Table 2.

Sample for case study schools

School	Trial status	Site	Administrative region	Free school meal eligibility	School size	Inspectorate assessment
School 1	Intervention	England	1	Low	Large	Good
School 2	Intervention	England	2	High	Small	Inadequate
School 3	Intervention	Wales	3	High	Small	Adequate
School 4	Intervention	Wales	4	Low	Large	Good with outstanding features
School 5	Control	England	1	Low	Large	Requires improvement
School 6	Control	England	2	High	Small	Good
School 7	Control	Wales	3	High	Small	Adequate
School 8	Control	Wales	4	Low	Large	Good