TY - JOUR
AU1 - Keller, Ferdinand
AU2 - Langmeyer, Alexandra N.
AB - The Strengths and Difficulties Questionnaire (SDQ)assesses five subscales for measuring child adjustment. In the present study, anitem response theory approach was used to analyze the parent version of the SDQsubscales and the total difficulties score (TDS), which is obtained by summingup the scores of the four problem subscales. Analyses are based on two datasets: The German Family Panel “Panel Analysis of Intimate Relationshipsand Family Dynamics (pairfam, N = 1,078)”and the survey “Growing up in Germany” (Aufwachsen in Deutschland:Alltagswelten; AID:A, N = 1,346). Partial creditand generalized partial credit models were estimated for each subscale and abifactor model was applied to the TDS. The results showed satisfyingpsychometric properties in both samples for each of the five subscales, exceptfor the “Hyperactivity/Inattention” subscales which seemed to havea two-dimensional structure. Item discrimination and category thresholdparameters were broadly comparable between the samples. According to thebifactor models, there is evidence for multidimensionality in the TDS, but thegeneral factor was strong. Thus, the TDS can be treated as essentiallyunidimensional, although some subscales may be of additional value.
TI - An Item Response Theory Analysis of the Strengths and Difficulties Questionnaire (SDQ)
JF - European Journal of Psychological Assessment
DO - 10.1027/1015-5759/a000390
DA - 2019-04-07
UR - https://www.deepdyve.com/lp/american-psychological-association/an-item-response-theory-analysis-of-the-strengths-and-difficulties-6N6hBWpEyF
SP - 266
EP - 279
VL - 35
IS - 2
DP - DeepDyve
ER -