Paul Connolly, Ciara Keenan & Karolina Urbanska (2018) The trials of evidence-based practice in education: a systematic review of randomised controlled trials in education research 1980–2016, Educational Research, 60:3, 276-291, DOI:10.1080/00131881.2018.1493353
On page 277, the text reads:
Cohen, Manion, and Morrison (2011), now in its seventh edition.
This statement is incorrect, as Research Methods in Education is now in its eighth edition. The correct reference for the eighth edition is as follows:
Cohen, L., L. Manion, and K. Morrison. 2018. Research Methods in Education. 8th ed. New York: Routledge.