Successful education systems are able to guarantee that all students succeed at high levels. Across OECD countries …, around 60% of the overall, country-level variation in student performance can be traced to differences in how well students …

complex than the biological relationship of parents to children in both Sweden and the United States"--Forschungsinstitut zur …"It is well known that children reared in non-intact families on average have less favorable educational outcomes than … children reared in two-parent families. Evidence from the United States and Sweden indicates that living in a non-intact family …

In 2012, 15-year-old students spent over two hours on line each day, on average across OECD countries. The most common …% of students doing one of these every day or almost every day. Students who spent more than six hours per day on line … average across OECD countries, 7% of students spend this much time on line during a typical weekday. …