Sure, there are more than one way to skin a cat, but it's astonishing (and a bit disappointing) just how much bad advice and misconception there is on this thread.
Some basics:
More development = more overall contrast in the negative
Less development = less overall contrast in the negative
Shadow detail is controlled for the most part (90%) by EXPOSURE. Development has very little to do with it.
Now some details:
You can increase development by (in order of usual preference) 1. increasing development time 2. increasing developer activity (e.g. more concentrated developer or even a different developer) 3. increasing the frequency and intensity of agitation, or some logical combination of these.
You can reduce development by (again in the order of usual preference) 1. decreasing development time 2. decreasing developer activity (e.g. less-concentrated developer or even a different developer) 3. decreasing the frequency and intensity of agitation or some logical combination of these.
@Ratty
There is no "general rule" that you should dilute your developer and increase developing time to reduce overall negative contrast. It is one way of getting the result IF you get the right dilution and the right time. Note that it is a combination of numbers one and two above.
Developing negatives does not exist in a vacuum. There are lots of contrast controls available for printing. The advice to try a lower-contrast setting when printing is GOOD advice and very relevant. Comments like "This post has nothing to do with printing and everything to do with developing" demonstrate a fundamental misunderstanding of how things work. You may just be able to get the very best print possible by simply printing with a bit lower contrast.
However, if you are dead set on not trying printing adjustments, use one of the methods listed above to reduce the negative contrast. If you're having trouble recording shadow detail, then adjust your exposure accordingly.
Be aware also that adjusting agitation schemes can result in uneven development. That's the reason it's last on the preference list. First choice if your negs are too contrasty is simply to reduce development a bit. I'm frankly kind of surprised that that wasn't the first bit of advice you got in the thread. Michael R. knows what he's talking about, listen to him and disregard a lot of the other, more spurious, advice that appears in this thread.
And realize that you will have to do your own tests to find the exposure and development times that work best for you. No one, not the film manufacturer or the developer manufacturer or online development charts or anyone on this forum can take into account exactly what you do. Do your own due diligence.
You know, Kodak had it all pretty well straightened out years ago with the simple recommendation: "If your negatives are consistently too contrasty, reduce development time."
Doremus