# **Table A.1: Description of SPI Dimensions**

|Dimension|Brief Description|
|---|---|
|Dimension 1.1: Data<br>use by national<br>legislature|Not included because of lack of established methodology. In principle it may be<br>possible to utilize websites of national legislatures but this will require further work and<br>assessment.|
|Dimension 1.2: Data<br>use by national<br>executive branch|Not included because of lack of established methodology. There are some usable data<br>sources (as used by (PARIS21 2019)) but gaps in data across countries have prevented<br>full adoption.|
|Dimension 1.3: Data<br>use by civil society|Not included because of lack of established methodology. There are some usable data<br>sources with good coverage, for example from social media but more data is required to<br>help assess and allow for likely biases between and within countries.|
|Dimension 1.4: Data<br>use by academia|Not included because of lack of established methodology. We have not been able to<br>find usable data sources with global coverage on which a new methodology could be<br>developed.|
||Five measures usefulness or reliability of country produced measures for international<br>organizations have been included. First, on comparability of poverty estimates for the<br>World Bank reporting on international poverty usingPovcalnet.Second on usable|
|Dimension 1.5: Data<br>use by international<br>organizations|surveys for statistics on child mortality for theUN Inter-agency Group for Child<br>Mortality Estimation.Third on accuracy of debt reporting as classified by the World<br>Bank (Source: World Bank WDI metadata). Fourth, on availability of safely managed<br>drinking water data for use by WHO/UNICEF Joint Monitoring Programme. Fifth, on<br>labor force participation data for use by ILO. While these data sources provide only a<br>partial coverage of data used by international organizations, they do provide an<br>indication of the performance of the national statistical system.|
|Dimension 2.1: Data<br>releases|SDDS/e-GDDS subscription. This indicator is based on whether the country subscribes<br>to IMF SDDS+, SDDS, or e-GDDS standards. The source is the IMF Dissemination<br>Standards Bulletin Board. This is a reliable data source but we recognize that it is a<br>proxy for the concept we are seeking to capture rather than a direct measurement.|
||ODIN Open Data Openness score (Jamison Crowell et al. n.d.). This is a well-<br>established data source with good country coverage, which scores countries based on|
|Dimension 2.2: Online<br>access|whether indicators are available online in a format that is machine readable, in a non-<br>proprietary format, downloadable, with metadata available and terms of use. Scores<br>range from 0-1. For more details, consult theODIN technical documentation|
|Dimension 2.3:|Not included because of lack of established methodology. This could be a new<br>indicator of the number of non-recurring products on NSO website (ad|
|Advisory/ Analytical<br>Services|<br>hoc/experimental rather than regular releases). The indicator is the number of products<br>found. No established source exists for this indicator.|
|Dimension 2.4: Data<br>access services|NADA metadata. This indicator checks whether NADA microdata cataloging is<br>available for surveys produced by NSO. NADA is an open source microdata cataloging<br>system, compliant with the Data Documentation Initiative (DDI) and Dublin Cores<br>RDF metadata standards. Source: NSO websites.|

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