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BackgroundRacism and associated discrimination are pervasive and persistent challenges with multiple cumulative deleterious effects contributing to inequities in various health outcomes. Globally, research over the past decade has shown consistent associations between racism and negative health concerns. Such research confirms that race endures as one of the strongest predictors of poor health. Due to the lack of validated Australian measures of racist attitudes, RACES (Racism, Acceptance, and Cultural-Ethnocentrism Scale) was developed.MethodsHere, we examine RACES’ psychometric properties, including the latent structure, utilising Item Response Theory (IRT). Unidimensional and Multidimensional Rating Scale Model (RSM) Rasch analyses were utilised with 296 Victorian primary school students and 182 adolescents and 220 adults from the Australian community.ResultsRACES was demonstrated to be a robust 24-item three-dimensional scale of Accepting Attitudes (12 items), Racist Attitudes (8 items), and Ethnocentric Attitudes (4 items). RSM Rasch analyses provide strong support for the instrument as a robust measure of racist attitudes in the Australian context, and for the overall factorial and construct validity of RACES across primary school children, adolescents, and adults.ConclusionsRACES provides a reliable and valid measure that can be utilised across the lifespan to evaluate attitudes towards all racial, ethnic, cultural, and religious groups. A core function of RACES is to assess the effectiveness of interventions to reduce community levels of racism and in turn inequities in health outcomes within Australia.Electronic supplementary materialThe online version of this article (doi:10.1186/s12939-016-0338-4) contains supplementary material, which is available to authorized users.

Existing Australian measures of racist attitudes focus on single groups or have not been validated across the lifespan. To redress this, the present research aimed to develop and validate a measure of racial, ethnic, cultural and religious acceptance — the Australian Racism, Acceptance, and Cultural-Ethnocentrism Scale (RACES) — for use with children, adolescents and adults. Interviews and focus groups were conducted with 30 adolescents in Victoria, Australia, to develop the instrument, which was pilot tested with eight children. The novel 34-item scale consists of three subscales (Accepting Attitudes — 12 items; Racist Attitudes — 8 items; Ethnocentric Attitudes — 4 items) and a 10-item measure of social desirability. The instrument was tested with 296 Victorian school children, 182 adolescents and 120 adults from the Australian community, with data modelled and analysed utilising classical test theory and item response theory. Estimates of internal consistency reliability and factorial, construct, convergent and discriminant validity support the measure. The instrument is the first general attitudinal measure of racial, ethnic, cultural and religious acceptance to be designed and scientifically validated within the Australian context. RACES can be utilised across the lifespan to evaluate attitudes towards all racial, ethnic, cultural and religious groups. RACES has potential to be widely utilised to evaluate anti-racism and pro-diversity interventions implemented within schools and throughout the community, enabling the development of a strong evidence base for initiatives to reduce community levels of racism. However, future research is needed to confirm the psychometric properties and establish the temporal stability of the scale prior to dissemination throughout Australia.

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