Abstract
The Autism Spectrum Quotient is a widely used instrument for the detection of autistic traits. However, the validity of comparisons of Autism Spectrum Quotient scores between groups may be threatened by differential item functioning. Differential item functioning entails a bias in items, where participants with equal values of the latent trait give different answers because of their group membership. In this article, items of the Autism Spectrum Quotient were studied for differential item functioning between different groups within a single sample (N = 408). Three analyses were conducted. First, using a Rasch mixture model, two latent groups were detected that show differential item functioning. Second, using a Rasch regression tree model, four groups were found that show differential item functioning: men without autism, women without autism, people 50 years and younger with autism, and people older than 50 years with autism. Third, using traditional methods, differential item functioning was detected between groups with and without autism. Therefore, group comparisons with the Autism Spectrum Quotient are at risk of being affected by bias. Eight items emerged that consistently show differences in response tendencies between g...Continue Reading
References
Jul 7, 2001·Journal of Autism and Developmental Disorders·S Baron-CohenE Clubley
Oct 4, 2006·Journal of Autism and Developmental Disorders·Susan R LeekamJudith Gould
Feb 28, 2008·Journal of Autism and Developmental Disorders·Rosa A HoekstraDorret I Boomsma
Dec 9, 2009·Psychological Methods·Carolin StroblGerhard Tutz
Feb 26, 2010·Journal of Autism and Developmental Disorders·Vasiliki TotsikaRichard P Hastings
Aug 11, 2010·Journal of Autism and Developmental Disorders·Rosa A HoekstraSophie van der Sluis
Sep 2, 2010·Behavior Research Methods·David MagisPaul De Boeck
Jan 24, 2012·Journal of the American Academy of Child and Adolescent Psychiatry·Carrie AllisonSimon Baron-Cohen
Sep 19, 2012·Research in Developmental Disabilities·Winnie Yu-Pow LauMiao-Chun Chou
Mar 16, 2013·Journal of Autism and Developmental Disorders·Megan FreethElizabeth Milne
Apr 27, 2013·Journal of Autism and Developmental Disorders·Winnie Yu Pow LauCandida Clifford Peterson
May 23, 2013·Journal of Autism and Developmental Disorders·Aja L MurrayMichael O'Donnell
Oct 1, 2013·Lancet·Meng-Chuan LaiSimon Baron-Cohen
Dec 20, 2013·Psychometrika·Carolin StroblAchim Zeileis
Feb 11, 2015·Psychological Assessment·Mary E StewartRoger Watson
Jul 3, 2015·Autism : the International Journal of Research and Practice·Lorcan KennyElizabeth Pellicano
Aug 25, 2015·Psychological Assessment·Aja Louise MurrayRenate Kuenssberg
Feb 11, 2016·Journal of Autism and Developmental Disorders·Anne G Lever, Hilde M Geurts
Nov 5, 2016·Autism : the International Journal of Research and Practice·Rachel GroveSander Begeer
Nov 29, 2016·Autism Research : Official Journal of the International Society for Autism Research·Aja Louise MurrayBonnie Auyeung
Mar 30, 2017·Journal of Autism and Developmental Disorders·Jennifer L Stevenson, Kari R Hart
Apr 21, 2017·Journal of Autism and Developmental Disorders·Lars-Olov Lundqvist, Helen Lindner
Sep 29, 2017·Assessment·Aja Louise MurrayRenate Kuenssberg
Dec 1, 2017·Journal of Autism and Developmental Disorders·Helen McConachieJacqui Rodgers
Jan 20, 2018·Journal of Autism and Developmental Disorders·Anne G Lever, Hilde M Geurts
Citations
Sep 15, 2019·Autism Research : Official Journal of the International Society for Autism Research·Gavin R StewartRebecca A Charlton
Mar 11, 2020·Psychological Medicine·Tim B ZiermansUNKNOWN Genetic Risk and Outcome of Psychosis (GROUP) Investigators
Jan 19, 2020·Journal of Autism and Developmental Disorders·Hilde M GeurtsClaudia J P Simons
Dec 5, 2019·Molecular Autism·Felicity SedgewickKate Tchanturia
Apr 27, 2021·The American Journal of Psychiatry·Lucy RiglinAnita Thapar
May 8, 2021·Clinical Psychology Review·Joost A Agelink van RentergemHilde M Geurts
Nov 7, 2021·Journal of Autism and Developmental Disorders·Fangyuan LiuSander Begeer