Quality procedures
| Criteria | Realisation |
|---|---|
| Internal validity | Data analysis was performed by two researchers |
| External validity | Triangulation, comparisons across multiple sources |
| Construct validity | Collecting data from multiple sources |
| Inter-rater reliability | Exposing relevant parallels across multiple sources |
| Criteria | Realisation |
|---|---|
| Internal validity | Data analysis was performed by two researchers |
| External validity | Triangulation, comparisons across multiple sources |
| Construct validity | Collecting data from multiple sources |
| Inter-rater reliability | Exposing relevant parallels across multiple sources |
Source(s): Yin (2009)
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