Table 2b.

Association Between Planning and Behavior--Time of Visits

	Dependent Variable: Indicator for Visited on that Day (Columns (1) and (2)) or that Day and Hour (Columns (3) and (4))
Independent Variables	(1)	(2)	(3)	(4)
Planned visit on that day indicator	0.21***	0.16***
	(0.02)	(0.01)
Fraction of days visiting gym on that same day during 2 week pre-intervention period		0.34***
		(0.03)
Planned visit on that day and hour indicator			0.09***	0.06***
			(0.01)	(0.01)
Fraction of days visiting gym on that same day and hour during 2 week pre-intervention period				0.27***
				(0.02)
Level of observation	Person × day	Person × day	Person × hour × day	Person × hour × day
Observations	5,694	5,694	101,178	101,178
Adjusted R-squared	0.13	0.20	0.02	0.07
Mean of dependent variable	0.18	0.18	0.01	0.01

^***p<0.01

^**p<0.05

^*p<0.1. Standard errors are clustered by individual. Each column represents a separate regression. Planned visit on that day indicator equals one if subject planned to go to the gym on that date and 0 otherwise. Planned visit on that day and hour indicator equals one if subject planned to go to the gym on that date at that hour and 0 otherwise. Fraction of days visiting gym on that same day in 2 week pre-intervention period takes on values of 0 (none), 0.5 (half), or 1 (all). Fraction of days visiting gym on that same day and hour in 2 week pre-intervention period takes on values of 0 (none), 0.5 (half), or 1 (all). All regressions include indicator variables for age, age missing, gender, university affiliation, student, and membership type. Person by day regressions include observations on 438 individuals over 13 days; person by hour regressions include 438 individuals over 231 hours.