Table A1.

Summary statistics.

Variable	Obs	Mean	Std. Dev.	Min	Max
classroom Learning	1415	0,484,099	0,499,924	0	1
hybrid learning	1415	0,434,629	0,495,884	0	1
online learning	1415	0,081,272	0,273,349	0	1
Effectiveness
not effective	1415	0,323,251	0,169,506	0	1
moderately effective	1415	0,280,565	0,449,434	0	1
effective	1415	0,399,293	0,489,926	0	1
psych_ind	1415	0,013,692	1,007,849	−0,73,317	224,653
worry_about_COVID 19	1415	594,629	2,318,659	0	10
university_platforms	1415	0,674,205	0,468,837	0	1
Zoom_platform	1415	0,689,046	0,463,048	0	1
professor_important	1415	3,024,028	0,937,655	0	4
internet_poor	1415	0,183,746	0,387,414	0	1
home_techn_poor	1415	0,050,177	0,218,387	0	1
time_poor	1415	0,319,435	0,466,422	0	1
space_poor	1415	0,226,148	0,418,484	0	1
cost_low	1415	0,387,986	0,487,464	0	1
academic_year	1415	2,036,749	1,009,884	1	3
residence_area	1415	0,641,696	0,479,672	0	1
gender	1415	0,225,442	0,418,021	0	1
Universities
ASE	1415	0,203,534	0,402,768	0	1
UAIC	1415	0,334,276	0,471,903	0	1
UBB	1415	0,127,915	0,334,113	0	1
UVT	1415	0,196,466	0,397,466	0	1
ULB	1415	0,093,993	0,291,922	0	1
UTB	1415	0,031,095	0,173,637	0	1
other	1415	0,012,721	0,112,107	0	1