Groups of eight students asked fewer questions ( 0.5 ( 0.0 - 1.0 ) vs. 3.0 ( 2.0 - 4.0 ) , p < .001 ) , had less hands-on time ( 2:16 min ( 1:15 - 4:55 min ) vs. 4:07 min ( 2:54 - 5:52 min ) , p = .02 ) , conducted more unrelated conversations ( 17.05.1 and 2.91.7 , p < 0.001 ) and had lower self-assessments than groups of three students per tutor ( 7.0 ( 6.1 - 9.0 ) and 8.2 ( 7.2 - 9.0 ) , p = .03 ) .