Testing a Theoretical Model Based on Social Cognitive Theory for Media Influences on Suicidal Ideation: Results from a Panel Study

摘要

The influence of media representations of suicides on the subsequent increase of suicide rate has been researched for decades. Yet the underlying psychological mechanism of such media influences on individual's suicidality remains uncertain. Based on the conceptual framework of social cognitive theory, this article discusses the operationalization of media influences on suicidal ideation by using a psychometric approach. It then develops and tests a theoretical model to explain the mechanism of media influences on suicidal ideation. A two-wave panel study with a randomized population sample was carried out in the Hong Kong SAR, China with the results indicating that the proposed operationalization closely fit the data collected and empirically supported the theoretical model. Reciprocal associations between prior suicidal ideation and processes of media influences were also confirmed. The results also tested the factorial invariance across age groups and different pre-existing levels of suicidal ideation. This study reports the first individual-level finding on the theoretical relationship between media influences and suicidal ideation, as well as the first psychometrically validated operationalization of media influences on suicidal ideation.