Search	Terms	Results
S16	S13 AND S15 – limited to 20150101‐20171231	235
S15	S5 AND S14	30,732
S14	student* OR pupil*	745,639
S13	S10 AND S11 AND S12	250
S12	S3 OR S4	12,413
S11	S1 OR S2	805
S10	S5 OR S6 OR S7 OR S8 OR S9	46,459
S9	Intellect* N2 develop*	197
S8	DE “Intellectual Development”	56
S7	School* N1 (performan* OR achiev*)	492
S6	Academic* N2 (performance* or achiev* or abilit* or outcome*)	4,251
S5	learn* OR develop* OR perform* OR achiev* OR abilit* OR outcome* OR improve*	46,459
S4	DE “Middle Schools” OR DE “Elementary Schools” OR DE “Secondary Schools* OR DE “Junior High Schools”	4,407
S3	(primary N1 School*) OR (elementary N1 school*) OR (secondary N1 school*) OR (middle N1 school*) OR (junior N1 high*)	12,413
S2	DE “Class Size” OR DE “Classroom Environment” OR DE “Crowding” OR DE “Flexible Scheduling” OR DE “Small Classes” OR DE “Teacher Student Ratio”	753
S1	class N2 size*	193