L. Keltikangasjarvinen et M. Lindeman, EVALUATION OF THEFT, LYING, AND FIGHTING IN ADOLESCENCE, Journal of youth and adolescence, 26(4), 1997, pp. 467-483
The nature of age and gender differences in the evaluation of three ev
eryday immoral behaviors was analyzed with a 21-item questionnaire. Th
e items included examples of theft, lying, and fighting expressed both
as omissions and commissions, commissions further specified with posi
tive motives, negative motives, duress, or provocation. Three age grou
ps were included in the study: preadolescents, midadolescents, and lat
e adolescents (N = 2594). The most important findings were that boys a
ccepted all immoral acts better than girls, the ''immoral peak'' in mi
dadolescence, the low differentiation between the different types of a
cts in preadolescence, and the flexible usage of different rationales
in middle and late adolescence.