Nejc Berzelak

National Institute of Public Health Slovenia

This is a technical report on response quality indicators collected with paradata in a typical websurvey, which was conducted in 2020 in Slovenia with 4,000 target complete responses and inIsrael with 1,200 target complete responses. Question topics included Internet use, onlineshopping, and online privacy. Respondents were randomly assigned to fiv...

Introduction The paper presents the findings of the first large-scale survey on post-mortem organ donation among the general Slovenian population. It focuses on the reported donation willingness, the barriers to joining the register of organ donors and the position towards consent to donate organs of deceased relatives. Methods A face-to-face surv...

The article presents aim, approach and results of the self-assessment online survey developed within the Interreg Europe ITHACA project. ITHACA’s focus is on smart health and care innovation that can support active and healthy living, boost economic growth and improve the efficiency of the health and care sector. In this sphere, it addresses region...

This paper elaborates upon differences in socially desirable responding as being the result of mode effects between web, telephone, and face-to-face survey modes. Social desirability is one of the main threats to comparability of data between different modes. The paper conceptualises socially desirable responding as a specific type of mode effect,...

This document describes in full details the weighting procedures for the ESS Round 7. The document is a result of a repeating exercise for all weighting steps using very formal technical approach for weighting that was independently conducted by another researcher (Nejc Berzelak) following the procedures established for previous calculations of wei...

The increased interest in mountain biking on trails in natural areas necessitates the systematic management of mountain biking. In Slovenia, access to forest singletracks and signposted mountain trails, which are highly preferred by mountain bikers, is generally not legal. There is also a lack of mountain biking management and infrastructure at the...

Lower data collection costs make web surveys a promising alternative to conventional face-to-face and telephone surveys. A transition to the new mode has already been widely initiated in commercial research, but web surveys remains limited in academic and official research projects that typically require probability samples and high response rates....

Due to low costs, speed, simplicity, interviewer assistance, and easy monitoring telephone interviewing had been the preferred mode of many survey practitioners for decades. However, technological developments related to information society, in particular the increasing rate of mobile-only individuals and households, are rapidly changing the survey...

Background: This paper discusses depressive symptoms among men and women in Slovenia and their relationship to various socioeconomic factors, and education in particular. Methods: The analysis is based on the European Social Survey Round 3 (ESS-3) from 2006, for the Slovene population (n = 1,282). Depressive symptoms, as a dependent variable, are m...

In recent years, mobile phones have become an increasingly important component in survey data collection. This holds true for self-administered questionnaires and particularly for interview surveys, where mobile phones enforce the combination with other survey modes. However, whether to include mobile phones in a particular survey design depends on...