Table 2. Score for anxiety before and after NFB measured by Beck Anxiety Inventory.

	LSD Test; Variable: Beck Anxiety Inventory. Marked differences are significant p<0.050000
Condition of measurement	(1) Before NFB	(2) Immediately after NFB	(3) 1 week after NFB	(4) 1 month after NFB
	M = 32.500	M = 0.0000	M = 19.750	M = 18.500
Results	N = 8	Not measured	N = 8	N = 8
	M = 32.500		M = 19.750	M = 18.500
			P = 0.014910	P = 0.008334

The following table depicts p values for difference between pre-to-post NFB data for score for Beck Anxiety Inventory. Abbreviation LSD stands for Least Significance Difference. M stands for mean value. N indicates number of tested participants for the particular variable. P stands for p value. Numbers in the brackets mean the following: (1) means data before NFB, (2) means data immediately after NFB, (3) means data 1 week after NFB and (4) means data after 1 month after NFB.