Table 4.

Main keywords by occurrences and total link strength (2004–2019).

	Keyword	Cluster Colour (see Figure 5)	Occurrences	Total Link Strength
1	cyberbullying	violet	666	1929
2	bullying	pink	408	1778
3	adolescent	red	340	1899
4	Internet	red	256	1227
5	child	red	203	1208
6	cyber bullying	violet	177	513
7	psychology	pink	159	1083
8	social media	violet	154	558
9	major clinical study	yellow	149	881
10	crime victim	orange	138	1042
11	computer crime	violet	116	375
12	student	green	116	781
13	victim	yellow	116	677
14	adolescent behavior	red	113	756
15	adolescence	green	95	427
16	aggression	red	89	481
17	social networking (online)	violet	83	247
18	school	blue	78	530
19	education	green	71	334
20	mental health	pink	70	1662