Table 1.
List of studies included and quality level.
| Study | Description of the Program | Number of Participants | Included in JCR/SJR | Duration of the Program | Description of the Methodology | Overall Score | Quality Level |
|---|---|---|---|---|---|---|---|
| An [34] | 2 | 0 (n = 10) | 1 | 2 | 1 | 6 | AQ |
| Bruce [35] | 0 | 2 (n = 32) | 1 | 0 | 1 | 4 | LQ |
| Capella et al. [36] | 1 | 0 (n = 4) | 1 | 2 | 2 | 6 | AQ |
| Capella et al. [26] | 0 | 0 (n = 4) | 1 | 2 | 2 | 5 | AQ |
| Capella et al. [37] | 1 | 2 (n = 32) | 1 | 2 | 2 | 8 | HQ |
| Capella et al. [38] | 1 | 2 (n = 96) | 1 | 2 | 2 | 8 | HQ |
| Capella et al. [39] | 1 | 2 (n = 96) | 1 | 2 | 2 | 8 | HQ |
| Chiva-Bartoll et al. [40] | 1 | 2 (n = 108) | 2 | 2 | 2 | 9 | HQ |
| Chiva-Bartoll et al. [29] | 1 | 2 (n = 149) | 1 | 2 | 2 | 8 | HQ |
| Chiva-Bartoll et al. [41] | 1 | 2 (n = 169) | 1 | 0 | 1 | 5 | AQ |
| Chiva-Bartoll et al. [42] | 1 | 2 (n = 104) | 1 | 0 | 2 | 6 | AQ |
| Douglas et al. [43] | 2 | 0 (n = 10) | 0 | 2 | 2 | 6 | AQ |
| Du Toit [44] | 1 | 2 (n = 140) | 1 | 2 | 1 | 7 | HQ |
| Franco-Solà and Figueras [45] | 2 | 0 (n = unknown) | 1 | 0 | 2 | 5 | AQ |
| Galvan et al. [46] | 1 | 1 (n = 16) | 2 | 0 | 2 | 6 | AQ |
| Gil-Gómez et al. [27] | 0 | 2 (n = 346) | 2 | 2 | 2 | 8 | HQ |
| Giles et al. [47] | 0 | 2 (n = 42) | 1 | 2 | 2 | 7 | HQ |
| Heo et al. [48] | 2 | 2 (n = 142) | 1 | 2 | 2 | 8 | HQ |
| Lamoneda [49] | 2 | 2 (n = 50) | 0 | 2 | 2 | 8 | HQ |
| Lleixà and Ríos [50] | 1 | 0 (n = 10) | 0 | 2 | 2 | 5 | AQ |
| MacPhail and Sohun [10] | 2 | 2 (n = 68) | 2 | 2 | 1 | 9 | HQ |
| Martínez et al. [51] | 1 | 2 (n = 25) | 1 | 2 | 2 | 8 | HQ |
| Marttinen et al. [11] | 2 | 0 (n = 9) | 2 | 2 | 1 | 7 | HQ |
| Santos et al. [52] | 1 | 2 (n = 32) | 1 | 2 | 1 | 7 | HQ |
| Peralta et al. [53] | 2 | 2 (n = 55) | 1 | 2 | 2 | 9 | HQ |
| Ruiz et al. [54] | 1 | 2 (n =23) | 2 | 0 | 2 | 7 | HQ |
| Ward et al. [55] | 2 | 0 (n = 8) | 2 | 0 | 2 | 6 | AQ |
| Webster et al. [56] | 2 | 1 (n = 18) | 2 | 2 | 2 | 9 | HQ |
| Wilkinson et al. [57] | 1 | 0 (n = 6) | 2 | 2 | 2 | 7 | HQ |
| Willard and Crandall [58] | 2 | 2 (n = 27) | 0 | 0 | 2 | 6 | AQ |
| Woodruff and Sinelnikov [59] | 0 | 2 (n =50) | 2 | 0 | 2 | 6 | AQ |
Parameter 1: did the study provide a detailed description of the SL implementation program? 0: not included; 1: description included, but it is short and imprecise; 2: detailed description included. Parameter 2: number of participants: 0: from 1–10 participants; 1: from 11 to 20 participants; 2: more than 20 participants. Parameter 3: the article is included in JCR (Journal Citation Research): 0: not included; 1: included in Scimago Journal Rank (SJR); 2: included in JCR. Parameter 4: duration of the intervention: 0: less than 3 months; 2: more than 4 months. Parameter 5: did the study inform about the methodological process applied? 1: informed but incomplete; 2: informed.