Abstract

Collecting data is a crucial first step in statistical analysis, yet declining response rates in household surveys pose a significant challenge. In response, the Statistical Office of the Republic of Slovenia (SURS) implemented a respondent-centered strategy, utilizing profiling and age-based segmentation to tailor communication and data collection methods. This paper details the practical application of these strategies in the 2025 Survey on the Usage of Information and Communication Technologies, which for the first time expanded its scope to include the 75–89 age group.
The results of the second phase of the project indicate that age-tailored adjustments—such as simplified invitation letters with larger fonts, specialized interviewer training, and clearly highlighted participation options—were highly effective. Notably, the 75–89 age group achieved a higher response rate (66.5%) compared to the 16–74 age group (64.2%). Findings show that while the elderly are easier to contact, they are more likely to refuse due to health reasons or require significant interviewer support to navigate complex terminology. Furthermore, the study confirms a strong preference for personal (field or telephone) interviewing among older respondents, with 57% opting for this method compared to 36% in the younger group.
The paper concludes with recommendations for further optimization, including the further reduction of notification letters, the introduction of symbolic incentives, and possible questionnaire simplification. These findings provide a good framework for enhancing data quality and participation across all household surveys by aligning methodological approaches with respondent characteristics.