Prosocial behavior means doing things that are helpful, kind, or positive toward others. It is when you show care and concern for other people in your actions and behaviors. Full definition
Internal consistency as measured by Cronbach's α coefficient were generally low ranging between 0.30 and 0.83 with only parent and teacher Hyperactivity — Inattention and teacher Prosocial Behaviour subscales having α > 0.7. (capmh.biomedcentral.com)
Other than for prosocial behaviours and hyperactivity / inattention all of the internal consistency coefficients for the Chinese sample were all somewhat lower than those reported in the original analysis of the psychometric properties of the SDQ [16]. (capmh.biomedcentral.com)
Strengths and Difficulties Questionnaire (SDQ [11, 12, 86]-RRB-: psychopathology scales (emotional symptoms, peer relationship problems, conduct problems, hyperactivity — inattention), prosocial behaviour scale, and supplement assessing impact of psychopathology (link.springer.com)