Table 1. Summary table of measures and descriptive figures (M, SD) across sub-samples (1, 2, 3) concerning seven sub-scales.
| Scale | α-coefficients | M/SD | Scale-range* | No. of items | Reference and example items | ||||
|---|---|---|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 | |||
| WI | 0.90 | 0.89 | 0.88 | 3.85/1.02 | 3.68/1.00 | 3.36/1.12 | 1–5/La | 5 | “In the last five years ever more work has to be completed by fewer and fewer employees”4) |
| IJP | 0.85 | 0.84 | 0.86 | 3.53/0.92 | 3.68/0.86 | 3.15/0.98 | 1–5/L | 5 | “In the last five years one increasingly has to check independently whether the work goals have been reached”4) |
| ICP | 0.76 | 0.78 | 0.76 | 3.42/0.95 | 3.52/0.89 | 3.04/0.99 | 1–5/L | 3 | “In the last five years one is increasingly required to maintain one’s attractiveness for the job market, e.g., through advanced education, networking”4) |
| LD | 0.93 | 0.94 | 0.93 | 4.11/0.82 | 3.79/0.89 | 3.09/1.02 | 1–5/L | 6 | “In the last five years one has to update one’s knowledge level more frequently”4) |
| SOC | 0.75 | 0.76 | 0.79 | 3.30/0.48 | 3.37/0.47 | 3.44/0.50 | 1–7/L | 12 | “I concentrate all my energy on a “few things” (selecting); “When I can’t do something important at work the way I did before, I look for a new goal” (loss-based selection); “At work, I keep working on what I have planned until I succeed” (optimizing), “When something at work isn’t working as well as it used to, I ask others for advice” (compensating)30) |
| TP | 0.79 | 0.82 | 0.79 | 3.57/0.68 | 3.55/0.75 | 3.61/0.77 | 1–5/Fb | 4 | “I was able to plan my work so that I finished it on time”43) |
| OCB | 0.76 | 0.74 | 0.76 | 3.74/0.54 | 3.55/0.55 | 3.50/0.60 | 1–5/F | 8 | “Willingly give your time to help others who have work-related problems” |
1: upper white-collar workers; 2: lower white-collar workers; 3: blue-collar workers. *Higher score indicates higher amount/level of the given construct. a: Likert-type scale; b: frequency-based scale. WI: work intensification; IJP: intensified job-related planning and decision-making demands; ICP: career planning and decision-making demands; LD: intensified learning demands; SOC: selecting-optimizing-compensating strategies; TP: task performance; OCB: organizational citizenship behavior.