Imagine two students in your reading intervention class. Student A struggles to read the words accurately. Student B reads fluently but has no idea what the passage means. Both are struggling readers. They are struggling for completely different reasons. That's the foundation of the Simple View of Reading. Reading comprehension requires both: Word recognition (decoding) and Language comprehension If either one breaks down, reading comprehension suffers.This is why a one-size-fits-all intervention rarely works.Giving comprehension strategies to a student who can't decode won't solve the problem. Likewise, drilling phonics with a student who reads accurately but lacks vocabulary or background knowledge won't improve comprehension. The best intervention starts with understanding why the student is struggling. Lab Takeaway: The right intervention starts with the right diagnosis.