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Methods compass
From research question to the right method
This guide is currently available in German only.
Wie viele? Wie verbreitet? Wie stark?
quantitativ
Standardisierte Befragung (Online-Fragebogen)
- Stichprobe: ab ca. 100, je nach Analyse (Stichprobenrechner)
- Auswertung: deskriptive Statistik, Gruppenvergleiche
- Aufwand: mittel; Fragebogen gut testen
Learn more
- Quantitative vs qualitativeQuantitative research measures and tests hypotheses with numbers; qualitative research explores meanings with words. Your research question decides.
- Mixed methods researchMixed methods research combines quantitative and qualitative data in one study. The three core designs: convergent, explanatory and exploratory sequential.
- OperationalizationOperationalization turns an abstract concept into measurable variables: define the concept, identify dimensions, choose indicators and a measurement method.
- Questionnaire designA good questionnaire starts from your research question, uses validated scales, neutral wording and a logical order, and is pilot tested before launch.
- Likert scaleA Likert scale measures attitudes with several agreement items, usually rated from 1 (strongly disagree) to 5 or 7 (strongly agree), combined into one score.
- Sampling methodsProbability sampling gives everyone a known chance of selection and supports generalization; non-probability sampling is quicker but limits it.
