Abstract
Abstract. The German version of the Perception of Inclusion Questionnaire (PIQ), which is used to assess students’ emotional inclusion, social inclusion, and academic self-concept, was analyzed with the multi-unidimensional graded response model (GRM) and investigated for differential item functioning (DIF) between students with and without learning difficulties (LD). The PIQ was administered to 823 primary school students in Switzerland (Mage = 11.94, SD = 1.01 years), of which 190 were classified as having LD. Results show that the PIQ is a reliable instrument for assessing students’ perceptions of their inclusion at school, especially in the lower ranges of the scales. No bias was detected for any items of the PIQ’s three scales in relation to the exogenous variable LD, with the exception of one item that showed a minor deviation.
References
2000). A comparison of graded response and Rasch partial credit models with subjective well-being. Journal of Educational and Behavioral Statistics, 25, 253–270. https://doi.org/10.3102/10769986025003253
(2015). Social participation of students with special educational needs in different educational systems. Irish Educational Studies, 34, 43–54. https://doi.org/10.1080/03323315.2015.1010703
(2002). Evaluating goodness-of-fit indexes for testing measurement invariance. Structural Equation Modeling, 9, 233–255. https://doi.org/10.1207/S15328007SEM0902_5
(2011). lordif: An R package for detecting differential item functioning using iterative hybrid ordinal logistic regression/item response theory and Monte Carlo simulations. Journal of Statistical Software, 39, 1–30.
(2009). The theory and practice of Item Response Theory. New York, NY: Guilford Press.
(2016). Secondary schools included: A literature review. International Journal of Inclusive Education, 20, 109–135. https://doi.org/10.1080/13603116.2015.1075609
(2014). From alpha to omega: A practical solution to the pervasive problem of internal consistency estimation. British Journal of Psychology, 105, 399–412. https://doi.org/10.1111/bjop.12046
(2000). Item response theory for psychologists. Mahwah, NJ: Psychology Press.
(2004). An empirical evaluation of alternative methods of estimation for confirmatory factor analysis with ordinal data. Psychological Methods, 9, 466–491. https://doi.org/10.1037/1082-989X.9.4.466
(1989). Integration in die Schulklasse. Fragebogen zur Erfassung von Dimensionen der Integration von Schülern FDI 4–6
([Integration in the classroom. Questionnaire for assessing dimensions of integration of students] . Bern, Switzerland: Haupt.2011). Self-concept and academic achievement: A meta-analysis of longitudinal relations. Journal of School Psychology, 49, 505–528. https://doi.org/10.1016/j.jsp.2011.07.001
(2016). Differential item functioning magnitude and impact measures from item response theory models. Psychological Test and Assessment Modeling, 58, 79–98.
(2016). A comparison of estimation methods for a multi-unidimensional graded response IRT model. Frontiers in Psychology, 7, 1–12. https://doi.org/10.3389/fpsyg.2016.00880
(1999). Test theory: A unified treatment. Mahwah, NJ: Erlbaum.
(1998–2017). Mplus user’s guide (7th ed.). Los Angeles, CA: Muthén & Muthén.
(2015). A meta-analysis of the effects of placement on academic and social skill outcome measures of students with disabilities. Research in Developmental Disabilities, 47, 80–92. https://doi.org/10.1016/j.ridd.2015.08.014
(2016). Awareness-raising, legitimation or backlash? Effects of the UN convention on the rights of persons with disabilities on education systems in Germany. Globalisation, Societies and Education, 14, 227–250. https://doi.org/10.1080/14767724.2014.982076
(2003). FEESS 3-4. Fragebogen zur Erfassung emotionaler und sozialer Schulerfahrungen von Grundschulkindern dritter und vierter Klassen
([Questionnaire for assessing emotional and social school experiences in third and fourth grades] . Göttingen, Germany: Hogrefe.2016). Schulisches Integriertsein – eine Genderfrage?
([School integration – a question of gender?] (Master’s thesis). Zurich, Switzerland: University of Applied Sciences in Special Needs Education.2016). psych: Procedures for personality and psychological research, Version 1.6.9. Evanston, IL: Northwestern University. Retrieved from https//cran.r-project.org/web/packages/psych/index.html
(2012). When can categorical variables be treated as continuous? A comparison of robust continuous and categorical SEM estimation methods under suboptimal conditions. Psychological Methods, 17, 354–373. https://doi.org/10.1037/a0029315
(2007). Psychometric properties of an emotional adjustment measure: An application of the graded response model. European Journal of Psychological Assessment, 23, 39–46. https://doi.org/10.1027/1015-5759.23.1.39
(2009). Effects of inclusion on students with and without special educational needs reviewed. Educational Research Review, 4, 67–79. https://doi.org/10.1016/j.edurev.2009.02.002
(2010). Inclusive education and students without special educational needs. Educational Research, 52, 351–390. https://doi.org/10.1080/00131881.2010.524749
(1997).
(Graded response model . In W. J. van der LindenR. K. HambletonEds., Handbook of modern item response theory (pp. 85–100). New York, NY: Springer.2015). Evaluation of a short version of the Illinois Loneliness and Social Satisfaction Scale in a sample of students with and without special educational needs. British Journal of Special Education, 42, 257–278. https://doi.org/10.1111/1467-8578.12089
(2011). Some thoughts concerning the recent shift form measures with many items to measures with few items (Editorial). European Journal of Psychological Assessment, 27, 71–72. https://doi.org/10.1027/1015-5759/a000056
(2007). Comparing multiunidimensional and unidimensional item response theory models. Educational and Psychological Measurement, 67, 899–919. https://doi.org/10.1177/0013164406296977
(2015). An overview and practical guide to IRT measurement equivalence analysis. Organizational Research Methods, 18, 3–46. https://doi.org/10.1177/1094428114553062
(2003).
(Self-concepts of preadolescents with mild intellectual disabilities . In H. W. MarshR. G. CravenD. M. McInerneyEds., International advances in self research (pp. 203–229). Greenwich, CT: Information Age Publishing.2006). Convention on the rights of persons with disabilities and optional protocol. New York, NY: United Nations.
. (2012). Emotionales Erleben im Unterricht und schulbezogene Selbstbilder
([Emotional experiences in education and school related self-concepts] . Bern, Switzerland: SZH/CSPS.2014). Entwicklung und erste Validierung einer Kurzversion des “Fragebogens zur Erfassung von Dimensionen der Integration von Schülern (FDI 4–6)” von Haeberlin, Moser, Bless und Klaghofer
([Development and first validation of a short version of the Questionnaire for measuring dimensions of integration of students (FDI 4-6) by Haeberlin, Moser, Bless, and Klaghofer] . Empirische Sonderpädagogik, 6, 99–113.2015). The Perceptions of Inclusion Questionnaire (PIQ). German Version. Retrieved from http://www.piqinfo.ch
(2007). Item factor analysis: Current approaches and future directions. Psychological Methods, 12, 58–79. https://doi.org/10.1037/1082-989X.12.1.58
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