Answer:
Behavioral intervention study
Explanation:
The type of study that best describes the experiment in which a subject performs a cognitive task while in a brain scanner (e.g., fMRI), and researchers measure indirect changes in activity in specific regions of the brain is behavioral intervention study.
According to Vygotsky, the level at which a child cannot fully perform a task independently, but can do so with the assistance of someone more competent would be the zone of proximal development or ZPD. It would refer to the difference of a learner's capability of performing a task without any assistance and one with assistance. <span />
