The term children with special educational needs (SEN) refers to highly diverse populations of children with a wide range of physical, cognitive and socioemotional disabilities or difficulties as well as strengths and resources causing them to require varying degrees of special educational support and assistance (Squires, 2012;Vehmas, 2010;Wilson, 2002).Several studies document significant gender imbalances in the number of students who receive special educational support, and for most disability categories the prevalence is higher for boys (Skårbrevik, 2002). The reasons for these imbalances are likely complex, and it is beyond the scope of the present review to account for the hypotheses and findings associated with each disability category. However, a general hypothesis across different categories of special educational needs is the notion that special educational needs are more likely to remain undetected in girls as symptoms and problems in girls may be less visible to educators (Arms et al., 2008).Traditional special education consists of segregating students with special needs from mainstream students within separate and typically smaller classrooms or educational settings. However, as early as in the 1930s, a movement originally known as mainstreaming, and in more recent years as inclusion, has sought to bring an end to segregated placement as the preferred educational option for students with special needs (Carlberg & Kavale, 1980). In 1994, the idea of inclusive education became even more consolidated when the Salamanca Statement was adopted by representatives from 92 countries, resulting in an international shift in policy. This meant that far more students with special needs started entering general educational settings around the globe (Murawski & Lee Swanson, 2001;Ruijs & Peetsma, 2009).The terms inclusion, mainstreaming, integrated placement, and cross-categorical instruction all refer to educational settings with a group composition consisting of a mixture of students with and without special educational needs. In the present review, we have chosen to use the term inclusion to refer to general educational settings in which there is a mixture of students with and without special educational needs. Ideally, inclusion and inclusive education should be based on an educational approach in which the goal is to continuously address and respond to the diversity of needs of all learners through increasing participation and reducing exclusion within and from education. Inclusion thus may involve changes and modifications in content, approaches, structures and strategies, with a common vision which covers all children and a conviction that it is the responsibility of the regular system to educate all children.Inclusion emphasises the provision of opportunities for equal participation of children with disabilities (physical, social and/or emotional) whenever possible into general education, but leaves open the possibility of personal choice and options for special assistance and facilities for those who need ...