Is there any conclusive research about having multiple form fields in one row in specific cases? Research about filling in speed (or preferably on conversion rate).
I am specifically thinking of the person's name, where it's necessary (due to the underlying system) to capture the data across 3 fields.
Putting them all one one line (on larger screens) visually shows the link between the data, and takes less space.
But all the studies I've seen show scanning vertically to be faster.
Is there anything conclusive?