Table 2.

Self-Reported Sedentary Behavior Measures for 4th-, 8th-, and 11th-Grade Students, School Physical Activity and Nutrition Study (SPAN) Questionnaire, Texas, 2004-2005

4th-Grade Students	κa,b	8th- and 11th-Grade Students	κb,c
Watching television/video movies		Watching television/video movies
Yesterday, how many hours did you watch TV or video movies away from school? (Responses options: I didn't watch TV yesterday, 1 h, 2 h, 3 h, 4 h, 5 h, 6 h or more)	0.82	How many hours per day do you usually watch TV or video movies away from school? (Response options: I don't watch TV or video movies, 1 h, 2 h, 3 h, 4 h, 5 h, 6 h or more)	0.51
Computer/video game playing		Computer/video game playing
How many hours per day do you usually play video games like Nintendo, Sega, Playstation, Xbox, GameBoy or arcade games away from school? (Response options: I don't play video games, 1 h, 2 h, 3 h, 4 h, 5 h, 6 h or more)	0.83	(Same as 4th grade)	0.71

^a Penkilo et al (19).

^b κ statistics based on a test-retest administration of questionnaire on the same day of the survey, with a time interval of ≥2 hours.

^c Hoelscher et al (20).