Elements may be checked by setting the meter for ohm's. Then take the probes and place one on each element connection. It should read between 11 -16 if the element is O.K.. Then go from each element connection to the element housing and there should be nothing between them. If you wish you can also extract the element and do a physical exam of it. You can also check with an amp meter while it is under power.
The thermostats can be checked best with an amp meter also. There is no easy way to check with an ohm meter, unless hj can tell me one. You would need to trip the stat with a heat source applied to the back of it and then check it.