Which assessment method involves collecting information from multiple sources to gauge a child's development?

The assessment method that involves collecting information from multiple sources to gauge a child's development is triangulation of data. This approach is crucial in early childhood education because it provides a more comprehensive and accurate picture of a child's abilities and progress. By integrating information from various sources—including observations, parent and teacher reports, and standardized assessments—educators can understand not just the child's strengths and weaknesses but also the context in which the child is learning and developing. This multifaceted perspective helps in making informed decisions regarding instruction and intervention.

In contrast, single source assessment relies on only one type of data, which can lead to a limited understanding of a child's development. Self-assessment involves children evaluating their own progress but may not provide a complete assessment as it lacks input from caregivers or educators. Standardized testing focuses on evaluating children against a uniform standard but may not adequately capture the nuances of individual learning experiences or the varying contexts in which children grow and develop. Thus, triangulation of data is the most effective method for assessing overall development in early childhood settings.