Table 5. Intervention-related characteristics of the studies.
| Category | N | % | ||
|---|---|---|---|---|
| Number of sessions | ||||
| 10–19 | 23 | 71.9 | ||
| 20–29 | 7 | 21.9 | ||
| Above 30 | 2 | 6.3 | ||
| Number of sessions per week | ||||
| 1 | 5 | 15.6 | ||
| 2 | 25 | 78.1 | ||
| 3 | 2 | 6.3 | ||
| Length of each session | ||||
| 15–30 mins | 2 | 6.3 | ||
| 31–45 mins | 23 | 71.9 | ||
| 46–60 mins | 6 | 18.8 | ||
| NA | 1 | 3.1 | ||
| Duration | ||||
| 4–9 wks | 22 | 68.8 | ||
| 10–14 wks | 9 | 28.1 | ||
| 15–19 wks | 1 | 3.1 | ||
| Group size | ||||
| One-on-one | 23 | 71.9 | ||
| Small (2–3) | 3 | 9.4 | ||
| Medium (4–6) | 2 | 6.3 | ||
| Mixed (One-on-one + group) | 2 | 6.3 | ||
| NA | 2 | 6.3 | ||
| Interventionist | ||||
| Researcher | 24 | 75.0 | ||
| Graduate students | 2 | 6.3 | ||
| Researcher + Volunteer | 1 | 3.1 | ||
| Peer | 1 | 3.1 | ||
| NA | 4 | 12.5 | ||
| Instructional setting | ||||
| General classroom | 16 | 50.0 | ||
| Special education classroom | 3 | 9.4 | ||
| Special school | 1 | 3.1 | ||
| Private center | 1 | 3.1 | ||
| Other | 5 | 15.6 | ||
| NA | 6 | 18.8 | ||
| Basic academic domain (DV) | ||||
| Reading | Early literacy | 1 | 3.1 | |
| Reading fluency | 7 | 21.9 | ||
| Fluency + comprehension | 7 | 21.9 | ||
| Early literacy + Fluency + comprehension | 1 | 3.1 | ||
| Writing | 6 | 18.8 | ||
| Math | Early math | 1 | 3.1 | |
| Calculation | 7 | 21.9 | ||
| Reading + Writing | 2 | 6.3 | ||
| Total | 32 | 100 | ||