SpainThe article discusses the potential bias in the polling data collected by Tezanos, a market research firm, suggesting that their methodology has reached problematic levels. The piece highlights concerns over the reliability of their Continuous Information Service (CIS), which is used to track public opinion in Spain. To illustrate this point, the article interviews two voters from the Spanish Socialist Workers' Party (PSOE) for every one voter from the Popular Party (PP). This approach implies a possible imbalance in sampling, raising questions about the representativeness of the data collected.
Bias read (Progressive): The article frames the issue of polling bias against Tezanos in a manner that emphasizes the underrepresentation of PP voters compared to PSOE voters, potentially implying a systemic disadvantage for the right-leaning PP. The choice to interview twice as many PSOE voters as PP voters could suggest a
