Table 5.

Principal Components Analysis of the MDPQ (Older Adult Data).

Question	Factor
	1	2	3	4	5	6
1a. Turn the device on and off	.853
1b. Charge the device when the battery is low	.835
1c. Navigate onscreen menus using the touchscreen	.834
1d. Use the onscreen keyboard to type	.824
1e. Copy and paste text using the touchscreen		.646
1f. Adjust the volume of the device	.787
1i. Connect to a WiFi network	.626
2a. Open emails	.739
2b. Send emails	.718
2e. View pictures sent by email	.636
2f. Send pictures by email
2h. Use instant-messaging (e.g., AIM, Yahoo Messenger, MSN Messenger)		.678
2i. Use video-messaging (e.g., Skype, Google Hangout, FaceTime)		.645
3a. Transfer information (files such as music, pictures, documents) on my portable device to my computer		.754
3b. Transfer information (files such as music, pictures, documents) on my computer to my portable device		.765
3c. Store information with a service that lets me view my files from anywhere (e.g., Dropbox, Google Drive, Microsoft Onedrive)		.635
4a. Use search engines (e.g., Google, Bing)	.662
4b. Find information about local community resources on the Internet			.625
4c. Find information about my hobbies and interests on the Internet			.668
4d. Find health information on the Internet			.696
4f. Make purchases on the Internet			.722
5a. Enter events and appointments into a calendar					.784
5b. Check the date and time of upcoming and prior appointments					.813
5c. Set up alerts to remind me of events and appointments					.821
6b. Watch movies and videos						.713
6c. Listen to music						.608
6e. Take pictures and video	.674
7a. Set up a password to lock/unlock the device				.633
7c. Erase all Internet browsing history and temporary files				.668
8d. Delete games and other applications				.618

Note. Only loadings >.60 are depicted. MDPQ = Mobile Device Proficiency Questionnaire.