INTRODUCTION
Research on bullying has recently broadened its
scope to understand the role of morality as a factor
in relation to children’s aggressive behavior. In
particular, a series of studies have investigated the relationship
between moral disengagement and bullying
[Hymel et al., 2010].However, two notable limitations
of the extant literature were identified. First, although
Bandura [1986, 1991] identified different sets of selfjustification
mechanisms, research has traditionally
measured moral disengagement as a unidimensional
construct, with one exception [Pornari and Wood,
2010]. Second, moral disengagement has consistently
been measured as an individual factor. To date, literature
fails to provide empirical evidence investigating
the relation of class moral disengagement (i.e., moral
disengagement at the class-level) with children’s aggression
and/or bullying.