Which item is least likely to be useful in locating a missing child?

A psychological assessment may provide insights into a child's behavior and emotional state, but it is not a direct tool for locating a missing child. The other items listed are more immediately practical and tangible in the context of a search.

A drawing made by the child could be useful as a means to connect with the child emotionally or geographically, as it may contain familiar elements or places that can aid in the search. A school identification card may provide vital information such as the child's full name, date of birth, and associated school, which can help authorities in tracking down their last known location. A recent photograph is crucial as it provides law enforcement and the public with a clear and accurate visual reference, which is essential in identifying the child during searches.

In contrast, the psychological assessment, while possibly valuable for understanding the child’s mindset or potential risks, does not contribute directly to the immediate task of locating the child. Its focus is more on behavioral patterns rather than logistical aspects of a search, making it less relevant in this context.