The rise of smartphone surveys, coupled with technological advancements, provide new ways for measuring respondents' political attitudes. The use of open questions with requests for voice answers instead of text answers may simplify the answer process and provide nuanced information. So far, research comparing the measurement quality of text and…

This article explores the comparability of assessment tools under different format conditions. Prior studies have not considered the interaction of format and device on time to complete an assessment and have instead treated each of them separately with conflicting results. This study assesses, by linear regressions using web-based data, the…

Participation in web surveys via smartphones increased continuously in recent years. The reasons for this increase are a growing proportion of smartphone owners and an increase in mobile Internet access. However, research has shown that smartphone respondents are frequently distracted and/or multitasking, which might affect completion and response…