title: Examination of the Korean Modified Checklist of Autism in Toddlers: Item Response Theory.
abstract: The study examined the clinical utility and psychometric properties of the Korean Modified Checklist of Autism in Toddlers (K-M-CHAT)-2. A sample of 2300 parents of 16- to 36-month-old children was recruited across South Korea. A phone interview was utilized to follow up with participants who initially screened positive for autism spectrum disorder (ASD). Item response theory was applied to assess the psychometric properties of the K-M-CHAT-2. Parents' responses were substantially changed after the follow-up, and the final screen-positive rate was 2.3 %. Results indicated that the psychometric properties of items 1, 3, 11, 18 and 22 were not as strong as the other items. The K-M-CHAT-2 is a useful ASD screening test when implemented with a follow-up.
authors.affiliation: Department of Human Communication Studies, California State University, 2600 E Nutwood Ave., Suite 420-1, Fullerton, CA, 92831, USA, hseung@fullerton.edu.
authors.forename: HyeKyeung
authors.initials: H
authors.lastname: Seung
authors.forename: Juye
authors.initials: J
authors.lastname: Ji
authors.forename: Soo-Jin
authors.initials: SJ
authors.lastname: Kim
authors.forename: Inkyung
authors.initials: I
authors.lastname: Sung
authors.forename: Young-Ah
authors.initials: YA
authors.lastname: Youn
authors.forename: Gyunghun
authors.initials: G
authors.lastname: Hong
authors.forename: Hyeonjin
authors.initials: H
authors.lastname: Lee
authors.forename: Young Hwan
authors.initials: YH
authors.lastname: Lee
authors.forename: Hyunsuk
authors.initials: H
authors.lastname: Lee
authors.forename: Hyun Kyung
authors.initials: HK
authors.lastname: Youm
mesh_terms: D044466:Asian People; D001321:Autistic Disorder / Q000175:diagnosis*; D057189:Checklist; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D010290:Parents; D011581:Psychological Tests / Q000592:standards*; D056910:Republic of Korea
references.citation: J Autism Dev Disord. 2000 Dec;30(6):607-12
references.pmid: 11261472
references.citation: Med Care. 2000 Sep;38(9 Suppl):II28-42
references.pmid: 10982088
references.citation: Autism. 2008 Nov;12(6):627-44
references.pmid: 19005032
references.citation: Pediatrics. 2008 Dec;122(6):e1149-58
references.pmid: 19047216
references.citation: J Autism Dev Disord. 2013 Dec;43(12):2844-54
references.pmid: 23619952
references.citation: Pediatrics. 2013 Apr;131(4):e1121-7
references.pmid: 23530174
references.citation: Neurology. 2000 Aug 22;55(4):468-79
references.pmid: 10953176
references.citation: Br J Psychiatry. 1992 Dec;161:839-43
references.pmid: 1483172
references.citation: Autism. 2006 May;10(3):229-42
references.pmid: 16682396
references.citation: J Child Neurol. 2008 Jan;23(1):67-72
references.pmid: 18160559
references.citation: J Autism Dev Disord. 2014 Jan;44(1):194-203
references.pmid: 23740200
references.citation: Autism. 2008 Sep;12(5):513-35
references.pmid: 18805945
references.citation: MMWR Surveill Summ. 2014 Mar 28;63(2):1-21
references.pmid: 24670961
references.citation: Pediatr Res. 2009 Jun;65(6):591-8
references.pmid: 19218885
references.citation: J Autism Dev Disord. 2011 Oct;41(10):1342-51
references.pmid: 21161677
references.citation: J Dev Behav Pediatr. 2006 Apr;27(2 Suppl):S111-9
references.pmid: 16685177
references.citation: Disabil Health J. 2010 Jul;3(3):186-201
references.pmid: 21122784
references.citation: Pediatrics. 2014 Jan;133(1):37-45
references.pmid: 24366990
references.citation: Psychol Bull. 1990 Mar;107(2):238-46
references.pmid: 2320703
references.citation: Am J Psychiatry. 2011 Sep;168(9):904-12
references.pmid: 21558103
references.citation: J Autism Dev Disord. 2006 Aug;36(6):713-22
references.pmid: 16633887
references.citation: J Autism Dev Disord. 2001 Apr;31(2):131-44
references.pmid: 11450812
references.citation: J Autism Dev Disord. 2007 Mar;37(3):425-36
references.pmid: 16897377
references.citation: J Child Psychol Psychiatry. 2014 May;55(5):485-94
references.pmid: 24313878
references.citation: J Autism Dev Disord. 2012 Jan;42(1):23-34
references.pmid: 21373956
references.citation: Clin Pediatr (Phila). 2014 Jun;53(7):632-8
references.pmid: 24550559
references.citation: Assessment. 2011 Sep;18(3):291-307
references.pmid: 20644081
references.citation: Autism. 2014 Feb;18(2):76-84
references.pmid: 23262658
references.citation: Soc Psychiatry Psychiatr Epidemiol. 2012 Mar;47(3):395-8
references.pmid: 21293843
references.citation: Dev Med Child Neurol. 2005 Jan;47(1):10-8
references.pmid: 15686284
references.citation: J Autism Dev Disord. 2008 May;38(5):827-39
references.pmid: 17882539