Table 2.

Distribution of survey responses in the cohort, by plant, n=56

Scale	Mean (SD)	Range	Cronbach α
Satisfaction scale	26.5 (9.0)	1–45	0.94
Work environment scale	31.7 (5.8)	1–50	0.90
Supervisor scale	19.6 (6.3)	2–30	0.93
Stress scale	11.0 (3.6)	1–20	0.80