Which type of behavior must be assessed for evidence of an emotional behavior disturbance?

The correct choice is based on the understanding that emotional and behavioral disturbances are best identified through a comprehensive assessment of problem behaviors that occur across various settings. This holistic approach acknowledges that emotional disturbances can manifest in different environments, such as at home, in school, and during social interactions. Assessing behavior solely in one context or only focusing on academic performance may lead to an incomplete picture of a student's emotional state.

The emphasis on multiple settings is crucial because it allows educators and professionals to observe consistent patterns of behavior that may indicate a more profound emotional or behavioral issue. This inclusive assessment helps in formulating effective interventions tailored to the student's needs, ensuring that support is provided in all areas where the student experiences difficulties.

Utilizing data from various contexts captures the complexity of emotional disturbances, which may not be evident if one were to limit the observations to a single environment or time, such as during testing or only in social situations.