Abstract
Abstract. The Strengths and Difficulties Questionnaire (SDQ) aims to assess problems in the psychological adjustment of children and youths. In this paper, we present results from an analysis of the structure of the SDQ. Data were collected from a community sample of 582 children and adolescents aged 10–19 years in Poland. The results showed that the bi-factor model yielded a good fit to the data. Out of five original SDQ factors, only emotional symptoms and prosocial behavior scales were distinguished from the general factor of difficulties. Additionally, two independent facets that concerned the characteristics of unsettlement and cautiousness have been extracted from the hyperactivity and conduct scales. The achieved structure differs from the theoretically assumed structure, but the findings are consistent with the Circumplex of Personality Metatraits (CPM), which was adapted to interpret the results. Moreover, with the help of the CPM, an additional difficulty that can be introduced to the model was identified.
References
2012). Reliability of the strengths and difficulties questionnaire among Finnish 4–9-Year-Old children. Nordic Journal of Psychiatry, 66, 403–413. doi: 10.3109/08039488.2012.660706
(2005). The Strengths and Difficulties Questionnaire: U.S. normative data and psychometric properties. Journal of the American Academy of Child and Adolescent Psychiatry, 44, 557–564. doi: 10.1097/01.chi.0000159157.57075.c8
(1986).
(The wording and translation of research instruments . In W. J. LonneriJ. W. BerryEds., Cross-cultural research methodology series: Field methods in cross cultural research (Vol. 8, pp. 137–164). Beverly Hills, CA: Sage.2001). An overview of analytic rotation in exploratory factor analysis. Multivariate Behavioral Research, 36, 111–150. Retrieved from http://www.rc.usf.edu/~jdorio/FA/Brown%20%282001%29%20An%20Overview%20of%20Analytic%20Rotation%20in%20Exploratory%20Factor%20Analysis.pdf
(2015). Investigation of a bifactor model of the Strengths and Difficulties Questionnaire. European Child & Adolescent Psychiatry, Advance online publication. doi: 10.1007/s00787-015-0679-3
(2007). Psychometric properties of the French version of the self-report and teacher Strengths and Difficulties Questionnaire (SDQ). European Journal of Psychological Assessment, 23, 79–88. doi: 10.1027/1015-5759.23.2.79
(2006). A comparison of bifactor and second-order models of quality of life. Multivariate Behavioral Research, 41, 189–225. doi: 10.1207/s15327906mbr4102_5
(2006). Higher-order factors of the Big Five in a multiinformant sample. Journal of Personality and Social Psychology, 91, 1138–1151. doi: 10.1037/0022-3514.91.6.1138
(2004). Revisiting the factor structure of the Strengths and Difficulties Questionnaire: United States, 2001. Journal of the American Academy of Child and Adolescent Psychiatry, 43, 1159–1167. doi: 10.1097/01.chi.0000132808.36708.a9
(1997). Higher-order factors of the Big Five. Journal of Personality and Social Psychology, 73, 1246–1256. doi: 10.1037/0022-3514.73.6.1246
(2013). Factorial structure of the SCAS and its relationship with the SDQ. European Journal of Psychological Assessment, 29, 28–35. doi: 10.1027/1015-5759/a000117
(2012). Psychometric properties of the Strength and Difficulties Questionnaire from five European countries. International Journal of Methods in Psychiatric Research, 21, 232–245. doi: 10.1002/mpr.1364
(2009). The factor structure of the Strengths and Difficulties Questionnaire (SDQ) in Greek adolescents. Annals of General Psychiatry, 8, 20–27. doi: 10.1186/1744-859X-8-20
(1997). The Strengths and Difficulties Questionnaire: A research note. Journal of Child Psychology and Psychiatry, 38, 581–586. doi: 10.1111/j.1469-7610.1997.tb01545.x
(2001). Psychometric properties of the Strengths and Difficulties Questionnaire. Journal of the American Academy of Child and Adolescent Psychiatry, 40, 1337–1345. doi: 10.1097/00004583-200111000-00015
(1998). The Strengths and Difficulties Questionnaire: A pilot study on the validity of the self-report version. European Child & Adolescent Psychiatry, 7, 125–130. doi: 10.1007/s007870050057
(2013). Psychometric behaviour of the Strengths and Difficulties Questionnaire (SDQ) in the Spanish national health survey 2006. BMC Psychiatry, 13, 95–106. doi: 10.1186/1471-244X-13-95
(2005).
