kyselydata

Kyselydata is data derived from systematically collected responses to surveys or questionnaires. In Finnish usage, the term typically refers to both the raw responses and the accompanying metadata that describe how the survey was conducted, who participated, and how the data were processed. Survey data can come from various modes, including online questionnaires, paper surveys, telephone interviews, and face-to-face interviews.

The data set usually contains respondent identifiers or pseudonyms, demographic information, response items, scales, and derived variables such as composite scores or weights. It may also include design variables like sampling strata, cluster identifiers, and survey weights necessary for population inference. Data are often stored in formats such as CSV, JSON, or statistical formats (SPSS, Stata, R) with accompanying codebooks and documentation.

Collection and processing involve questionnaire design, sampling, data collection protocols, data cleaning, quality checks, and handling missing data. Researchers may perform recoding, score calculations, and validation studies. Ethical considerations include informed consent, data minimization, anonymization or pseudonymization, and compliance with data protection regulations.

Kyselydata supports applications in market research, public opinion, epidemiology, social sciences, and policy assessment. It enables descriptive statistics, modeling, trend analysis, and cross-tabulation, but is subject to biases such as nonresponse, measurement error, and mode effects. Proper documentation and data governance are essential for reproducibility and responsible data sharing.