Research methods used
| Research method | 1990–2011 | 2012–2019 | 2020–2024 |
|---|---|---|---|
| Questionnaires or surveys | 11 | 15 | 17 |
| Interviews (in-depth and semi-structured) | 10 | 12 | 14 |
| Focus groups | 2 | 4 | 2 |
| Content analysis of documents | 3 | 5 | 2 |
| Action research (observations) | 1 | 3 |
| Research method | 1990–2011 | 2012–2019 | 2020–2024 |
|---|---|---|---|
| Questionnaires or surveys | 11 | 15 | 17 |
| Interviews (in-depth and semi-structured) | 10 | 12 | 14 |
| Focus groups | 2 | 4 | 2 |
| Content analysis of documents | 3 | 5 | 2 |
| Action research (observations) | 1 | 3 |
Note(s): *Articles could have been coded in more than one category, and therefore the total is higher than n = 79
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