I am designing a checkout workflow where the old IA has mocked up different screens for billing/shipping and payment.
I want to combine into one page like this (which I've abbreviated):
I've said there is an evidence base behind it but can't find anything conclusive either for same or different pages. There are more back end implications for the combo approach though, but these dont affect the UX
Q: can you direct me to evidence that looks at this exact scenario vs different pages for checkout.
bounty will be offered
I've blogged my thoughts based on your comments http://colmcqux.wordpress.com/single-vs-multi-step-checkout/
tx for all your help!