| . | Phase . | Aims . | Methods . |
|---|---|---|---|
| I | Preparatory | Development of candidate EF items representing the EF categories of the Comprehensive ICF Core Set for AS | Linkage of items from various assessment tools for functioning and health to 13 EF-categories covering 4 domains |
| II | 1st international cross-sectional survey | Data collection and analyses for item reduction (within and across EF) | Correlation of each individual EFIS with sum score of ASAS HI was used to inform selection process |
| III | Expert consultation (Steering Committee) | Agreement on item reduction | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| IV | 2nd international cross-sectional survey | Data collection and analyses for validation of the draft version and further item reduction | Correlation of each individual EF item to the sum score of the ASAS HI was used to inform consensus |
| V | Consensus Meeting (Steering Committee) | Agreement on a final version | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| VI | Translation and field test | Provision of a country-specific language version for each participating country | Forward–backward translation and cognitive debriefing according to Beaton et al. [14] resulting in some minor adaptations when needed by country PI |
| . | Phase . | Aims . | Methods . |
|---|---|---|---|
| I | Preparatory | Development of candidate EF items representing the EF categories of the Comprehensive ICF Core Set for AS | Linkage of items from various assessment tools for functioning and health to 13 EF-categories covering 4 domains |
| II | 1st international cross-sectional survey | Data collection and analyses for item reduction (within and across EF) | Correlation of each individual EFIS with sum score of ASAS HI was used to inform selection process |
| III | Expert consultation (Steering Committee) | Agreement on item reduction | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| IV | 2nd international cross-sectional survey | Data collection and analyses for validation of the draft version and further item reduction | Correlation of each individual EF item to the sum score of the ASAS HI was used to inform consensus |
| V | Consensus Meeting (Steering Committee) | Agreement on a final version | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| VI | Translation and field test | Provision of a country-specific language version for each participating country | Forward–backward translation and cognitive debriefing according to Beaton et al. [14] resulting in some minor adaptations when needed by country PI |
ASAS HI: Assessment of Spondyloarthritis International Society Health Index; EF: environmental factor; PI: principal investigator.
| . | Phase . | Aims . | Methods . |
|---|---|---|---|
| I | Preparatory | Development of candidate EF items representing the EF categories of the Comprehensive ICF Core Set for AS | Linkage of items from various assessment tools for functioning and health to 13 EF-categories covering 4 domains |
| II | 1st international cross-sectional survey | Data collection and analyses for item reduction (within and across EF) | Correlation of each individual EFIS with sum score of ASAS HI was used to inform selection process |
| III | Expert consultation (Steering Committee) | Agreement on item reduction | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| IV | 2nd international cross-sectional survey | Data collection and analyses for validation of the draft version and further item reduction | Correlation of each individual EF item to the sum score of the ASAS HI was used to inform consensus |
| V | Consensus Meeting (Steering Committee) | Agreement on a final version | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| VI | Translation and field test | Provision of a country-specific language version for each participating country | Forward–backward translation and cognitive debriefing according to Beaton et al. [14] resulting in some minor adaptations when needed by country PI |
| . | Phase . | Aims . | Methods . |
|---|---|---|---|
| I | Preparatory | Development of candidate EF items representing the EF categories of the Comprehensive ICF Core Set for AS | Linkage of items from various assessment tools for functioning and health to 13 EF-categories covering 4 domains |
| II | 1st international cross-sectional survey | Data collection and analyses for item reduction (within and across EF) | Correlation of each individual EFIS with sum score of ASAS HI was used to inform selection process |
| III | Expert consultation (Steering Committee) | Agreement on item reduction | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| IV | 2nd international cross-sectional survey | Data collection and analyses for validation of the draft version and further item reduction | Correlation of each individual EF item to the sum score of the ASAS HI was used to inform consensus |
| V | Consensus Meeting (Steering Committee) | Agreement on a final version | Nominal Consensus Process based on level of correlation, redundancy and representation of ICF domains |
| VI | Translation and field test | Provision of a country-specific language version for each participating country | Forward–backward translation and cognitive debriefing according to Beaton et al. [14] resulting in some minor adaptations when needed by country PI |
ASAS HI: Assessment of Spondyloarthritis International Society Health Index; EF: environmental factor; PI: principal investigator.
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