothes. This developmental stage is integral for building confidence and a sense of self-reliance.
If toddlers are not allowed the freedom to explore and act on their environment, they may develop feelings of inadequacy and doubt, potentially leading to issues such as low self-esteem and shame.