Happiness Questionnaire

Do you think these data collection techniques are valid? Why or Why not?
In my opinion, I don’t think that these data collection technique are valid because while I was answering the questions some times I couldn’t find the right choice that express my situation .Other thing is that I knew that the last choices were the once that if we choose them we will get a high grade of happiness and that’s will make the result not valid.

Would your results be different if you took the on-line questionnaire at a different time, on a different day? Why or why not?
Absolutely that my result would be different if I took the on-line questionnaire at a different time because in my case as a mother who is responsible of an active child and home, I found that it is difficult to balance between studying, doing my homework and taking care of my child especially these days. So, that is why my result would be different.

Are either or both of these data collection tools better suited to do with an individual or with lots of people? Why or why not?
I think that these data collection better suited to do with an individual because happiness is a personal mood or an emotion and different people have different moods.