Table 2.

Properties of the 18 selected harm items with respect to the full checklist.

Category	Item	PR (%)	FN (%)	STC (r)	ITC (r)
Financial	Reduction of my available spending money	6.3	6.23	0.694	0.694
Financial	Less spending on recreational expenses such as eating out, going to movies or other entertainment	1.9	5.39	0.742	0.394
Financial	Reduction of my savings	2.9	4.32	0.800	0.486
Work/Study	Used my work or study time to gamble	0.5	3.82	0.801	0.216
Work/Study	Reduced performance at work or study	1.0	3.77	0.825	0.281
Work/Study	Used my work or study resources to gamble	0.2	3.72	0.828	0.130
Health	Loss of sleep due to spending time gambling	0.8	3.58	0.831	0.267
Health	Increased my use of tobacco	0.7	3.53	0.838	0.246
Health	Increased experience of depression	0.8	3.53	0.841	0.261
Emotional/Psychological	Had regrets that made me feel sorry about my gambling	1.4	3.20	0.858	0.346
Emotional/Psychological	Felt like a failure	5.0	1.26	0.944	0.627
Emotional/Psychological	Felt ashamed of my gambling	2.1	0.76	0.966	0.411
Relationships	Spent less time with people I care about	0.8	0.64	0.971	0.264
Relationships	Spent less time attending social events	0.5	0.62	0.972	0.218
Relationships	Experienced greater tension in my relationships	0.4	0.55	0.976	0.184
Social deviance	Reduced my contribution to community obligations	0.3	0.52	0.977	0.160
Social deviance	Outcast from community due to involvement with gambling	0.3	0.52	0.977	0.171
Social deviance	Promised to pay back money without genuinely intending to do so	0.3	0.52	0.977	0.151

PR percent positive responses, FN false negatives (incremental), STC subscale to 72-item total correlation (Spearman), ITC item 72-item total correlation.