Table 4 Summary of reported limitations in included studies
Study | Text length | Relationship between words, meaning and context | Expertise needed to inform the choice of reference texts | |||||
|---|---|---|---|---|---|---|---|---|
Less accurate with short texts | Word focussed | Applicability to complex contexts | Reference texts must fulfil certain conditions | Scores require rescaling | Potential for transformation errors | Requires researcher interference and skills | Score quality of reference texts | |
Baek, Cappella and Bindman* [29] |  | ☑ | ☑ | ☑ |  |  |  |  |
Baumann, Debus and Müller [41] |  | ☑ |  |  |  |  |  |  |
Bernauer and Bräuninger* [38] |  | ☑ |  | ☑ |  |  |  |  |
Budge and Pennings* [37] |  | ☑ |  |  | ☑ | ☑ |  | ☑ |
Coffé and Da Roit [39] |  | ☑ |  |  |  |  |  |  |
Costa, Gilmore, Peeters, McKee and Stuckler [28] | ☑ | ☑ |  | ☑ | ☑ | ☑ | ☑ | ☑ |
Debus [35] |  | ☑ |  | ☑ |  |  | ☑ |  |
Hug and Schulz [40] | ☑ |  |  | ☑ |  |  |  |  |
Klemmensen, Hobolt and Hansen* [30] | ☑ | ☑ |  | ☑ |  | ☑ | ☑ | ☑ |
Laver, Benoit and Garry* [25] | ☑ |  |  | ☑ |  |  | ☑ | ☑ |
Lowe* [31] |  | ☑ |  | ☑ | ☑ |  |  | ☑ |
Volkens* [36] | ☑ | ☑ | ☑ | ☑ |  |  | ☑ |  |