Final answer:
The movement that led to the foundation of modern Early Childhood Education is the Progressive Education Movement, influenced by broader Progressive Era reforms including settlement houses and the establishment of the Children's Bureau.
Step-by-step explanation:
The movement that grew out of the child study movement and significantly contributed to the field of Early Childhood Education is known as the Progressive Education Movement. This movement, led by figures such as Patty Smith Hill and Lucy Sprague Mitchell, focused on developing educational practices that emphasized hands-on, experiential learning, and the development of the whole child. It laid the groundwork for many modern educational practices and was influenced by the larger Progressive Era reforms that sought to improve societal conditions, including those for children.
During the Progressive Era, educators and reformers aimed at reforming the education system to make it more responsive to the needs of society. The movement saw the establishment of settlement houses, the creation of the Children's Bureau, and strides forward in women's suffrage and labor laws. Allied professionals such as Jane Addams and Lillian Wald played significant roles in these broader societal changes and influenced the educational landscape—helping to shape what would become a formalized system of early childhood education.