This indicator is obtained from the following questions:
1. During the past four weeks, how often have you been especially tense?
2. During the past four weeks, how often have you felt so low that nothing could cheer you up?
3. During the past four weeks, how often have you felt disheartened and depressed?
4. During the past four weeks, how often have you felt calm and relaxed?
5. During the past four weeks, how often have you felt happy?
For the first three questions numerical values are assigned to each category, so that the scale is concentrated into 5 values, as This indicator is obtained from the following questions:
1. During the past four weeks, how often have you been especially tense?
2. During the past four weeks, how often have you felt so low that nothing could cheer you up?
3. During the past four weeks, how often have you felt calm and relaxed?
4. During the past four weeks, how often have you felt disheartened and depressed?
5. During the past four weeks, how often have you felt happy?
For the first three questions numerical values are assigned to each category, so that the scale is concentrated into 5 values, as This indicator is obtained from the following questions:
1. During the past four weeks, how often have you been especially tense?
This indicator is obtained from the following questions:

1. During the past four weeks, how often have you been especially tense?
2. During the past four weeks, how often have you felt so low that nothing could cheer you up?
3. During the past four weeks, how often have you felt disheartened and depressed?
4. During the past four weeks, how often have you felt calm and relaxed?
5. During the past four weeks, how often have you felt happy?

For the first three questions numerical values are assigned to each category, so that the scale is concentrated into 5 values, as This indicator is obtained from the following questions:

1. During the past four weeks, how often have you been especially tense?
2. During the past four weeks, how often have you felt so low that nothing could cheer you up?
3. During the past four weeks, how often have you felt calm and relaxed?
4. During the past four weeks, how often have you felt disheartened and depressed?
5. During the past four weeks, how often have you felt happy?

For the first three questions numerical values are assigned to each category, so that the scale is concentrated into 5 values, as follows:

1 corresponding to Always
3 corresponding to Most of the time
5 corresponding to Sometimes
7 corresponding to Almost never
9 corresponding to Never

For the last two questions this is reversed, to maintain coherence with the previous questions, so the following numerical values are assigned:

9 corresponding to Always
7 corresponding to Most of the time
5 corresponding to Sometimes
3 corresponding to Almost never
1 corresponding to Never

The evaluation measure is grouped into three levels: From 0 to 4 points (Low), from 5 to 7 points (Medium) and from 8 to 10 points (High).