SDQ Psychometric Properties & Reliability/Validity Clause Samples

SDQ Psychometric Properties & Reliability/Validity. The SDQ was originally developed in Britain and was extensively evaluated in various clinical and community settings within the United Kingdom. In one of the earliest validation studies, the comparative validity of the SDQ teacher screener was tested against the ▇▇▇▇▇▇ Questionnaires from which the instrument was derived in a sample of 403 children aged 4-16 seen at a dental and psychiatric clinic in the U.K. Receiver operating characteristic curves were examined to determine how well the two questionnaires distinguished between high and low risk samples (children seen in the psychiatric clinic versus children seen in the dental clinic), and the correlation between the SDQ and ▇▇▇▇▇▇ Questionnaires were calculated. Similar areas under the curve were detected for both questionnaires (0.85 for the SDQ versus 0.84 for the ▇▇▇▇▇▇ Questionnaires), indicating a similar ability to distinguish between high and low risk samples. Agreement between the two questionnaires was also high with a ▇▇▇▇▇▇▇ correlation coefficient of 0.92 (▇▇▇▇▇▇▇, 1997). Similarly, a later study conducted in 1999 by ▇▇▇▇▇▇▇ & ▇▇▇▇▇ indicated comparative validity between the SDQ and the Child Behavior Checklist in a sample of 132 children aged 4-7 in Britain. In addition to obtaining similar results for the two questionnaires in a receiver operating curve analysis, the study indicated that the two questionnaires performed similarly in measuring externalizing behaviors and internalizing behaviors (▇▇▇▇▇▇▇, 1999). Other studies conducted in Britain have yielded similar results (▇▇▇▇▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇, & ▇▇▇▇▇▇▇, 2000; ▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇, 2011). Further, studies conducted in Britain have pointed to the predictive power of the SDQ in detecting mental health diagnoses in youth. In a study conducted in Britain with 1,025 children living residentially or in ▇▇▇▇▇▇ care, ▇▇▇▇▇▇▇, ▇▇▇▇, ▇▇▇▇▇▇, and ▇▇▇▇▇▇▇ (2004) measured sensitivities of 82.7% and 97.7% for residential and ▇▇▇▇▇▇ care children, respectively, when comparing SDQ subscale and total difficulties scores with the Development and Well-Being Assessment. On the other hand, some studies conducted in Britain have yielded lower levels of validity. In a study by ▇▇▇▇▇▇▇ (2001), sensitivity was fairly low at 43% with a similarly low positive predictive value of 44%. Since its original use in Britain, the SDQ has been widely used and evaluated in studies that were conducted in diverse communities and clinical settings across the world. In ...