Figure 1
Hypothesised mediation model.
Figure 2
Response to the open question about what supermarket cashier dislike on their job. Multiple answers were possible (N = 103).
Table 1
Descriptive Statistics and Zero-order Correlations between Study Variables.
| #items | Range | M | SD | Cronbach Alpha | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Emotional dissonance | 1 | 1–5 | 2.25 | 1.24 | n.a. | |||||||||
| 2. Sleep complaints | 1 | 1–5 | 2.08 | 1.00 | n.a. | .21* | ||||||||
| 3. Pain in arms and shoulders | 2 | 1–5 | 1.89 | 1.08 | .74 | .14 | .38*** | |||||||
| 4. Neck and back pain | 1 | 1–5 | 2.45 | 1.26 | n.a. | .27** | .40*** | .54*** | ||||||
| 5. Pain in hip, knee and feet | 2 | 1–5 | 1.81 | 1.07 | .80 | .03 | .19 | .36*** | .50*** | |||||
| 6. Age | 1 | n.a. | 41.17 | 13.67 | n.a. | –.21* | .04 | .24** | .11 | .31** | ||||
| 7. BMI | 1 | n.a. | 24.58 | 4.69 | n.a. | –.23* | .05 | .02 | .01 | .36*** | .38*** | |||
| 8. Percent employment | 1 | n.a. | 50.15 | 27.65 | n.a. | –.09 | .07 | .10 | .23* | .11 | .06 | –.02 | ||
| 9. No change of hand functiona | 1 | 0, 1 | 0.28 | 0.45 | n.a. | –.01 | .21* | .09 | .01 | .06 | –.01 | .06 | .10 | |
| 10. Information processing demand | 1 | 1–5 | 3.84 | 0.93 | n.a. | –.08 | –.20* | –.13 | –.14 | .08 | .19 | –.04 | .21* | .04 |
[i] Note. N = 102. The range refers to the response options, with higher values indicating high levels of the respective variable. a No change of hand function during cashing (0 = change of hand function, 1 = no change of hand function). N.a. = not appropriate.
* p < .05. ** p < .01. *** p < .001, two-tailed.
Figure 3
Mediation model in predicting current pain in the neck and back. Bold covariates significantly predict pain in the neck and back. Unstandardized regression coefficients (B) are estimated by use of PROCESS with 5000 bootstrap samples for bias corrected estimation of the confidence interval of indirect effect (Hayes, 2013). c = unstandardized regression coefficients (B) in prediction of pain in neck and back when the mediator sleep problems is not included in the regression model. c’ = unstandardized regression coefficients (B) in prediction of pain in neck and back when the mediator sleep problems is included in the regression model. SE = Standard error of estimation, CI = 95% confidence interval, R2 = explained variance, * p < .05. ** p < .01. *** p < .001, two-tailed.