Table 2.

Mean scores of self-reported knowledge, attitudes, and learning motivation and engagement in participants who chose normal or dark play.

Characteristic	Total (n=160)	Normal play (n=89)	Dark play (n=71)	P valuea
Self-reported knowledge (possible score range, 0-10), mean (SD)	5.1 (1.9)	4.9 (1.9)	5.3 (1.8)	.23
Attitude (possible score range, 19-133), mean (SD)	90.8 (10.7)	91.1 (11.4)	90.4 (9.8)	.66
Learning motivation and engagement (possible score range, 9-45), mean (SD)	35.0 (4.0)	35.3 (4.2)	34.6 (3.9)	.35

^aData compared using independent samples t tests.