[Retracted] Stress-Relieving Video Game and Its Effects: A POMS Case Study

Table 8

Calculation of standard deviation (before and after).

	SD (before)		SD (after)
N
1	62	3844	44	1936
2	132	17424	55	3025
3	105	11025	86	7396
4	100	10000	66	4356
5	101	10201	98	9604
6	84	7056	47	2209
7	124	15376	49	2401
8	133	17689	90	8100
9	76	5776	49	2401
10	102	10404	19	361
11	95	9025	67	4489
12	44	1936	33	1089
13	94	8836	83	6889
14	74	5476	14	196
15	121	14641	28	784
16	76	5776	21	441
17	102	10404	6	36
18	91	8281	39	1521
19	104	10816	26	676
20	78	6084	11	121
21	62	3844	22	484
22	36	1296	9	81
23	40	1600	20	400
24	29	841	26	676
25	63	3969	32	1024
26	67	4489	19	361
27	79	6241	55	3025
28	61	3721	14	196
29	89	7921	70	4900
30	53	2809	46	2116
	= (2477) 2 = 6135529	= 226,801, S = ±27.71  = ±27.25	= (1244) 2 = 1547536	= 71294 S = ±26.06  = 25.63