Table 12.
Study quality ratings: high; moderate low (see Appendix 2 for a description of these rating categories).
| Study | Design | Control for confounds | Aphasia variables | Assessment variables | STM/WM score interpretation | Overall rating |
|---|---|---|---|---|---|---|
| Abou El Ella et al. (2013) | High | Low | Moderate | Low | High | Low |
| Allen et al. (2012) | High | Low | Low | Low | High | Low |
| Butler et al. (2014) | High | Moderate | High | Low | High | Low |
| Caza et al. (2002) | Low | Low | Moderate | Low | High | Low |
| Chiou and Kennedy (2009) | High | Moderate | High | High | High | High |
| Coelho et al. (2005) | High | Low | Moderate | Low | Low | Low |
| Crescentini et al. (2008) | Low | Low | Moderate | Moderate | High | Low |
| DeDe et al. (2014) | High | Moderate | High | Moderate | High | Moderate |
| Fillingham et al. (2006) | High | Low | High | Low | High | Low |
| Francis et al. (2003) | Low | Low | Low | Low | Low | Low |
| Friedmann and Gvion (2007) | Moderate | Low | Moderate | Low | High | Low |
| Fucetola et al. (2006) | High | Low | High | High | High | Low |
| Fucetola et al. (2009) | High | High | High | High | High | High |
| Galling et al. (2014) | Low | Low | Moderate | Low | Low | Low |
| Gvion and Friedmann (2012) | High | Low | Moderate | Low | High | Low |
| Helm-Estabrooks (2002) | High | Moderate | Low | Low | High | Low |
| Hoffman et al. (2013) | Moderate | Low | Moderate | Low | Low | Low |
| Howard and Nickels (2005) | Low | Low | Low | Low | High | Low |
| Ivanova et al. (2015) | High | High | High | Moderate | Low | Low |
| Ivanova and Hallowell (2014) | High | High | High | Moderate | High | High |
| Kalbe et al. (2005) | High | Moderate | High | Moderate | High | Moderate |
| Kasselimis et al. (2013) | High | Moderate | Low | Low | Low | Low |
| Lang and Quitz (2012) | High | Moderate | Low | Moderate | Low | Low |
| Lee and Pyun (2014) | High | High | Moderate | Low | Low | Low |
| Lee and Sohlberg (2013) | High | Low | Moderate | Low | Low | Low |
| Mayer and Murray (2002) | Moderate | High | Moderate | Low | High | Low |
| Meteyard et al. (2015) | Moderate | Moderate | Moderate | Moderate | High | Moderate |
| Murray (2012b) | High | High | High | Low | High | Low |
| Murray et al. (2006) | Moderate | Low | Moderate | Moderate | High | Low |
| Nicholas et al. (2005) | High | Low | Moderate | Low | High | Low |
| Sage et al. (2011) | Moderate | Low | Low | Low | High | Low |
| Salis (2012) | Moderate | Low | Moderate | Low | High | Low |
| Sidiropoulos et al. (2015) | High | Moderate | Low | Low | High | Low |
| Sinotte and Coelho (2007) | Moderate | Low | Moderate | Low | High | Low |
| Sung et al. (2009) | High | High | Low | Low | Low | Low |
| Vukovic et al. (2008) | High | Low | Moderate | Moderate | Low | Low |