(Issues, designs and technical guidelines for adapting tests into multiple languages and cultures . In R. K. HambletonP. F. MerendaC. D. SpielbergerEds., Adapting Psychological and Educational Tests for Cross-Cultural Assessment (pp. 3–38). Mahwah, NJ: Erlbaum.2004). Australian data and psychometric properties of the Strengths and Difficulties Questionnaire. Australian and New Zealand Journal of Psychiatry, 38, 644–651. doi: 10.1111/j.1440-1614.2004.01427.x
(2012). Exploratory bi-factor analysis: The oblique case. Psychometrika, 77, 442–454. doi: 10.1007/s11336-012-9269-1
(2013). Psychometric properties of the parent-rated SDQ in preschoolers. European Journal of Psychological Assessment, 29, 96–104. doi: 10.1027/1015-5759/a000129
(2013). The bifactor model of the Strengths and Difficulties Questionnaire. European Journal of Psychological Assessment, 29, 299–307. doi: 10.1027/1015-5759/a000160
(1991). Diagnostic conundrum of oppositional defiant disorder and conduct disorder. Journal of Abnormal Psychology, 100, 379–390.
(2012). Testing competing models of the Strengths and Difficulties Questionnaire’s (SDQ’s) factor structure for the parent-informant instrument. Personality and Individual Differences, 52, 882–887. doi: 10.1016/j.paid.2012.02.011
(2012). Mplus User’s Guide (7th ed.). Los Angeles, CA: Muthén & Muthén. Retrieved from http://www3.udg.edu/fcee/professors/gcoenders/Mplus_User_s_Guide_Version_7.pdf
(2012). Psychometric properties of the Danish Strength and Difficulties Questionnaire: The SDQ assessed for more than 70,000 raters in four different cohorts. PloS One, 7, e32025. doi: 10.1371/journal.pone.0032025
(2007). Examining the structural validity of the Strengths and Difficulties Questionnaire (SDQ) in a U.S. sample of custodial grandmothers.. Psychological Assessment, 19, 189–198. doi: 10.1037/1040-3590.19.2.189
(2010). The German Strengths and Difficulties Questionnaire (SDQ): Validity of the teacher version for preschoolers. European Journal of Psychological Assessment, 26, 256–262. doi: 10.1027/1015-5759/a000034
(2014). R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing Retrieved from http://www.R-project.org
. (2010). Bifactor models and rotations: Exploring the extent to which multidimensional data yield univocal scale scores. Journal of Personality Assessment, 92, 544–559. doi: 10.1080/00223891.2010.496477
(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. doi: 10.1037/a0029315
(2012). The Strength and Difficulties Questionnaire: Russian validation of the teacher version and comparison of teacher and student reports. Journal of Adolescence, 35, 87–96. doi: 10.1016/j.adolescence.2011.06.003
(2012). Determining the number of factors to retain in an exploratory factor analysis using comparison data of known factorial structure. Psychological Assessment, 24, 282–292. doi: 10.1037/a0025697
(2009). On the use, the misuse, and the very limited usefulness of Cronbach’s alpha. Psychometrika, 74, 107–120. doi: 10.1007/s11336-008-9101-0
(2014). The Circumplex of Personality Metatraits: A synthesizing model of personality based on the Big Five. Review of General Psychology, 18, 273–286. doi: 10.1037/gpr0000017
(2013). Behavioral assessment of Japanese children with epilepsy using SDQ (Strengths and Difficulties Questionnaire). Brain & Development, 35, 81–86. doi: 10.1016/j.braindev.2012.03.008
(2008). Construct validity of the five-factor Strengths and Difficulties Questionnaire (SDQ) in pre-, early, and late adolescence. Journal of Child Psychology and Psychiatry, 49, 1304–1312. doi: 10.1111/j.1469-7610.2008.01942.x
(2006). Strengths and Difficulties Questionnaire: Research and clinical applications. Current Opinion in Psychiatry, 19, 367–372. doi: 10.1097/01.yco.0000228755.72366.05
(2004). Normative data and scale properties of the German parent SDQ. European Child & Adolescent Psychiatry, 13, 3–10. doi: 10.1007/s00787-004-2002-6
(