TABLE 4.

Correlation matrix relating constructs

	5†	7‡	9§	10	11	12	13	14	15	16	17	18	19*	20†
1-Ladder	x	−.46	x	x	.52	.54	−.57	−.46	x	x	x	−.70	x	x
2-Negative psychological/somatic effects*	x	−.47	x	x	.57	.45	x	x	x	x	x	−.55	.51	x
3-Energy/improved health*	.58	x	x	x	x	x	x	.45	x	x	x	.46	x	.48
4-Improved sociability*	x	x	x	.45	x	x	x	x	x	x	x	x	x	x
5-Psychological/health benefits†	-	x	x	x	x	x	x	x	x	x	x	x	x	.50
6-Enhance party experience†	x	x	x	x	x	x	x	−.46	x	x	x	x	x	x
7-Legalization/free access‡	R	–	x	x	−.51	−.51	x	.50	x	x	x	.55	x	x
8-General malaise/§ cognitive symptoms	x	x	.49	x	x	x	.52	x	x	x	x	.48	x	x
9-Restlessness/agitation§	R	R	–	x	x	x	.54	x	x	x	x	.45	x	x
10-AveDBP	R	R	R	–	x	x	−.57	x	x	x	x	x	x	x
11-AveDBC	R	R	R	R	–	.65	−.56	x	x	x	x	−.61	x	x
12-SIP-Tot	R	R	R	R	R	–	−.72	−.61	−.53	x	.52	−.70	x	x
13-DepSx-LT	R	R	R	R	R	R	–	.44	x	−.62	−.47	.62	x	x
14-DepSx-12M	R	R	R	R	R	R	R	–	.51	−.49	−.71	.67	x	x
15-Confidence	R	R	R	R	R	R	R	R	-	x	−.49	x	x	x
16-Freq Use-LT	R	R	R	R	R	R	R	R	x	-	.64	x	x	x

^*GHB/analog Expectancy Questionnaire scale;

^†Reasons for GHB/analog Use scale;

^‡GHB/analog Opinions/Knowledge scale;

^§Long-term Withdrawal Symptoms scale; AveDBP = Average Pros-Decisional Balances; AveDBC = Average Cons-Decisional Balances; SIP-Tot = Short Inventory of Problems Total score; DepSx-LT = Dependence Symptom Count-Lifetime; DepSx-12M = Dependence Symptom Count-Last 12 Months; #15 = Brief Situational Confidence Questionnaire Score; #16 = Most Frequent Use-Lifetime; #17 = Most Frequent Use-Last 12 Months; #18 = Coping Behaviors Questionnaire-Summary score; #19 = Psychomotor Retardation; #20 = Assist Sleep/Medical Opinion; R = Repeated correlation; x = Non-significant; all correlations significant at p ≤ .001 level; average N = 43.