A comprehensive understanding of participants’ motives to complete web-based surveys has the potential to improve data quality. In this study we tested the construct validity of a scale developed to measure motivation to participate in webbased surveys. We expected that 7 different motivations observed in our previous study will form a 3-factor structure, as predicted by Self-Determination Theory. This web-based questionnaire study comprised 257 participants completing the Voluntary Participation in Online Studies Scale. Their responses to 21 items underwent a principal (...) component analysis and confi rmatory factor analysis. As we expected, three factors were identifi ed: intrinsic motivation, extrinsic motivation and amotivation. In line with Self-Determination Theory there are three distinct groups of motives among web-surveys participants with amotivation as an understudied motivational state. We discuss the results suggesting which types of motivation might lead to higher quality of data with an emphasis on possible negative effects of amotivation. (shrink)

Curiosity is a personality trait that is inversely related to depression and positively related to subjective wellbeing. However, the relationship between curiosity and these two outcomes is still unclear which hampers our general understanding of well-being. Based on research within positive psychology that showed character strengths such as curiosity can indirectly decrease depression, we hypothesized that the inverse relationship between curiosity and depression would be mediated by subjective well-being. Two hundred and fifty seven participants, between 18 and 64 years old (...) completed a web-based survey comprising: The Curiosity and Exploration Inventory - II, Center for Epidemiological Studies - Depression and the Steen Happiness Index. We found that well-being mediated the relationship between curiosity and depression. The results indicate that curious individuals tend to report higher levels of subjective well-being which, in turn, is associated with lower levels of depression. Our findings contribute to the understanding of positive results obtained from clinical samples that underwent positive psychotherapy of depression. (shrink)