My issue with these kinds of questions is how can we be sure how literally each person means "watching a movie"? How can a person possibly describe what is goin

My issue with these kinds of questions is how can we be sure how literally each person means "watching a movie"? How can a person possibly describe what is going on in their head? How can we tell if one person's crystal clear image is another person's vague shapes? I imagine there is a standard procedure in the research literature for telling the difference, but I don't think most lay-person discussions are nuanced enough.