The provided dataset consists of 454 cases collected for the research of participation in non-probability online research panels. The dataset includes the following variables: Demographics variables The following demographic variables are included: participants' age, gender, level of education, and working status. Trust Scale The six-item General Trust Scale (Yamagishi, T., & Yamagishi, M., 1994) is used to examine the general level of trust of the respondents. Big Five Scale BFI-S (15 items) measuring the Big Five personality characteristics of the participants Online panel participation Online panel participation is measured with one categorical variable. Social media use Social media use is measured with one categorical variable exploring the duration of daily time spent on social media.