Which of the following is a common method for assessing cognitive development in children?

Observing learning skills is a key method for assessing cognitive development in children because it allows caregivers and educators to evaluate how children process information, solve problems, and develop critical thinking abilities. By focusing on learning skills, such as language usage, ability to follow instructions, memory retention, and problem-solving strategies, professionals can gauge a child's cognitive growth in relation to developmental milestones.

This observational approach provides insight into a child's understanding of concepts and their ability to interact with their environment, which are critical aspects of cognitive development. This assessment method is dynamic and can be applied in various settings, making it an effective way to understand a child's progress and needs in learning.

In contrast, using physical tests primarily assesses motor skills or physical health rather than cognitive capabilities. Measuring height and weight is important for general health assessments but does not provide information about cognitive skills. Conducting personality assessments focuses on emotional and social aspects rather than directly evaluating cognitive processes and learning abilities.