Despite the enormous popularity of Online Social Networking sites (OSNs; e.g., Facebook and Myspace), little research in psychology has been done on them. Two studies examining how personality is reflected in OSNs revealed several connections between the Big Five personality traits and self-reported Facebook-related behaviors and observable profile information. For example, extraversion predicted not only frequency of Facebook usage (Study 1), but also engagement in the site, with extraverts (vs. introverts) showing traces of higher levels of Facebook activity (Study 2). As in offline contexts, extraverts seek out virtual social engagement, which leaves behind a behavioral residue in the form of friends lists and picture postings. Results suggest that, rather than escaping from or compensating for their offline personality, OSN users appear to extend their offline personalities into the domains of OSNs.

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The social compensation hypothesis states that the internet primarily benefits individuals who feel uncomfortable communicating face-to-face. In the current research, we tested whether individuals higher in social anxiety use the internet as a compensatory social medium, and whether such use is associated with greater well-being. In Study 1, individuals higher in social anxiety reported greater feelings of comfort and self-disclosure when socializing online than less socially anxious individuals, but reported less self-disclosure when communicating face-to-face. However, in Study 2, social anxiety was associated with lower quality of life and higher depression most strongly for individuals who communicated frequently online. Our results suggest that, whereas social anxiety may be associated with using the internet as an alternative to face-to-face communication, such a strategy may result in poorer well-being.

a b s t r a c tPrior research has documented negative, concurrent relations between internalizing symptomatology and academic achievement among adolescents. The present study provided the first rigorous, longitudinal examination of the bi-directional, prospective relations between adolescent internalizing symptomatology and academic achievement. One hundred and thirty adolescents reported depression and anxiety annually from 6th through 10th grades, and GPA records were obtained annually from schools. Results showed that (a) high depression and anxiety at the beginning of a school year predicted lower GPA during that school year, and (b) low GPA in any school year predicted higher depression and anxiety at the beginning of the following school year. These findings underscore the tight link between adolescent internalizing symptomatology and academic achievement.

Using longitudinal and experience sampling designs, the consistency and composition, and personality and motivational predictors, of the desired affective state are explored. Findings indicate that, while the desired affect is relatively malleable throughout one semester, it is relatively stable throughout 1 week. Personality and motivations/goals were related to the content of the desired affective state. Extraversion, neuroticism, agreeableness, and conscientiousness were related to the content of the desired affective state. In addition, higher-order goals predicted the content of the desired affective state. Our results suggest that the content of the desired affective state may be largely dependent on personality, motivation, and, potentially, an interaction between personality and motivation.