Study VanHoof & Raaijmakers (2002): study NL 1997
 Public
 1221 aged, secondary schools, The Netherlands, 1997?
 Sample
 Respondents
 N = 294
 Non Response
 not reported
 Assessment
 Questionnaire: Paper & Pencil Interview (PAPI)
Correlate
 Authors's Label
 Horizontal spatial integration (Horizontal integration)
 Our Classification


 Distribution
 1: N=79; 2: N=95; 3:N=95
 Related specification variables


 Operationalization
 Horizontal integration summerizes the extent to which each of the contextspecific identities is related to each of the other contextspecific identities. Measured bu calculation the mean of the absolute values of all possible correlations between contextspecific identities.
Assessed using selfreport on interrelatedness of contextspecific identities.
Observed Relation with Happiness
 exploration concerning school
 commitment concerning school