Frequencies of Variable Characteristics for Included Studies (n = 96)
| Characteristic | N | % |
|---|---|---|
| Source | ||
| Form of publication | ||
| Unpublished | 24 | 25 |
| Published (peer review) | 72 | 75 |
| Design | ||
| Type of design | ||
| Random | 73 | 76 |
| Nonrandom-matching | 11 | 11 |
| Nonrandom-equivalent | 1 | 1 |
| Nonrandom-different | 7 | 7 |
| No comparison | 4 | 4 |
| Comparison group | ||
| Minimal treatment | 7 | 7 |
| No control group | 7 | 7 |
| No treatment | 16 | 16 |
| Other treatment | 41 | 42 |
| Wait list | 25 | 26 |
| Sample size (tx + ct) | ||
| Under 50 | 61 | 63 |
| 51 to 100 | 14 | 14 |
| 101 to 150 | 1 | 1 |
| 151 and over | 7 | 7 |
| Participants | ||
| Gender mix | ||
| Both | 52 | 54 |
| Female | 8 | 8 |
| Male | 36 | 37 |
| Location of studies | ||
| Australia | 4 | 4 |
| Canada | 5 | 5 |
| Europe | 8 | 8 |
| Japan | 1 | 1 |
| Israel | 1 | 1 |
| United Kingdom | 1 | 1 |
| United States | 76 | 79 |
| Setting of studies | ||
| College or university | 31 | 32 |
| Community treatment | 31 | 32 |
| Correctional facility | 12 | 12 |
| General hospital | 12 | 12 |
| Police academy | 2 | 3 |
| Psychiatric facility | 8 | 8 |
| Delivery of treatment | ||
| Treatment format | ||
| Group | 91 | 94 |
| Individual | 5 | 5 |
| Number of sessions | ||
| 3 or less | 3 | 3 |
| 4 to 7 | 23 | 24 |
| 8 to 11 | 48 | 50 |
| 12 to 15 | 10 | 10 |
| 16 or more | 12 | 12 |
| Delivery personnel | ||
| Faculty | 6 | 6 |
| Graduate student | 39 | 40 |
| Psychiatrist | 9 | 9 |
| Psychologist | 16 | 16 |
| Therapist | 26 | 27 |
| Manuals used | ||
| No | 37 | 38 |
| Yes | 59 | 61 |
| Fidelity checks used | ||
| No | 47 | 49 |
| Yes | 49 | 51 |