On Sun, Apr 20, 2008 at 11:43 PM, Jared M. Spool <[EMAIL PROTECTED]> wrote:
> All you know is that the eye tracker registered that they fixated on the > link and that they didn't click. > The notion that they didn't understand the link is one inference. > It's not the only inference. It may not be the right inference. > It is purely *your* interpretation that the user didn't understand it. > One way of double-checking the inferences is to ask the participant. What I've observed in eyetracking has been confirmed by participants enough that I know that the premises of eyetracking are true. Seems like you have had a different experience, so I'll be curious to hear what people have to say at UPA about it. (And you could've gotten there without the eye tracking data.) > This assumes that you knew there was an issue to begin with, or that the type of study allows you to follow up. Neither is always the case. In fact, in psychographic phenomena, it's pretty amazing what people can see > and deduce from the peripheral vision. There's a lot happening within 140 > degrees of the focal point. > And it's pretty amazing what is lost within the center gaze area, > especially with people who have field issues that are frequent in males over > 40, females over 50, and anyone suffering from optic neuritis or other > immune-deficiency-based symptoms. (In MS patients, for example, optic > neuritis frequently shows up in late teens, early 20s.) Sounds interesting, do you have a link? Is the device all they need to make the judgments necessary to provide good > design advice? Of course not. In nowhere here have I said that eyetracking was the only way to make judgments. It's just another tool. IMO, the main problems with eyetracking are 1) the multiple participant data (heatmaps) doesn't always make sense, 2) it is time consuming to use, and 3) the initial cost of the equipment is ridiculously high for the benefit that you get. It is not that the premises are wrong. On this point I think that we disagree, so let's just leave it there. Paul ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
