This survey is part of Centerdata's Telepanel project. `Hagoel's friendship scale' is an instrument measuring four dimensions of friendship: feeling of closeness/ similarity of background/ friendship as an emotional, affectional experience or friendship as important in gaining personal goals/ sharing of intimate personal information about oneself and others. Background Variables: Age, year of birth / Sex / Ownership of house / Nr. of children living with family/household / Position in family/household / Size of family/household / Other: presence of partner in family/household / Respondent: occupational status in this dataset is available from the Centerdatabase: Respondent: gross income / Respondent: net income / Total family/household: gross income / Total family/ household: net income Respondent: highest grade attained / Respondent: highest type attended Other: constructed variable ( social economic class ) according to GFK * Dongen.