Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users

BMC Psychiatry

Table 3 Correlation matrix: convergent validity and inter-item matrix of the Severity of Dependence for Khat (SDS-Khat) in polysubstance users

	SDS-1	SDS-2	SDS-3	SDS-4	SDS-5	SDS-total
SDS-1		.23^**	.17^*	.17^*	.09	.55^*
SDS-2			.19^*	.16^*	.20^**	.56^*
SDS-3				.23^**	.17^*	.55^*
SDS-4					.38^**	.65^*
SDS-5						.56^*
MC-total	−.20^**	−.06	−.10	−.31^**	.00	−.26^**
mm-total	−.19^*	−.08	−.09	−.25^**	.02	−.22^**
mc-total	−.20^**	−.06	−.07	−.34^**	−.01	−.28^**

Meta-cognition was assessed by tool using questionnaire [13]
SDS-khat Severity of dependence on khat
SDS-1 to SDS-5 items of the SDS-Khat scale, MC-total Meta-cognition total score, mm-total meta-memory sub-scale of the meta-cognition tool, mc-total meta-concentration sub-scale of the meta-cognition tool
^*p < 0.05; ^**p < 0.01

ISSN: 1471-244X