Although also the predicted gamete phenotypes of a double heterozygote; in this context, it is the amount of times I wanted to review the content material I had chosen to use for my primary MCAT studying. I gave myself four months to study and, at the outset, I set what I perceived to be a rigorous but realistic goal: to go over the content material four times. Or, on average, covering all the material in one month, then starting over again. Granted, if you have less time, it is going to be tough to go over everything four times in, let's say, four weeks. Moreover, if the content material you are using is some telephone-sized tome with 8pt font - it's going to be tough to make it through it all. There was no free study guide like this one, so I used Kaplan's review books. They were manageable and thin. The only point of this ``ratio'' was to force myself to go over the material more than once. Perhaps the following guidelines may help:
6 weeks to study: review the content material 1 to 2 times if possible.
Ultimately though, you need to decide (1) What am I going to use to study?, (2) How many times can I rigorously and realistically go through all this information? Once the decision is made, stick to it - no exceptions.