Final answer:
Maturational theory is associated with the biological perspective, proposing that development follows a natural plan governed by biological processes.
Step-by-step explanation:
The Maturational theory is an approach that falls under the biological perspective. This theory suggests that development occurs according to a specific and natural plan within the body. According to this perspective, biological processes drive development, and the sequence of growth and change is relatively predetermined and universal to all individuals. Arnold Gesell was a prominent proponent of maturational theory, emphasizing that development is guided by genetics and biology. The theory aligns with the view that nature more so than nurture primarily influences development, especially during the early critical periods of a child's life.