Table 3.

Scores of adolescent marijuana users and Non-users on cognitive measures.

	Group
	Non-users n = 48	Marijuana Users n = 45
Cognitive Domain/Testing Instruments	Mean (SD)	Mean (SD)	t	df	p-value
Attention
RVP Total Correct Identifications	16.7 (4.5)	15.6 (4.4)	1.6	91	.111
IMT Correct Detections	83.7 (8.8)	78.4 (10.8)	2.6	91	.011
Memory
B-P Total Recall	32.6 (8.7)	25.1 (8.2)	4.3	91	.000
BSRT Total Recall	121.2 (15.1)	112.5 (18.2)	2.5	91	.014
BSRT CLTR	90.7 (36.1)	79.0 (35.8)	1.6	91	.121
Decision Making
ID/ED Total Errors (Adj.)	25.3 (21.6)	37.5 (22.0)	2.7	91	.008
IGT Total Difference Score	−5.9 (27.4)	−8.9 (22.1)	.59	91	.559
Impulsivity
IMT Commission Errors	38.9 (12.4)	36.6 (13.7)	.86	91	.395
GoStop Inhibition Failures-150 ms	5.0 (3.5)	6.5 (4.1)	1.9	91	.058
TCIP Total Short Responses	9.7 (11.0)	19.2 (15.2)	3.5	91	.001
SKIP Total Responses	438.2 (1034.4)	249.5 (584.9)	1.1	91	.286
General Intellectual Ability
WASI Full-Scale Score	100.1 (13.9)	95.4 (10.5)	1.9	91	.066