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questionnaire-design-guide
Questionnaire and survey design with Likert scales and coding
skills/analysis/wrangling/questionnaire-design-guide/SKILL.md
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# Questionnaire Design Guide
Design valid and reliable survey instruments with proper question types, Likert scale construction, response coding, and data preparation for analysis.
## Survey Design Principles
### Question Types
| Type | Example | Best For | Analysis |
|------|---------|----------|----------|
| **Likert scale** | "Rate your agreement: 1-5" | Attitudes, perceptions | Ordinal/interval statistics |
| **Multiple choice** | "Select your field" | Demographics, categories | Frequencies, chi-square |
| **Ranking** | "Rank these 5 options" | Preferences, priorities | Rank correlations |
| **Open-ended** | "Describe your experience" | Exploratory, rich data | Qualitative coding |