Katariina Salmela-Aro

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This paper examined the relative influence of selection and socialization on alcohol and tobacco use in adolescent peer networks and peer groups. The sample included 1419 Finnish secondary education students (690 males and 729 females, mean age 16 years at the outset) from nine schools. Participants identified three school friends and described their(More)
The Contextual Activity Sampling System (CASS) research methodology and the CASS-Query mobile application have been developed for contextually tracking of participants' object-oriented activities. The method relies on Ecological Momentary Assessment designed to trace real-time advancement of learning activities by frequent sampling during periods of(More)
This study focused on investigating the kinds of personal goals young adults have when they are faced with the transition from school to work; the extent to which they reconstruct these goals as a consequence of their success in dealing with this transition; and how their goals influence their depressive symptoms. In order to investigate these research(More)
The Contextual Activity Sampling System (CASS) methodology and CASS-Query tools have been developed for the investigation of learning and working practices. The CASS-methods and tools provide contextualized data that allow the analyzing and modeling of within-person changes across time. This paper describes a pilot study with 3G mobiles used by eight(More)
Recent research has shown that personality traits continue to develop throughout the life span, but most profound changes are typically found during young adulthood. Increasing evidence suggests that life events play a significant role in many of these changes. The present longitudinal study examined the role of work, education, social, and health-related(More)
PURPOSE This study examined the role of two different types of peer socialization (convergence, contagion) in adolescents' depression, adjusting for the effects of peer selection and deselection. METHODS The sample used in this study comprised 949 Finnish adolescents (56% females; mean age: 16 years at the outset) attending classrooms in eight secondary(More)
Two independent studies were conducted to extend previous research by examining the associations between task value priority patterns across school subjects and aspirations toward the physical and information technology- (IT-) related sciences. Study 1 measured task values of a sample of 10th graders in the United States (N = 249) across (a) physics and(More)
This chapter examines development through different life transitions, such as educational transitions and transition to parenthood during adolescence to adulthood in the context of the life-span model of personal goals. According to the life-span model of motivation, four key mechanisms-channeling, choice, co-regulation, and compensation-play a key role in(More)
Young adults actively construct their identity by exploring and committing to opportunities through the setting of personal goals. Typically personal goal contents are related to young adults' developmental tasks but sometimes goals are self-focused. This longitudinal study explored personal goal and concern contents in relation to identity profiles among(More)
In order to further understand why depressive symptoms are associated with negative goal appraisals, the present study examined the genetic and environmental correlations and interactions between depressive symptoms and career-related goal appraisals. A total of 1,240 Finnish twins aged 21-26 years completed a questionnaire containing items on the appraisal(More)