IPA: /sɪˌfɪl.əˈlɒdʒ.ɪ.kəl/
KK: /sifəˈlɒdʒɪkəl/
Relating to the study of elections and voting behavior.
The psephological analysis revealed interesting trends in voter preferences.
Psephological → It is formed from "psephos" (ψήφος) (meaning pebble or vote in Greek) and "-logical" (from Greek "logia", meaning study or science). The word refers to the study of voting and electoral systems, combining the concept of voting (psephos) with the study of it (logical).
Think of 'psephos' as relating to 'voting' and '-logical' as the study of something. This helps you remember that 'psephological' is about the study of voting.