Table 4. Result of two sample t-test

Data 1	Data 2	t	dt	p-value
Simulator course experience	Total score of SA	1.16	19	0.261
	Total score of NASA-TLX	-0.94	19	0.359
Total score of SA	Aerodynamics	-0.45	19	0.658
	Aircraft propulsion system	1.99	19	0.061
	ATC	-0.45	19	0.658
	Aircraft systems and equipment	0.15	19	0.880
	Understanding of flight	0.45	19	0.658
Total score of NASA-TLX	Aviation weather	0.56	19	0.583
	Aeronautical information and procedures	1.68	19	0.107
	Basic Air navigation	2.84	19	0.010**
	Instrument flight	1.89	19	0.074
	Instrument flight practice	0.45	19	0.658
Basic Air Navigationsubject	Aerodynamics	0.83	19	0.414
	Aircraft propulsion system	0.15	19	0.879
	ATC	0.83	19	0.414
	Aircraft systems and equipment	1.08	19	0.292
	Understanding of flight	-1.11	19	0.283
	Aviation weather	-1.03	19	0.318
	Aeronautical information and procedures	-0.57	19	0.578
	Basic air navigation	-0.04	19	0.969
	Instrument flight	-0.34	19	0.740
	Instrument flight practice	-0.83	19	0.414
	Spatial/temporal SA	0.57	19	0.574
	System SA	1.61	19	0.123
	Geographical SA	2.58	19	0.018*
	Environmental SA	1.87	19	0.076

p<.05,
p<.01.