Table 2.
Number of citations by type of publication (% citations in time interval)
| 1970-74 | 1975-79 | 1980-84 | 1985-89 | 1990-94 | 1995-99 | 2000-4 | 2005-9 | 2010-11 | Total (1970-2011) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Number of citations |
4 |
7 |
14 |
62 |
120 |
212 |
352 |
427 |
219 |
1417 |
| Reviews |
0 (0) |
2 (29) |
1 (7) |
3 (5) |
10 (8) |
19 (9) |
20 (6) |
11 (3) |
5 (2) |
71 (5) |
| Case studies |
0 (0) |
0 (0) |
0 (0) |
10 (16) |
10 (8) |
9 (4) |
12 (3) |
12 (3) |
3 (1) |
31 (2) |
| Validation studies |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
5 (1) |
14 (3) |
12 (5) |
31 (2) |
| Editorials |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1 (0.8) |
2 (0.9) |
4 (1) |
3 (0.7) |
0 (0) |
10 (0.7) |
| Comparative studies* |
0 (0) |
0 (0) |
0 (0) |
11 (18) |
39 (33) |
75 (35) |
78 (22) |
92 (22) |
35 (16) |
330 (23) |
| Randomized controlled trial |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
2 (2) |
2 (0.9) |
1 (0.3) |
7 (2) |
2 (0.9) |
14 (1) |
| Empirical study** | 0 (0) | 0 (0) | 0 (0) | 46 (74) | 65 (54) | 132 (62) | 235 (67) | 275 (64) | 140 (64) | 346 (24) |
* This category of publication is only available in Medline.
** This category of publication is only available in PsycInfo.