Deep-level question: This is a method of instruction wherein questions are added to instruction that is otherwsie able to function without them. The questions invite students to draw links between mechanisms, components or processes. Comprehension monitoring questions, textbase questions (Kintsch ?), content-free self-explanation prompts (Chi et al., 2001), are not included.
When deep-level questions preceed the original instruction, they are a kind of advance organizers (Ausabel?). When they follow the original instruction, they are a kind of reflection questions. However, they can also be inserted in the midst of the original instruction.
When this independent variable is manipulated, the contrast is often with the original instruction, which is often the ecological control, that did not include the deep-level questions.