Question

Dr. goldberg introduces irrelevant stimuli into a task and records how well children attend to its central elements. dr. goldberg is probably studying ___

Answer 1

I believe the answer is: selectivity of attention.

selectivity of attention refers to the process when individuals decided to focus majority of our attention to a certain thing.
In our life,selectivity of attention would often make us unaware of everything that happen outside the scope of our focus.