Facebook-related psychological phenomena attracted the great interest of researchers, but to date experiences
of Facebook (FB) users were usually operationalized through few objective behavioral measures
or through questionnaires which focused only on specific aspects of FB use. This study aimed to
construct a comprehensive questionnaire which will capture deeper psychological processes that take
place on FB. Through the EFA and CFA, we extracted five dimensions of FB behaviors: Compensatory use
of FB, Self-presentation on FB, Socializing and seeking sexual partners through FB, FB addiction, and FB
profile as the virtual self. Compensatory and addictive Facebook use is related to personality traits that
indicate poor social adaptiveness, such as social anxiety, low conscientiousness, neuroticism, introversion,
and low agreeableness, while Self-Presentation on FB further contributes to this maladaptive
process. Seeking new friends and intimate partners through Facebook is related to sensation seeking and
social anxiety. Realistic virtual representation of one's personality on Facebook is characteristic of individuals
who are socially anxious and open to experiences. The scale Psycho-Social Aspects of Facebook
Use (PSAFU) covers the wide range of psychological FB phenomena and should be used by researchers
interested in a detailed examination of FB users' experiences.