kai arzheimer

How do you measure political secularism at the individual level?

For better (seriously?) or worse (you betcha!), politics and religion are intimately intertwined. While everyone and their grandfather (and especially their grandfather) gets worked up about immigration from Muslim-majority countries, the more relevant development in much of Europe is secularisation.

Secularisation as a process has many facets (e.g. a decline of religious membership, practice, and beliefs). From a political and political science POV, the rise of political secularism is a particularly interesting aspect of it.

As an ideology, political secularism is well researched. But while there is a plethora of instruments for measuring religiousness, there is no instrument for measuring individual politically secular attitudes. These are not two sides of the same coin. Political secularism is not merely the absence of religiousness, but rather a world view which holds that religious beliefs should play no role in politics.

In a new publication (of which I am unduly proud), I present a short battery of items that tap into politically secular attitudes. Making use of data from four large representative surveys, I use Confirmatory Factor Analysis to show that these items form an internally consistent scale. I also demonstrate convergent and discriminant validity of this scale. To use the technical term, it’s a neat, short instrument that may be readily used in future surveys.

The article came out today in Politics & Religion (after a wait of almost Catholic proportions). It is published as Open Access under a Creative Commons licence. Replication data are also freely available, and if that is not enough, there is a lengthy appendix with even more tables. And here is my celebratory twitter thread 👇.

https://twitter.com/kai_arzheimer/status/1509167038815784964
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