#003399"> Comment
Schenker (1990), railroad clerks, NE
40
6.9
Workshift median
Coultas (1990), white collar, NM
15
20.4
Workshift mean +/- SD
Mattson (1989);flight attendants
4
4.7
4 flights, mean +/- SD
Footnote(1) Adapted from Repace and Lowrey 1993 [Ex. 4-263]