Table 6.

Kruskal-Wallis test and bivariate Spearman's Rho correlation test.

	N	Mean Rank	Chi-Square	df	Sig. [2-tailed]	Rho	Sig. [2-tailed]
Education	Low	126	191.80	58.423	2	0.000	0.360**	0.000
	Medium	250	246.84
	High	124	317.52
	Total	500
Highest Ranked Attained Occupation, Complexity	Low	106	129.88	66.132	2	0.000	0.409**	0.000
	Medium	200	200.43
	High	75	252.24
	Total	500
Current Physical Activity: Total MET	Low	98	143.83	67.020	2	0.000	0.293**	0.000
	Medium	202	200.89
	High	111	270.20
	Total	411
Gaming Activity: Current	Low	123	180.62	85.512	2	0.000	0.393**	0.000
	Medium	248	240.02
	High	118	322.58
	Total	489
Gaming Activity: Previous	Low	122	195.26	50.430	2	0.000	0.323**	0.000
	Medium	248	237.2
	High	118	310.62
	Total	488
Other Hobbies: Current	Low	122	215.11	28.518	2	0.000	0.234**	0.000
	Medium	248	242.76
	High	118	278.54
	Total	488
Other Hobbies: Previous	Low	123	221.33	8.584	2	0.014	0.116*	0.01
	Medium	248	248.87
	High	118	261.55
	Total	489
Leisure Activity: Current	Low	122	169.59	98.902	2	0.000	0.418**	0.000
	Medium	248	239.94
	High	118	331.53
	Total	488
Leisure Activity: Previous	Low	188.02	169.59	45.923	2	0.000	0.307**	0.000
	Medium	242.82	239.94
	High	306.42	331.53
	Total	488
Social Inte-gration	Low	122	237.00	4.994	2	0.082	0.102*	0.024
	Medium	247	235.55
	High	117	267.05
	Total	486
Social Network Function	Low	50	266.32	1.32	2	0.507	0.052	0.348
	Medium	180	232.03
	High	101	250.05
	Total	331

Grouping variables: Global cognitive function (low, medium, high) and cognitive reserve indicators.

^**Correlation is significant at the 0.01 level (2-tailed).

^*Correlation is significant at the 0.05 level (2-tailed).

Z, z-score; Sig, significance level (p-value); Rho, Spearman's rank correlation coefficient.