Questionnaire Programming

The first rule of Questionnaire Programming is to not start programming your survey before you have questionniare already. If you do not have a questionnaire, go to Questionnaire_Design

Population Frame

First you need a population frame to sample from.

Stratification

To ensure a representative sample you can use stratification. An typical variable to stratify on is gender. When you stratify on gender you guarantee that your sample has the same ratio of women as the population frame you are sampling from.

Randomzie in Stata

All code work you produce should be reproducible. Any code that includes randomization needs version, seed and sort to be reproducible. See reproducible randomization in Stata for details.