Heard from my New Head teacher Network group that reviews of their provision by those who conduct these things are asking for more evidence that comment marking leads to action by the pupils that improves their work, and that this evidence needs to take the form of somewhat lengthy comments written in books by adults, followed by a response by the teacher.
The danger here is that we forget for whom these comments are written- the learners NOT those who scrutinise the work! There is a real danger here of knee jerk reactions that lead to other really effective strategies being abandoned and a disproportionate amount of time being spent jumping through this particular hoop so that a range of other perfectly effective strategies that prompt improvement that are not quite so obvious under work scrutiny but nevertheless have considerable impact where it counts are used less often and deemed less effective.
There is a video on feedback and other OFSTED myths at
Better still, go to my Resources section and download a free resource (REMARKABLE MARKING) that I have posted there on exactly the problem!