Table 3.

Quality of each measurement property

Measurement tool	Study Author	Internal consistency	Reliability	Content validity	Measurement error	Structural validity	Criterion validity	Cultural validity	Hypothesis testing	Responsiveness
1. Knowledge about Schizophrenia Questionnaire (KASQ) [28]	Ascher-Svanum & Krause, 1999	?	+	?						+
2. Knowledge Questionnaire on Home Care of Schizophrenics (KQHS) [29]	Balasubramanian et al., 2013	?		+
3. Knowledge about Schizophrenia Test (KAST) [30, 32]	Compton et al., 2007	?		+			-		+
	Daltio, et al., 2015		-	+				N/A	+
4. Multiple-Choice Knowledge of Mental Illnesses Test (MC-KOMIT) [31]	Compton et al., 2011	?	-	+					+	+
5. Mental Health Knowledge Schedule (MAKS) [33]	Evans-Lacko et al., 2010	-	+
6. Depression Multiple Choice Question (DMCQ) [34]	Gabriel & Violato, 2009	-		?		+			+
7. Depression Literacy (D-Lit) [35, 36]	Gulliver et al., 2012	?	-
	Kiropoulos et al., 2011	?	+
8. Anxiety Literacy Questionnaire (A-Lit) [35]	Gulliver et al., 2012	?	+
9. Test of Knowledge About ADHD (KADD) [37]	Hepperlen et al., 2002	+		?		-
10. Knowledge about Depression and Mania Inventory (KDMI) [38]	Kronmuller et al., 2008	?		+			-		+	+
11. Mental Health Literacy Scale (MHLS) [39]	O’Connor & Casey, 2015	+	+	+	?	?			+
12. Journey of Hope (JOH) Outcome Survey [40]	Pickett-Schenk et al., 2000	+				?			+
13. Knowledge of Mental Disorders (KMD) [41]	Serra et al., 2013	-				?			+
14. Adolescent Depression Knowledge Questionnaire (ADKQ) [42]	Hart et al., 2014	+		?		?
15. Mental health disorder recognition questionnaire (MDRQ) [43]	Swami et al., 2011		+						?
16. Mental Health Knowledge Questionnaire (MHKQ) [44]	Wang et al., 2013	-							+

+: positive rating, -: negative rating, ?: indeterminate rating, N/A: no information provided