Driven by existing socialization theories, this study describes specific friendship contexts in which peer influence of alcohol misuse and depressive symptoms occurs. In the fall and spring of the school year, surveys were administered to 704 Italian adolescents (53 % male, M _age = 15.53) enrolled in Grades 9, 10 and 11. Different friendship contexts were distinguished based on two dimensions referring to the level (i.e., best friendships and friendship networks) and reciprocity (i.e., unilateral and reciprocal) of the relationships. Social network and dyadic analyses were applied in a complementary manner to estimate peer socialization effects across the different friendship contexts. Results showed that within friendship networks both male and female adolescents’ alcohol misuse was affected by friends’ alcohol misuse, regardless of whether the relationship was reciprocated or not. Conversely, peer socialization of depressive symptoms only emerged within very best friendship dyads of female adolescents. Findings suggest that the effects of peer socialization depend on the friendship context and specific types of behaviors. The theoretical and methodological implications of the findings are discussed.

Background: Over the years, a plethora of frailty assessment tools has been developed. These instruments can be basically grouped into two types of conceptualizations – unidimensional, based on the physical–biological dimension – and multidimensional, based on the connections among the physical, psychological, and social domains. At present, studies on the comparison between uni- and multidimensional frailty measures are limited. Objective: The aims of this paper were: 1) to compare the prevalence of frailty obtained using a uni- and a multidimensional measure; 2) to analyze differences in the functional status among individuals captured as frail or robust by the two measures; and 3) to investigate relations between the two frailty measures and disability. Methods: Two hundred and sixty-seven community-dwelling older adults (73.4±6 years old, 59.9% of women) participated in this cross-sectional study. The Cardiovascular Health Study (CHS) index and the Tilburg Frailty Indicator (TFI) were used to measure frailty in a uni- and multidimensional way, respectively. The International Physical Activity Questionnaire, the Center of Epidemiologic Studies Depression scale, and the Loneliness Scale were administered to evaluate the functional status. Disability was assessed using the Groningen Activity Restriction Scale. Data were treated with descriptive statistics, one-way analysis of variance, correlations, and receiver operating characteristic analyses through the evaluation of the areas under the curve. Results: Results showed that frailty prevalence rate is strictly dependent on the index used (CHS =12.7%; TFI =44.6%). Furthermore, frail individuals presented differences in terms of functional status in all the domains. Frailty measures were significantly correlated with each other (r=0.483), and with disability (CHS: r=0.423; TFI: r=0.475). Finally, the area under the curve of the TFI (0.833) for disability was higher with respect to the one of CHS (0.770). Conclusion: Data reported here confirm that different instruments capture different frail individuals. Clinicians and researchers have to consider the different abilities of the two measures to detect frail individuals.

This chapter discusses specifics of identity formation in Italian adolescents and emerging adults. We review consistent evidence illustrating that, in Italy, a progressive deferral of transition to adulthood strongly impacts youth identity development by stimulating identity exploration and postponement of identity commitments. We also consider the influence of ecological contexts and specific Italian groups (i.e., immigrant adolescents and those who drop out of school, youth living in disadvantaged areas in the south of Italy, and emerging adults who are unemployed or hold precarious jobs) for which the identity formation process is particularly challenging.

This study distinguishes different patterns of friendship quality in terms of support from and conflict with friends, and reciprocity. Associations between friendship patterns and adolescents' adjustment (self-perception, expectations for the future, depressive feelings, sense of alienation, lying, disobedience, and aggression) were hypothesized to be moderated by family stress and friendship reciprocity. The sample comprised 622 adolescents of both genders, aged 14 to 20 years. We administered a questionnaire, including the Friendship Quality Scale and a peer nomination, twice at a 6-month interval. We identified two patterns of stable friendships: high (47%) and low (37%) quality. In two other groups, friendship quality changed over time, either from low to high (7%), or from high to low (9%). Of all adolescents, 58% had reciprocal and stable friends and 42% had unilateral friends. Under conditions of high family stress, supportive friendships do not have a positive effect on expectations for success and sense of alienation. Reciprocal friendship promotes higher levels of lying and disobedience but also protects against aggression. Summarizing, the effects of friendship quality can be moderated, either diminishing or exacerbating it, by other context factors.