Is Social Justice present in the classroom? What are the teachers´ attitudes towards their commitment to injustices? How do they perceive the role of education in diminishing them? To answer these questions we aimed to build an instrument to measure and to answer these research questions. Since it does not exist in the literature specific scale, we have developed and validated an accurate instrument. These questions are part of a research funded by Ministry of Science and Innovation (Projects of Scientific Research and Technological Development. I+D+i, entitled "Schools for Social Justice" (Ref EDU2011-291143)).
To focus the meaning of Social Justice, we depart from the dynamic nature of the concept, which makes it particularly complex to measure it. We understand Social Justice as a three dimensional notion based on the model of the three "R" (Murillo & Hernández-Castilla, 2011), because it is based on Redistribution, Recognition and Representation ideas.
On the other hand, Social Justice in Education also involves three key ideas: An Education "for" Social Justice, as transformative of the society; which needs an education "in" Social Justice, understood as that which addresses the issue of Social Justice in the curriculum; and education "from" Social Justice, ie with just educational institutions (Dubet, 2005). This means how schools are organized and proceed in coherence with the eigenvalues of Social Justice.
As background to the measurement of Education and Social Justice, Rubin and Peplau (1973, 1975) built a 20 items "Just World Scale" (EMJ), after reviewing this application Dalbert, Montada & Schmitt (1987) propose a six-item scale assessing beliefs in a Just World (Dalbert, 2009; Ritter, Benson & Snyder, 1990). But also at the beginning of the 90s, Lipkus (1991) offered the seven-items global Scale Belief in a Just World".
Concentrated on a Rawls’ Social Justice concept, Torres-Harding, Siers & Olson (2012) built a 24-item "Scale of Social Justice”. It has been constructed in order to understand what are socio-cognitive processes involved. Furthermore, the "Scale of beliefs: Learning to Teach for Social Justice" in Ludlow, Enterline & Cochran-Smith (2008) of 12 items measured on the one hand, the beliefs of teachers towards the redistribution of resources, and on the other, the believes that teaching (education) for Social Justice is a measurable result of the teacher training.
In order to valuate such beliefs, Enterline, Cochran-Smith, Ludlow, & Mitescu (2008) analysed the data from the "Learning to Teach Social Justice" questionnaire (LTSJ-B). Ginns, Fryer, Amazan, McCormicky & Loughland (2014) improve the scale. Finally, a newly built instrument, survey of Social Justice," done by Jacott et al. (2014) addresses the teachers and students conceptions about Social Justice Evaluation Questionnaire.
The "Scale of Attitudes Toward Social Justice in Education (EAJSE)" emerges from the theoretical framework presented in this article and as a review of other related scales above-mentioned.
• Attitudes toward Social Justice: Assesses the teachers’ attitude towards injustice situations. It measures teachers’ sympathy and beliefs to discriminations.
• Attitudes toward Social Justice in Education: it seeks what teachers think about the role of education in achieving a more just society.
• Involvement/commitment of the teaching staff with the Social Justice: it measures teacher involvement with a socially just education (in terms of Redistribution of resources, Recognition of all students and involving them in school and society).