The influence of Facebook in social life keeps constantly growing. Recently, the communication of information has been vital to the success of the Tunisian revolution, and Facebook was its main "catalyst." This study examines the key reasons that explain Facebook's contribution to this historical event, as perceived by Tunisian Internet users. To do so, we launched this study 5 days after the fall of the regime using an online questionnaire in which participants (N=333) first rated the importance of Facebook in the Tunisian revolution and then explained the reasons for their ratings. A cluster analysis based on the Euclidean distance between the most frequent words in the participants' text corpus (6,640 words), revealed three main clusters that we interpret as follows: 1: Facebook political function, 2: Facebook informational function, and 3: Facebook media platform function. It is likely that these factors reflect the dynamic of Tunisian cyberspace and the Tunisian Internet users' collective consciousness during the revolution.
The aim of the present study was to provide a list of psychological variables likely to explain cannabis abuse among adolescents and young adults based on the following psychological risk factors: anxiety, depression, difficulty in describing feelings, difficulty in identifying feelings, and external oriented thought. The analysis was based on the multiple logistic regression technique; the step-wise procedure showed that only anxiety, depression, and difficulty in describing feelings were retained in the final model. Following this, additive versus interactive models under different assumptions between the three independent variables were also assessed. The key findings of this study are twofold: (a) anxiety was revealed to be the primary risk factor for cannabis abuse and (b) no interaction between the aforementioned factors proved to be significantly informative in explaining high risk cannabis abuse. Findings were discussed in the context of the current knowledge of the relationship between anxious and depressive symptoms and higher risk of substance abuse and dependence.
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