Table 2. Mean comparisons of Tolerance of ambiguity and Perfectionism by age, gender and year of study (N = 808).

	Tolerance of Ambiguity		Perfectionism - Concern over mistakes		Perfectionism - High Standards
	Mean	SD	Mean	SD	Mean	SD
Age
Under 25 years	42.85	7.14	20.50	6.02	18.14	3.93
25 or older	44.42	8.09	20.78	6.36	18.93	3.67
	t = 2.90, p = 0.004 eta-sq = 0.01		t = 0.63, p = 0.530 eta-sq = 0.00		t = 2.89, p = 0.004 eta-sq = 0.01
Gender
Male	44.23	7.40	20.08	6.01	18.26	3.90
Female	42.74	7.73	21.28	6.25	18.71	3.77
	t = 2.78, p = 0.006 eta-sq = 0.01		t = 2.77, p = 0.006 eta-sq = 0.01		t = 1.64, p = 0.101 eta-sq = 0.00
Year medical school
Year 1	43.82	7.64	20.38	5.92	18.54	3.93
Year 2	43.67	7.35	21.10	6.96	18.04	3.36
Year 3	42.04	7.15	20.81	5.92	18.43	3.84
Year 4	42.14	7.25	22.23	7.24	18.29	3.62
	F = 1.93, p = 0.123 eta-sq = 0.01		F = 1.99, p = 0.114 eta-sq = 0.01		F = 0.43, p = 0.729 eta-sq = 0.00