Multicultural literature, transformational powers?

Has it really got the power to transform? I’m reading lots that suggests it can but have yet to find any substantial research that can support this. We can expose children to different perspectives and discuss these with them but does that mean we change them? We can provide a window or a mirror for them to gaze through or to think reflectively about their own culture but I still need evidence to demonstrate that sharing multicultural texts makes a difference.
This blog post proved an interesting read and may lead me to further answers.