PDA

View Full Version : Help with randomizing trials


jnc79
October 30th, 2006, 02:52 PM
I'm am trying to set up an experiment with trials from 2 different groups. I have 80 total different stimuli pictures. I want 40 to go to one group and 40 to go to the other group. Then, within that, i want to further break down the stimuli so that there are 4 more groups. Then within that, i want each group to be broken down to lookin 1 way or another. Is there an easy way to counter balance what goes where?

Hisham
October 31st, 2006, 02:11 PM
This question is probably faster answered over the phone. Please call me at your convenience at 800.233.7871 or 310.548.9595.

Hisham.

jnc79
November 1st, 2006, 09:02 AM
Hisham,

I will call soon. I still have a lot of trials to enter. I'm in the central time zone, you?
Joslyn

Hisham
November 1st, 2006, 09:12 AM
Hi Joslyn,

I'm in California.

Hisham.

cknowca
November 3rd, 2006, 06:27 PM
When time permits, would someone mind posting some tips for counterbalancing items.
As a newbie, it would be useful to see what methods people use.