Towards a Circular Meta-Values Framework for Political Conflicts: Testing the Inclusive Society–National Community Axis in Poland - online supplement

Abstract

These supplementary materials provide additional processed data and measurement documentation for the study testing the Inclusive Society–National Community (IS–NC) membership cleavage in Poland. They report correlations of IS, NC, and the IS–NC balance score with Schwartz’s 19 PVQ-RR value types using MRAT scores under two specifications—excluding “Hard to say” responses on left–right self-placement (N = 780) and in the full sample including them (N = 1039)—and correlations with Schwartz’s four higher-order value types. The supplement further includes inter-item correlation evidence for the eight IS/NC indicators (raw responses; N = 780), the full wording of the IS–NC items in the original Polish version, and short operational definitions for all sixteen meta-value poles and the eight bipolar pairs that structure the proposed circular framework. Finally, it provides the wave-1 correlation matrix for the 16 political meta-value poles based on MRAT-transformed scores (within-respondent centring across the PW battery, followed by scale averaging), alongside internal-consistency estimates (Cronbach’s α) for each pole. A brief note flags that a small subset of poles with lower reliability is undergoing item-level refinement in Wave 2, while the article’s substantive analyses prioritise the IS–NC pair, which meets conventional reliability expectations.