#18	#15 OR #17
#17	#13 AND #16
#16	randomized controlled trial [pt] OR controlled clinical trial [pt] OT randomized [tiab] OR placebo [tiab] OR clinical trials as topic [mesh: noexp] OR randomly [tiab] OR trial [ti] OR groups [tiab]
#15	#13 AND #14
#14	systematic[sb] OR meta-analysis[pt] OR meta-analysis as topic[mh] OR meta-analysis[mh] OR meta analy*[tw] OR metanaly*[tw] OR metaanaly*[tw] OR met analy*[tw] OR integrative research[tiab] OR integrative review*[tiab] OR integrative overview*[tiab] OR research integration*[tiab] OR research overview*[tiab] OR collaborative review*[tiab] OR collaborative overview*[tiab] OR systematic review*[tiab] OR technology assessment*[tiab] OR technology overview*[tiab] OR “Technology Assessment, Biomedical”[mh] OR HTA[tiab] OR HTAs[tiab] OR comparative efficacy[tiab] OR comparative effectiveness[tiab] OR outcomes research[tiab] OR indirect comparison*[tiab] OR ((indirect treatment[tiab] OR mixed-treatment[tiab]) AND comparison*[tiab]) OR Embase*[tiab] OR Cinahl*[tiab] OR systematic overview*[tiab] OR methodological overview*[tiab] OR methodologic overview*[tiab] OR methodological review*[tiab] OR methodologic review*[tiab] OR quantitative review*[tiab] OR quantitative overview*[tiab] OR quantitative synthes*[tiab] OR pooled analy*[tiab] OR Cochrane[tiab] OR Medline[tiab] OR Pubmed[tiab] OR Medlars[tiab] OR handsearch*[tiab] OR hand search*[tiab] OR meta-regression*[tiab] OR metaregression*[tiab] OR data synthes*[tiab] OR data extraction[tiab] OR data abstraction*[tiab] OR mantel haenszel[tiab] OR peto[tiab] OR der-simonian[tiab] OR dersimonian[tiab] OR fixed effect*[tiab] OR “Cochrane Database Syst Rev”[Journal:__jrid21711] OR “health technology assessment winchester, england”[Journal] OR “Evid Rep Technol Assess (Full Rep)”[Journal] OR “Evid Rep Technol Assess (Summ)”[Journal] OR “Int J Technol Assess Health Care”[Journal] OR “GMS Health Technol Assess”[Journal] OR “Health Technol Assess (Rockv)”[Journal] OR “Health Technol Assess Rep”[Journal]
#13	#1 AND #10 AND #11 AND #12
#12	Child[Mesh] OR Infant[Mesh] OR child*[tiab] OR infant*[tiab] OR baby[tiab] OR babies[tiab] OR toddler*[tiab] OR boy*[tiab] OR girl*[tiab] OR pre-school*[tiab] OR preschool*[tiab] OR kindergarten*[tiab] OR kinder-garten[tiab] OR nursery[tiab]
#11	test*[tiab] OR instrument[tiab] OR judgments[tiab] OR scale[tiab] OR tool*[tiab] OR procedure*[tiab] OR assessment [tiab] OR assessing[tiab] OR vignette*[tiab] OR scenario*[tiab] OR “rating scale”[tiab] OR “rating scales”[tiab] OR “coding manuals”[tiab] OR “coding schemes”[tiab] OR checklist*[tiab] OR interview*[tiab] OR questionnaire*[tiab]
#10	#2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9
#9	reliability[tiab]
#8	early identification [tiab]
#7	accuracy[tiab]
#6	“Sensitivity and Specificity” [Mesh]
#5	“Predictive Value of Tests” [Mesh]
#4	“reproducibility of Results” [MESH]
#3	Diagnosis” [Mesh] OR “diagnosis” [Subheading]
#2	diagnosis” [tiab] OR “diagnostic” [tiab]
#1	“Language Disorders”[Mesh] OR “Speech Sound Disorder”[Mesh] OR speech disorder*[tiab] OR speech delay*[tiab] OR speech impair*[tiab] OR language disorder*[tiab] OR language delay*[tiab] OR language impair*[tiab] OR language difficulties[tiab] OR phonological disorder* [tiab]