The questions are:
1) Have you felt an extreme anxiety?
2) Have you felt so down that nothing could cheer you up?
3) Have you felt calm and composed?
4) Have you felt downhearted and blue?
5) Have you been happy?
Each question offered six different answering categories: all the time, most of the time, often, sometimes, seldom and never. A total score is calculated based on the answers. To rate the answers to the positively formulated questions (3 and 5), the value scale applied was 5, 4, 3, 2, 1 and 0 respectively. The scale was in the opposite direction for the negatively formulated questions (1, 2 and 4). For each respondent, the values for all five questions were added together and then mulltiplied by 4. This resulted in a minimum total score of 0 and a maximum total score of 100 for each respondent. The lower the score, the poorer that person’s mental health was. A score of 60 or above then qualified a respondent as mentally healthy and below 60 as mentally unhealthy.