On-Line measurement (case 443)

[tae]

I'm trying to do on-line measurements, but I haven't figured out how to do that.

I'd like to show a movie clip and ask people how much they enjoy the video clip over the time as the video plays.
I chose "on-line rating" for item type,
and I entered (p7) in the parameter(s) and set a 7 point scale.
And I also inserted a video clip in "backvideo" and added (w-2) in the parameter(s). (so, in the parameter(s), I entered "(p7) (w-2)")
But it doesn't work. anyway.

Could you let me know how to do it?