Table 4.

Differences between pre- and post-test correct responses on the Knowledge Questionnaire of Adolescent Depression for School Staff.

Item	Pre-test correct		Post-test correct		Absolute delta	Relative delta	p
	n	%	n	%
1	130	86	148	97	12	1.1	0.000**
2	103	68	126	83	15	1.2	0.003*
3	111	73	148	97	24	1.3	0.000**
4	99	65	146	96	31	1.5	0.000*
5	135	89	148	97	9	1.1	0.007*
6	114	75	144	95	20	1.3	0.000**
7	53	35	148	97	63	2.8	0.000**
8	65	43	113	74	32	1.7	0.000**
9	58	38	142	93	55	2.4	0.000**
10	130	86	151	99	14	1.2	0.000**
11	130	86	150	99	13	1.2	0.000**
12	136	89	151	99	10	1.1	0.000**
13	99	65	130	86	20	1.3	0.000**
14	127	84	142	93	10	1.1	0.012*
15	51	34	108	71	38	2.1	0.000**
16	135	89	147	97	8	1.1	0.015*
17	142	93	146	96	3	1.0	0.441
18	147	97	149	98	1	1.0	0.723
19	140	92	147	97	5	1.0	0.134
20	124	82	142	93	12	1.2	0.003*
21	103	68	127	84	16	1.2	0.002*
22	90	59	146	96	37	1.6	0.000**
23	40	26	118	78	51	3.0	0.000**
24	62	41	146	96	55	2.4	0.000**
25	103	68	127	84	16	1.2	0.002*
26.	121	80	142	93	14	1.2	0.001*

n = 152; p-value: chi-square or Fisher’s exact test (used when the expected values were 5 or less in any cell); * <0.05; ** <0.001.