First and foremost, the author would like to thank all the families who have given up their time to take part in the study and have supported it continuously sweep by sweep.
The Growing Up in Scotland study is very much a collaborative venture. We owe a huge debt of gratitude to our colleagues in NatCen's operations and computing departments and to our team of interviewers and supervisors for conducting the interviews with such dedication and professionalism.
I would also like to thank everyone involved in the preparation of this report - particularly John Curtice who provided advice on the analysis and Wendy van Rijswijk and colleagues at the Scottish Government who provided feedback on early drafts.
Responsibility for the opinions expressed in this report, and for all interpretation of the data, lies solely with the author.