I could not find info on the given model number are you sure it is not LEB356GT1BB which follows
Replacement parts for General Electric LEB356GT1BB Electric range | AppliancePartsPros.com

Only way to tell if it is thee element is to remove it from the unit and check it with a meter, they are usually around 20 ohms.

Be sure to unplug the unit when doing this as even with the control at Off many units still have power going to one side of the element.

You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.
4. When you start always short the meter leads together. This will tell you that the meter is working and if there is any 0 offset.

There is a good STICKY at the start of this forum about it's use.

Unplug the unit.
Undo the screw/s holding the element to tha back of the oven.
Gently pull the element into the oven.
Undo one of the wires going to the element.
They are usually push on connectors, do not pull on the wire as you may pull it out of the female connector.
Sometimes you have to push them off using a screwdriver.
Then measure across the element for continuity.

It is a good idea to clip something (clothespin etc.) to the wire so that it does not disappear into the back of the oven.

You could read the voltage at the board but this is a live test and it is best to avoid messing with 240 volts as much as possible.

So if the lement is OK and the wires from the board to the element are OK then you can assume it is the board.

Note: Some units have a thermal cut-off in the element circuit but I could not find one in your unit's parts.

Not sure I understand what you are doing.

What you want to measure is across the element not the wires.

The only reason I said to disconnect one side of the element when you are measuring across it is that it prevents you from reading a parallel/alternate circuit path. Then you know for sure that it is only the element you are checking.