Table 6.

Results of the t test of mean scores of the 36 measures by grade.

Classification	Participants, n (%)	Minimum score	Maximum score	Mean score (SD)	Freshman P value	Sophomore P value	Junior P value	Senior P value	First-year graduate candidate P value	Second-year graduate candidate P value
Freshman	66	1.000	4.000	1.883 (0.114)	N/Aa	<.001	.24	.08	<.001	<.001
Sophomore	72	1.000	4.000	1.989 (0.092)	<.001	N/A	.004	<.001	.81	<.001
Junior	110	1.000	4.000	1.925 (0.087)	.24	.004	N/A	.001	.01	<.001
Senior	68	1.000	4.000	1.853 (0.108)	.08	<.001	.001	N/A	<.001	<.001
First-year graduate candidate	52	1.000	4.000	1.992 (0.116)	<.001	.81	.001	<.001	N/A	.002
Second-year graduate candidate	45	1.000	4.000	2.069 (0.133)	<.001	<.001	<.001	<.001	.002	N/A

^aN/A: not applicable.