Dave Ramsey's investing lesson is one of the weeks I get the most questions about. Can you really get 12% should you work with an adviser? How should the adviser be paid? Lots of questions. Here is a resource that I follow. I'm sharing it hear to help you make an informed decision on your investing strategy.
Exerpt below then follow link for more - Bogleheads® investment philosophy
The Bogleheads® follow a small number of simple investment principles that have been shown over time to produce risk-adjusted returns far greater than those achieved by the average investor. Many of these ideas are distilled from Nobel prize-winning financial economics research on topics like Modern Portfolio Theory and the Capital Asset Pricing Model. But they are very easy to understand and to implement, and they work. In fact, the basis of all of these principles is the idea that successful investing is not a complicated process, and can be accomplished by anyone with a small amount of effort.
These ideas come from the investing philosophy of Vanguard-founder Jack Bogle. They have been further distilled and explained in thousands of posts on the Bogleheads forums, starting with original contributors Taylor Larimore and Mel Lindauer. More advanced concepts were first widely introduced to the Bogleheads community by investing author Larry Swedroe, a tradition that has been carried on by Rick Ferri among many others.
This wiki article provides many details about how to apply these principles, given constraints, such as the specific tax-advantaged accounts an investor has available. For a video presentation of Bogleheads principles, refer to Video:Bogleheads® investment philosophy.
Dave Smith is part of the KCC finance staff and a Dave Ramsey Certified Coach.