Tracing a series of numbers

[Mariana Silva]

Hi,

I have an experiment where the participants have to click in boxes with
numbers in ascending numerical order as quickly as they can. I need to make
sure that when they click on the right number this will change colour.
Also, every subsequent correct click will turn the respective number into a
different colour. It's a trace feedback. Any ideas on how I can do this?

Thanks in advance

Mariana



Mariana Matos da Silva
School of Human Sciences
Department of Psychology
University of Surrey
Guildford, Surrey GU2 7XH
UK

Tel: +44 (0) 1483 686883
Fax:+44 (0) 1483 689553