This is a 'readme.txt' for supplementary materials of "Seddig, D. & Leitgb, H. (2017). Approximate measurement invariance and longitudinal confirmatory factor analysis: concept and application with panel data. Survey Research Methods. (Manuscript accepted for publication)"

Items in the data set "data_sed_lei_2017.dat" (taken from the "Crime in the modern city" panel study [1,2]): 
("To what extend are the following aspects relevant for you?")
bl0054 : understanding for people who do what they desire 
bl0069 : living a life of pleasure
bl0076 : excitement
dl0054 : understanding for people who do what they desire 
dl0069 : living a life of pleasure
dl0076 : excitement
fl0054 : understanding for people who do what they desire 
fl0069 : living a life of pleasure
fl0076 : excitement
hl0054 : understanding for people who do what they desire 
hl0069 : living a life of pleasure
hl0076 : excitement

Explanation of item designations:
The first letter ("b", "d", "f", or "h") refers to the respective panel wave (i.e., age 14, 16, 18, or 20). "l00##" refers to the item names.

Response categories:
 (1) 		"totally irrelevant"
 (2) 		"irrelevant"
 (3) 		"partly"
 (4) 		"relevant"
 (5) 		"very relevant"
 (-9999) 	 missing value

References:
[1] Boers, K., Reinecke, J., Seddig, D., & Mariotti, L. (2010). Explaining the development of adolescent violent delinquency. European Journal of Criminology, 7(6), 499520.
[2] www.crimoc.org
