The international surveys of pupil achievement - PISA, TIMSS, and PIRLS - have been widely used to compare socioeconomic gradients in children's cognitive abilities across countries. Socioeconomic status is typically measured drawing on children's reports of family or home characteristics rather...

"The way in which families maintain long distance communication when they are separated because of migration has been revolutionised by the emergence of a variety of internet- and mobile phone-based platforms. These platforms have created a new communicative environment, which the authors call...