A field of applied statistics, survey methodology studies the sampling of individual units from a population and the associated survey data collection techniques, such as questionnaire construction and methods for improving the number and accuracy of responses to surveys. Statistical surveys are undertaken with a view towards making statistical inferences about the population being studied, and this depends strongly on the survey questions used. Polls about public opinion, public health surveys, market research surveys, government surveys and censuses are all examples of quantitative research that use contemporary survey methodology to answer questions about a population. Although censuses do not include a “sample”, they do include other aspects of survey methodology, like questionnaires, interviewers, and nonresponse follow-up techniques. Surveys provide important information for all kinds of public information and research fields, e.g., marketing research, psychology, health professionals and sociology.

Zettlr Review
  • Ease of use
  • Practicality
  • Affordability
  • Additional features

Zettlr Review: The Bottom Line

Zettlr is a Markdown editor that supports Zettelkasten functions, making it a valuable tool for storing and retaining knowledge. It allows you to build surveys, cite someone else’s research, and even download the application in multiple languages, so it’ll benefit the lives of writers and business owners worldwide. In short, if you’re looking for a Markdown editor that’s Zettelkasten compatible and 100 percent free, Zettlr is for you.


  • It offers Full Zettelkasten Support.
  • You can use it in multiple languages.
  • Citing references is easy.
  • Zettlr builds a table of contents automatically.
  • You can use Zettlr as a survey builder.


  • There’s no mobile app.
  • Editing graphs, tables, and images is tedious.