Are questionnaires reliable and valid?

Related questions

1. What are the three kinds of questions used in questionnaires?
2. What is a good questionnaire?
3. What is research questionnaire?
4. What are the four types of surveys?
5. Why questionnaire is a good method?
6. What is a questionnaire example?
7. Is a questionnaire qualitative or quantitative?
8. What are types of questionnaire?
9. How do you introduce yourself in a questionnaire?
10. What is structured questionnaire and unstructured questionnaire?

Tags

1. #social
2. #measuring
3. #countries
4. #questionnaires
5. #respectively
6. #developing
7. #instruments
8. #measure
9. #among
10. #accuracy
11. #health
12. #commonly
13. #known
14. #several
15. #researchers
16. #their
17. #carried
18. #studies
19. #importance
20. #documented
21. #consistency
22. #validity
23. #research
24. #science
25. #especially
26. #reliability