Reaction Time Test

Hi everybody.
I've been tearing my hair out trying to program a Reaction Time Test. I have been trying to search for topics that were like my program, but these programs were based on lights and on-off functions while mine is based on random number generator.
To explain a bit more in detail, I am creating a program that allows a test subject to choose 2 numbers to add or subtract (from 0-10). Then the program will randomly generate numbers between 0 and 10 and display it to the subject and the subject will need to react when the displayed number equals the answer in their head. On the programs side, when the number randomly generated equals the true answer the loop will start a timer and when the subject presses the button, the timer stops and displays the time.
Right now, I'm having a problem with the last sentence. I can't make heads or tails of how to get a timer started or getting it to properly output.
Any ideas?
Heres the most recent version of my vi
Solved!
Go to Solution.
Attachments:
ControlReactionTest.vi ‏15 KB

You can just ignore button reads until the time is right.
Here's a simple rewrite, see if it makes sense.
Notes:
Make sure that all controls have labels. You can hide the label on the front panel, but don't make it an empty string. It makes assigning event, etc. nearly impossible. All controls need a label for code readability.
Don't maximize the diagram to the screene. That's very annoying.
Don't trap event structures insude case structures.
Don't use right-to-left wiring (e.g. for the status)
Mind your representations. Look at all your red coercion dots. The numbers should be Integers of the same type.
Watch out for mechanical actions. Your start button is "switch until released" (like a car horn!), making detecting a press hit and miss, epsecially in the presence of long waits.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
ControlTest_MODCA.vi ‏12 KB

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Watch out for mechanical actions. Your start button is "switch until released" (like a car horn!), making detecting a press hit and miss, epsecially in the presence of long waits.
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