Table 1.

Constructs measured by data collection wave.

	Pre-COVID		COVID
	Time 1	Time 2	Time 3
Constructs	October 2018-March 2019	April-September 2019	April-June 2020	July-September 2020
Substance use outcome
Binge Alcohol consumption	X	X	–	X
Daily Marijuana use	X	X	–	X
Non-prescription drug use	X	X	–	X
Primary independent variables
Depressive symptoms	–	–	X	–
Loneliness	–	–	X	–
Functional social Support	–	–	X	–

Note. X – Time when data were collected for corresponding variable; - Time when data were not collected for corresponding variable.