Instruments
- Demographic Questionnaire
- Logbooks (2)
- 28-day record of sleep/wake patterns, work hours, difficulties remaining alert on duty and errors
Notes:
Can note that logbooks also used to collect data about errors, the findings of which have been published.
Previous Slide Contents Next Slide ![Next Slide](https://webarchive.library.unt.edu/eot2008/20081105145632im_/http://www.ahrq.gov/images/arrow_rt.gif)