[CST-2] HCI: Hick's Law & visual search

Alvin ah296@cam.ac.uk
Sun, 02 Jun 2002 02:34:05 +0100


Hick's law is based on gun aiming, and I think the way a person searching
for a letter in a string (scanning linearly) and targeting an item amongst
"similar" objects is somewhat different - it's unlikely that you'll be just
scanning the objects from left to right until you find what you're looking
for.

Alvin 

> I said:
> 
>> Hick's law applies to a field of objects, ie.  a 2d set of them.
>> The kN thingy is for a 1d list.
> 
> I'm sorry there's no basis for that at all, I've just made it up to fit
> what I think is true.
> 
> www.usabilityfirst.com says that Hick's law is to give you the time it
> takes to make a descion based on the number of possibilities.
> That might be closer to the truth, but I really don't know at all.
> 
> cya