https://www.pearson.com/content/dam/corporate/global/pearson-dot-com/files/hattie/150602_DistractionWEB_V2.pdf

Interesting comments by Hattie (2015) that parents are being sold a message by private schools that they have better teacher, smaller classes, and more extracurricular.  "Parents pay
high fees for these schools in the hopes of
insuring a high quality education for their child.
There is the perception of there being slightly
higher odds of a good education (or at least
of meeting the ‘right’ people and avoiding the
‘wrong’ ones)" p.9. 

"When students’ prior achievement or socio-
economic background is considered, however,
the evidence shows little difference in achievement between private and public schools in
many systems (OECD,  2014, p. 409 in Hattie, 2015,p.9).  

  https://www.pearson.com/content/dam/corporate/global/pearson-dot-com/files/hattie/150602_DistractionWEB_V2.pdf