Millisecond Forums

Hello,

I created a survey with text box elements and each text box is placed on separate survey page
I would like to know how long participant is "thinking" before  he or she start typing answer in check box, so I need to measure time between initial text box presentation on the screen and event when particpanat start typing in this text box.

I have tried to subtract survey page.elapsed time from survey page.latency, but it does not work as I expected ;(

Do you have any idea how can I measure time between text box presentation and start of typing in this text box?

Thanks for any responses :)