Table 1.

Characteristics of the whole study group and the Random Split-Half Samples

	All sample (N = 451)	Split Sample 1 (n = 225)	Split Sample 2 (n = 226)	P value
Age mean (SD)	34.1 (11.0)	34.7 (11.5)	33.5(10.3)	0.275
Gender n (%)				0.972
Male	158 (35.0)	79 (35.1)	79 (35.0)
Female	293 (65.0)	146 (64.9)	147 (65.0)
Educational level n (%)				0.684
Primary	27 (6.0)	12 (5.3)	15 (6.6)
Complementary	76 (16.9)	41 (18.2)	35 (15.5)
Secondary	75 (16.6)	34 (15.1)	41 (18.1)
University	273 (60.5)	138 (61.3)	135 (59.7)

N or n Frequency, % percentage, SD Standard deviation, P value < 0.05 is significant