| | 10 a.m. | 11 a.m. | 12 noon | 2 p.m. | 3 p.m. | Results |
| Cognitive problems | −.03 (.13) | −.03 (.18) | −.27 (.2) | −.11 (.17) | −.41 (.22) | Gum: F(1, 23) = 1.03, = .32, = .04 Time*: F(2.68, 61.61) = 3.95, P = .02, = .15 Gum × time: F(4, 92) = .41, P = .8, = .02 |
| Job stress | 0 (.25) | −.07 (.25) | −.17 (.17) | −.32 (.21) | −.24 (.18) | Gum: F(1, 24) = .67, P = .42, = .03 Time: F(2.82, 67.71) = 3.46, = .01, = .13 Gum × time: F(2.01, 48.3) = .27, = .77, = .01 |
| Fatigue | −.16 (.32) | −.24 (.36) | −.25 (.39) | −.9 (.4) | −.81 (.45) | Gum: F(1, 25) = 2.99, P = .1, = .11 Time: F(2.08, 51.99) = 1.05, P = .36, = .04 Gum × time: F(4, 100) = .86, P = .49, = .03 |
| Anxiety | 0 (.21) | 0 (.16) | −.4 (.17) | −.07 (.1) | .07 (.16) | Gum: F(1, 26) = .19, P = .67, = .007 Time*: F(4, 104) = 2.49, P = .047, = .09 Gum × time: F(2.74, 71.31) = .1.32, P = .28, = .05 |
| Depression | .13 (.14) | .18 (.13) | −.03 (.14) | .07 (.09) | .14 (.15) | Gum: F(1, 22) = .01, = .91, = .001 Time: F(2.2, 47.9) = 2.04, = .14, = .09 Gum × time: F(4, 88) = 1.51, P = .21, = 06 |
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