Fact: An IELTS Band 6 essay “uses cohesive devices effectively, but cohesion within and/or between sentences may be faulty or mechanical” while An IELTS Band 7 writing “uses a range of cohesive devices appropriately although there may be some under-/over-use.” For more info Useful links here : Cohesive Devices in detail Oxford Owl IELTS Advantage - The best source ever 310 viewsedited 11:28