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	Pilot-testad enkät	Longitudinal Survey
Ämnesområde	Surveymetodik	Surveymetodik
Familj	Process / pipeline	Process / pipeline
Ursprungsår	Widely formalised from the 1970s-1980s	1940s (panel survey tradition); longitudinal designs codified mid-20th century
Upphovsperson	Systematic practice codified by Jean M. Converse and Stanley Presser	Established tradition; formalized in social science by Paul Lazarsfeld and colleagues (1940s panel studies)
Typ	Survey design and validation procedure	Quantitative / mixed-methods survey design
Ursprungskälla	Converse, J. M., & Presser, S. (1986). Survey Questions: Handcrafting the Standardized Questionnaire. Sage. ISBN: 978-0803925557	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922292
Alias	pre-tested survey, survey pre-testing, questionnaire pilot study, survey field test	panel survey, repeated-measures survey, longitudinal panel study, wave survey
Närliggande	6	3
Sammanfattning	A pilot-tested survey is a structured questionnaire that has been administered to a small, representative sample before the main data-collection phase. The purpose is to detect problems with wording, response options, skip logic, or timing, allowing the researcher to refine the instrument before it reaches the full sample. Pilot testing is not a separate research design; it is a quality-assurance step embedded within survey methodology that substantially reduces measurement error.	A longitudinal survey collects structured questionnaire data from the same individuals or units at two or more distinct points in time. By tracking the same respondents across waves, researchers can distinguish genuine change from stable individual differences, establish temporal ordering between variables, and model trajectories of attitudes, behaviors, or outcomes in ways that a single cross-sectional snapshot cannot support.