Validity of the Severity of Dependence Scale (SDS) Construct Applying the Item Response Theory to a Non-Clinical Sample of Heroin Users

González‐Sáiz, Francisco; Lozano, Óscar; Ballesta, Rosario; Silva, Teresa C.; Brugal, M. Teresa; Bilbao, Izaskun; Barrio, Gregorio; Domingo‐Salvany, Antònia; Bravo, María J.; Fuente, Luís de la; ItÍnere, Grupo del Proyecto

doi:10.1080/10826080701801543

Cited by 15 publications

(9 citation statements)

References 21 publications

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“…The SDS is a short, easily administered instrument for measuring psychological components of dependence and is recognised as a robust screening tool across a variety of substances in diverse populations (Gossop et al, ; Gossop, Best, et al, ). In keeping with studies of similar substances (Ferri, 2000; Gonzalez‐Saiz et al, ; Gossop et al, ; Kaye & Darke, ; Lawrinson et al, ), this study clearly supports the use of the SDS to screen for problems related to khat use.…”

Section: Discussionsupporting

confidence: 86%

Using the Severity of Dependence Scale to screen for DSM‐5 khat use disorder

Duresso

Matthews

Ferguson

et al. 2018

Human Psychopharmacology

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Although khat is a mild stimulant, there is clear evidence that some consumers are both concerned with their use and experience problems associated with their use. Consistent with its application for other drugs, the SDS is a brief and simple screening tool that appears to validly identify individuals experiencing a khat use disorder syndrome and experiencing high rates of adverse consequences in association with use.

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Section: Discussionsupporting

confidence: 86%

Using the Severity of Dependence Scale to screen for DSM‐5 khat use disorder

Duresso

Matthews

Ferguson

et al. 2018

Human Psychopharmacology

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“…Even though the SDS does not entirely cover the construct of substance dependence [11] , evidence on the usefulness of this scale as an instrument for substance dependence screening according to DSM diagnostic criteria (criteria validity) has been provided [12][13][14][15] . These studies have established the cut-off scores that discriminate best between the presence or absence of dependence on amphetamines, benzodiazepines, cocaine and cannabis.…”

Section: Introductionmentioning

confidence: 99%

Severity of Dependence Scale as a Diagnostic Tool for Heroin and Cocaine Dependence

et al. 2009

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Aims: Our aim was to further assess the Severity of Dependence Scale (SDS) validity and to identify the cut-off score for a DSM-IV diagnosis of heroin and cocaine dependence through a cross-sectional survey in Barcelona, Spain. Methods: The Psychiatric Research Interview for Substance and Mental Disorders (PRISM) was used as the gold standard. 146 young (18–30 years old) heroin users were recruited from outside the healthcare context, 135 of whom were also current cocaine users. SDS scores were correlated to quantity, frequency and length of drug use. Results: The SDS cut-off point at which there was optimal discrimination of a DSM-IV diagnosis presence was found to be 3 (i.e., a score of 3 or more) for heroin dependence and 4 for cocaine dependence. Conclusions: The study gives further support to SDS dimensional properties and to its validity for rapid assessment of current heroin and cocaine dependence.

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“…Moreover, it is senseless to refer to test reliability where IRT is concerned, as measurement accuracy is estimated specifically (standard error of measurement) for each ability level in the variable. Other advantages over CTT include the additivity of items, and interval level measurement [20][21][22][23][24][25] .…”

mentioning

confidence: 99%

Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

2009

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A test has recently been designed for the measurement of health-related quality of life in drug abusers (Health-Related Quality of Life for Drug Abusers Test – HRQOLDA Test) based on the bi-axial concept of addiction. The aim of this work is to find out the metric properties of the test by applying the polytomous Rasch Rating Scale Model (RSM). The HRQOLDA Test was given to a sample of 358 drug abusers who began treatment in a Therapeutic Community. The Rating Scale Model (RSM) and the WINSTEPS programme were used for the analysis of its metric properties. The results shown here are an overall fit of data to the model. The items are adequately distributed over the HRQOL continuum. The response categories appear to be in order except for the category ‘a little’. The test region which measures most accurately, and is most informative, is in the middle of the continuum. The test properties studied confirm the adequacy of the RSM for accurate measurement of HRQOL in drug abusers, providing a test for measuring this specific construct in this population.

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Validity of the Severity of Dependence Scale (SDS) Construct Applying the Item Response Theory to a Non-Clinical Sample of Heroin Users

Abstract: The results show unidimensional structure of the SDS scale. Item calibration shows they are distributed along the continuum, which must be taken into account when calculating total scores. The study's limitations are noted.

Cited by 15 publications

References 21 publications

Using the Severity of Dependence Scale to screen for DSM‐5 khat use disorder

Using the Severity of Dependence Scale to screen for DSM‐5 khat use disorder

Severity of Dependence Scale as a Diagnostic Tool for Heroin and Cocaine Dependence

Development of a Specific Health-Related Quality of Life Test in Drug Abusers Using the Rasch Rating Scale Model

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