Student feedback that visibly changed something
Collection is universal, closing the loop is rare.
Providers collect student feedback comprehensively and are assessed on what they did with it. The common position is a large body of survey data, a summary reported to a committee, and no traceable connection between any of it and any change.
The evidence that satisfies is a short chain: this feedback, this decision, this change, this subsequent result. Three documented instances are worth more than years of survey summaries, and they are what an assessor asks for.
Telling students what changed is the step that both improves the evidence and improves the next round of feedback. A cohort that has seen a response engages with the survey; one that has not learns it is ceremonial.
It is also worth recording what was raised and deliberately not changed, with the reason. That demonstrates judgement rather than neglect, and it answers the question that unaddressed feedback otherwise raises.
Response rates matter for a reason beyond representativeness: a very low rate is itself evidence about the relationship between the provider and its students, and it is frequently reported without comment.
There is a further use for feedback that providers overlook, which is comparing what students say against what the course documentation claims. Where students consistently report something the documentation says does not happen, that discrepancy is a finding the institution can make about itself before anybody else does.