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An English-language adaptation and validation of the Political Efficacy Short Scale (PESS) [journal article]
Source: Measurement Instruments for the Social Sciences, 3 (2021). p.1-12
The Optimism-Pessimism Short Scale-2 (SOP2): a comprehensive validation of the English-language adaptation [journal article]
Source: Measurement Instruments for the Social Sciences, 4 (2022). p.1-14