To improve ecological understanding, collect infection data

The feasibility of using cellular phones to collect ecological momentary assessment data: application to alcohol consumption.

The limitations of paper-and-pencil self-monitoring (PM) are leading to the use of more sophisticated techniques. PM was compared with cellular phone monitoring (CM) to collect ecological momentary assessment data on alcohol use. Twenty social drinkers were randomly assigned to the 2 groups, and their drinking was monitored for 14 days. PM participants recorded data on cards. CM participants ca...

Why Collect Retrospective Data ?

Using Personal Digital Assistants to Collect Survey Data

New technologies for computer-assisted survey information collection (CASIC) are being developed as graphical user interfaces, mouse/pen-based computing, handwriting recognition, hand-held computers, and use of the Interact become more widespread (Connett, Mockovak and Uglow, 1994; Gilluly, 1994; Nichols and Apple, 1994; Shanks, 1994; Forster and Snow, 1995; Hansen, 1996). The utility of these ...

How to Collect High-Quality Data Cost-Effectively

TRAC - IT uses cell phones to collect travel behavior data

egies are designed to motivate people to modify their travel choices, particularly the drive-alone preference. TDM strategies and policies seek to increase transportation system efficiency and achieve specific objectives, such as reduced traffic congestion, road and parking cost savings, increased safety, improved mobility for non-drivers, energy conservation, and pollution emission reductions....