The purpose of this study was to investigate Finnish adolescents’ (n =
390) social goals during three years of lower secondary school at six
(6) time points (from age 12 to age 16). We intended to study the
measurement validity and longitudinal stability of adolescents’ social
goals as measured by the Interpersonal Goals Inventory for Children
(IGI-C), developed by Ojanen, Grönroos and Salmivalli (2005). The
interpersonal circumplex model is based on two pairs of factors: (1)
agency and submission and (2) communion and separation. We aimed to test
whether the phenomena of social goals could be captured as individual
factors using these four qualities instead of the standard two broader
dimensions; Agentic and Communal. These dimensions are usually divided
into eight sub-scales according to different combinations. This
hypothesized four-factor model was modeled and confirmed using
longitudinal confirmatory factor analysis (LCFA). According to the LCFA,
the stability within each factor was at least moderate, and the
interrelations between the factors varied over time. Acceptable
concurrent and discriminant validity was shown by mostly stronger
correlations within the social goal sum scores than between the social
goals and social anxiety scores. Compared to the original IGI-C
measurement tool, the tool utilized in this study, the Scale of
Interpersonal Goals for Adolescents (SIG-A), provides a more simplified
measurement. This simplified measurement offers a new way to examine
adolescents’ social goals in terms of four separate factors. Moreover,
with this measurement tool, it is possible to study the social
development of adolescents in a more detailed manner - one social goal
at a time.