Recording data

Translating research questions into data Problem Concepts Research question(s) Variables: Dependent Independent Mediating: inbetween, explains the relationship Moderator: affects the reationship Control: need to be constant Confounding: difficul to measure, need to be considered Planned analysing method: level of measurement Items in the questionnaire: understandable, fool-proof, cost-efficient Recorded data: from the questionnaire, from other data source (eg. notes, registers, background knowledge etc.), computed variables