Rayner et al. (2012)- 'Silent reading tests indicate a child's independent reading level relative to their grade and age, but they do not provide information about the development of underlying skills that contribute to that overall reading score....'
...This is because an overall reading comprehension score can reflect the summed outcome of any number of patterns of strength or weaknesses in component skills. Most children who score poorly on reading comprehension do so because they struggle with isolated word recognition...'
'...Despite ample evidence that supports a close connection between efficient word recognition and text comprehension, our experience suggests that teachers tend to respond to low comprehension scores by intensifying their teaching of metacognitive strategies.'
In other words, when a child does poorly on a reading comprehension test first check their reading fluency rather than teaching them more...comprehension. https://www.thereadingape.com/single-post/2020/07/12/is-reading-comprehension-an-actual-thing