Table 2 The values of CVR, CVI, and ITC of remained questions
Type | Code | Factor | Questions | CVR | CVI | ITCa |
|---|---|---|---|---|---|---|
Observational questions (completed by expert) | Q1 | Job | Which parts of the person’s body are able to move while working? | 0.630 | 0.909 | 0.417 |
Q2 | Administrative | How efficient is heat control measures, such as air conditioning and insulation, in the person’s workplace? | 1.000 | 0.932 | 0.907 | |
Q3 | Clothing | What material are the person’s work clothes made of? | 0.630 | 0.932 | 0.522 | |
Q4 | Clothing | How thick are the person’s work clothes? | 0.630 | 0.841 | 0.654 | |
Q5 | Clothing | Which one of the following items defines the person’s work clothes? | 0.820 | 0.909 | 0.578 | |
Q6 | Clothing | Which of the following protective equipment is used by the person while working? | 1.000 | 0.977 | 0.576 | |
Descriptive questions (completed by worker) | Q7 | Administrative | How many days have passed since you were not present in a warm environment for a period of more than 3 days? | 0.630 | 0.841 | 0.485 |
Q8 | Administrative | How many hours on average are you exposed to heat on a workday? | 1.000 | 0.977 | 0.753 | |
Q9 | Administrative | How many minutes on average do you rest in a cool environment in every 2 h working in a warm environment? | 1.000 | 0.955 | 0.696 | |
Q10 | Administrative | In which of the following environments do you work mostly? | 0.820 | 0.841 | 0.537 | |
Perceptional questions (completed by worker) | Q11 | Environment | How do you feel about the air temperature in your workplace? | 0.820 | 0.932 | 0.893 |
Q12 | Environment | How do you feel about the air humidity in your workplace? | 0.820 | 0.886 | 0.457 | |
Q13 | Environment | How do you feel about the thermal radiation on your skin in your workplace? | 0.630 | 0.886 | 0.733 | |
Q14 | Environment | How do you feel about the temperature during hand or foot contact with the equipment in your workplace? | 0.630 | 0.886 | 0.640 | |
Q15 | Environment | How do you feel about the air movement in your workplace? | 0.630 | 0.955 | 0.508 | |
Q16 | Job | What is the intensity of your physical activity while working? | 1.000 | 0.955 | 0.548 |