Which statement regarding the assessment of executive functioning is true?

The statement that informal assessment may be the most effective regarding the assessment of executive functioning is correct because executive functioning encompasses a variety of cognitive processes, including planning, organization, and self-regulation, which can often be best observed in real-life contexts. Informal assessments, such as observations, interviews, and tasks that simulate everyday challenges, allow the evaluator to gather rich qualitative data about an individual's functioning in natural settings. These methods can provide insights that standardized tests might not capture, such as the impact of environment or stress on functioning.

Additionally, informal assessments can be tailored to the individual’s specific circumstances, making them a flexible and often insightful approach. This kind of assessment can complement formal methods by providing a fuller picture of the individual's abilities and challenges, leading to more effective intervention strategies. Therefore, acknowledging the strengths of informal assessment in evaluating executive functioning aligns with contemporary practices in the field.