A manual for writers of research papers, theses, and dissertations, 7th edition - Kate L. Turabian 2007

Draft your final conclusion - Restate your claim
Writing your final introduction and conclusion
Part I. Research and writing: from planning to production

If you have no better plan, build your conclusion around the elements of your introduction, in reverse order.

10.2.1 Restate your claim

Restate your claim early in your conclusion, more fully than in your introduction:

Ordinary people make decisions about risk not on a rational or quantifiable basis, but on the basis of at least six psychological factors that not only involve emotion but systematically draw on the power of visual imagination.

At this point, you're probably sure what your claim is, but even so, take this last chance to rephrase it to make it as specific and complete as you can.