Methodology

We set some questions for our interview
The questions are : (for married adults)
1. Do you have children?
2. How many?
3. Do you want any (more) children?

(for non-married adults) 
1. Do you want to get married?
2. Do you want to have children and how many?

(for all)
1. Are you aware of the low population growth in Singapore? 
2. Why do you think Singaporeans are not giving birth enough?
3. Why do you think the Government is worried about it?
4. What do you think will happen to Singapore in the future if this continues?