Table 1.

Means and standard deviations for younger and older groups for risk perception and worry for each HRI hazard along with risk attitudes, ratings for control, past accidents, overall risk perceptions, efficacy appraisals, and behavioural intentions to remove hazards.

Variable Type	Specific Measure	Young		Old		Effect Size
		Mean	SD	Mean	SD	d
Risk Attitudes	Risk attitude-recreational	2.68	0.80	1.43	0.61	1.76 ***
	Risk attitude-health & safety	2.72	0.50	1.52	0.49	2.42 ***
	Risk attitude-social	3.31	0.41	2.53	0.68	1.39 ***
	General attitude to risk	8.49	1.52	5.44	1.37	2.11 ***
HRI Risk Domains	Cognitive risk perception:
	Stairs	2.83	0.95	3.23	1.39	0.34
	Rug	2.63	1.11	3.26	0.91	0.62 **
	Nail	2.71	0.89	3.26	1.16	0.53 *
	Spill	2.80	0.87	3.46	1.10	0.67 **
	Tea	3.06	0.97	3.56	1.21	0.46 *
	Electricity	2.71	0.89	2.74	1.31	0.03
	Reaching on step ladder	2.86	0.85	3.38	1.25	0.49 *
	Pan handles	2.69	0.76	3.05	1.28	0.34
HRI Risk Domains	Affective risk perception:
	Stairs	2.23	0.97	3.41	1.35	1.00 ***
	Rug	1.86	0.85	3.36	1.14	1.49 ***
	Nail	2.57	1.14	3.05	1.28	0.40
	Spill	2.40	1.09	3.67	1.18	1.12 ***
	Tea	2.80	0.87	3.62	1.11	0.82 ***
	Electricity	3.17	1.04	3.26	1.37	0.07
	Reaching on a step ladder	2.74	1.12	3.69	1.22	0.81 ***
	Pan handles	2.71	1.02	3.51	1.50	0.62 **
Control	HRI Personal control	3.94	0.42	3.59	0.75	0.58 *
Accident Experience	Accidents in last 12 months	2.80	2.46	0.54	0.91	1.22 ***
	Major injuries in last 4 years	0.63	0.91	0.13	0.41	0.71 **
Risk Perception	Risk compared with own age (comparative optimism)	2.79	0.53	3.24	0.73	0.71 **
	Risk compared with other age	2.33	0.48	3.53	0.7	2.00 ***
	Closeness of referent weighting (other age–own age)	−0.45	0.51	0.28	0.57	1.35 ***
Efficacy Appraisals & Intentions	Self-efficacy	3.00	0.69	3.13	0.56	0.20
	Response-efficacy	3.50	0.89	4.21	0.73	0.87 ***
	Behavioural Intentions	2.42	0.76	3.08	0.62	0.95 ***

Groups differ significantly at * p < 0.05; ** p < 0.01; *** p < 0.001 (all two-tailed).