Which of the following is an underlying assumption of DBI? Group of answer choices All students will respond to research-based interventions if they are implemented with fidelity. We should collect assessment data at three distinct periods: beginning of the year, middle of the year, and end of the year. Ongoing assessment data should reflect academic knowledge and skills that should remain static over time, so the data points can be reasonably compared. We can only hypothesize that a given instructional approach will work for an individual student; thus, we must test whether it is effective for that student