I am not sure what I am, a Mesomorph or an ectomorph. I've studied this and taken several tests and it seems to me like the tests are somewhat subjective.

Questions like, Does my body type tend to lean and muscular, carry fat easily, or tend toward being too skinny.

Well...uh, not sure really.

I would not have described myself as lean and muscular, but then again I wouldn't say I'm too skinny either. I've always had a little bottom cushion and tend carry weight in my arms, yet when I did gain weight I carried it mostly in my stomach. Some people tell me I'm too skinny, but I've also had people ask me if I'm a gymnast, so does that mean other people think I'm lean and muscular???

Is there another way to tell other than these subjective kinds of tests? If I posted pics could you guys be able to tell by looking? How important is knowing this info anyway?

How important is knowing this info anyway?
It's not important at all. All you need to know is whether you're eating enough calories to gain weight, maintain it, or lose it. Once you know that, you can determine what effect your training will have on body composition. Classification into an arbitrary body type only serves to compare you with others, which, most of the time, is completely worthless to know, as it has no (direct) bearing on your ability to make progress towards your desired aesthetic.

Thanks for your help. No worries then. :D

It's pseudoscience.

It's pseudoscience.

I wouldn't say its "pseudoscience", but rather, it is just a crude means of describing an individual's overall genetic tendencies toward fat/muscle distribution, etc. However, Chic's point is well-taken. Regardless of whether one is an ecto, meso, or endo, the same dietary and training principles apply -- the required adjustments to diet and training will be determined by the desired end-result.

I wouldn't say its "pseudoscience", but rather, it is just a crude means of describing an individual's overall genetic tendencies toward fat/muscle distribution, etc.

I would say it's not just a crude means of description, but indeed an outright unproductive one.

As an example, I have a long, narrow bone structure and a nerdy disposition. I have a big appetite and have been obese in the past. I have a natural affinity for weight training and am generally successful in gaining muscle and losing fat.

The above sentences each each add a little to the overall picture one might have of me. On the other hand, to say I am an "ecto-endo-mesomorph" provides no elucidation whatsoever.