Back in September
a PSC In The News reference
"Putting the “Long” into Longitudinal: UX Lessons from Survey Research" - UXmatters. 08/08/2011.
This piece looks at Jennifer Barber's research method of using weekly 5-minute web or phone questionnaires—with a mixture of standard and variable questions each week—as a model for getting high levels of information with less resistance to provision in user experience surveys.
Jennifer S. Barber