Table 4.

Group differences on the LCAS^a

	CURE students		Traditional students
	Mean	SD	Mean	SD	Welch df	t	p	d	Possible range of scores
Collaboration scale	21.11	3.20	20.87	4.02	128.06	0.40	>0.05	0.07	6–24
Discovery scale	24.35	4.04	20.77	5.82	104.37	3.64	<0.001	0.71	5–30
Iteration scale	28.71	4.15	26.53	7.00	95.91	2.47	<0.05	0.39	6–36
LCAS total score	75.10	8.67	68.15	14.76	85.70	3.05	<0.01	0.13	17–90

^aOnly student responses with complete cases on each scale were used. LCAS total score n = 115 (60 CURE students, 55 traditional lab course students). Collaboration n = 141 (73 CURE students, 68 traditional lab course students). Discovery and relevance n = 133 (72 CURE students, 61 traditional lab course students). Iteration n = 134 (72 CURE students, 62 traditional lab course students). Welch’s df adjustment was made because the assumption of homogeneity of variance was not met.