prosocial behavior covid-19
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prosocial behavior of vietnamese in covid-19
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A web-based respondent network sampling method was employed. We first created a network of 11 initial respondents. To ensure representativeness of the sample, the initial respondents included people of different occupations (teachers, admins, businessmen, healthcare professionals) and different geographical locations (Hanoi, Hue, Da Nang, Ho Chi Minh city). The initial respondents then sent the survey among their networks. This web-based respondent network allows the study to reach a diverse sample faster and more efficiently (Wejnert, Heckathorn, & Research, 2008). Participants in this study were Vietnamese, aged 16 and above. Participants must live in Vietnam during the pandemic period and had Internet access to answer the online survey. The final sample size included 292 participants. Prosocial behavior: We used the COVID-19 Prosocial Experience scale by Alvis, Shook, and Oosterhoff (2020) to measure prosocial behaviors. The scale was developed to measure adolescents’ engagement in prosocial behaviors during the COVID-19 pandemic. In this study, the help-receiving behaviors were omitted, leaving the scale with 8 items on engagement in prosocial behaviors. Examples of prosocial behaviors surveyed were giving money, buying food and necessities for people in quarantine, helping with childcare, etc. Participants rated how often they helped their family, friends, neighbors, and strangers during the pandemic on a 5-point scale (1-never to 5-always). The total score ranged from 0 to 40; a higher score implied higher prosocial behavior. The scale showed good reliability in this study (Cronbach alpha = 0.89). We applied the cutoff point method to classify prosocial behavior: respondents with a score of 20 or higher were classified as high prosocial behaviors; while a score lower than 20 was classified as low prosocial behaviors. Institutional trust: Institutional trust, i.e., trust in government’s response towards COVID-19 pandemic, was measured by 8 items, including 3 items adapted from Han et al. (2020) and 5 items adapted from Sibley et al. (2020). The total score ranged from 0 to 40; a higher score implied higher trust. The scale showed good reliability: Cronbach alpha = 0.788. In this study, we defined high institutional trust as having trust score ≥ 20, and low institutional trust as having trust score < 20.