Table 2.

Descriptive statistics for both full versions of the MDPQ and CPQ.

		Young		Middle-aged		Older
		Mean	SD	Mean	SD	Mean	SD
Mobile device	Mobile device basics	4.75	0.41	4.29	0.89	2.10	1.30
	Communication	4.48	0.76	3.73	1.32	1.62	1.20
	Data and file storage	4.36	0.92	3.42	1.50	1.44	1.02
	Internet	4.60	0.70	3.91	1.31	1.65	1.21
	Calendar	4.32	1.20	3.54	1.54	1.40	1.04
	Entertainment	4.52	0.75	3.63	1.36	1.59	1.11
	Privacy	4.37	0.81	3.50	1.33	1.57	1.09
	Troubleshooting and software management	4.60	0.70	3.78	1.34	1.63	1.17
Computer	Computer basics	4.69	0.46	4.12	1.35	1.90	1.42
	Printing	4.49	0.74	4.08	1.39	1.78	1.36
	Communication	4.75	0.49	4.03	1.36	1.71	1.25
	Internet	4.83	0.49	4.19	1.38	1.75	1.24
	Calendar	3.71	1.74	3.26	1.71	1.29	0.80
	Entertainment	4.70	0.64	3.79	1.47	1.58	1.13
Mobile device proficiency		36.02	5.01	29.80	9.63	13.13	8.86
Computer proficiency		27.17	3.40	23.47	7.85	10.69	7.49