Kontinu-onderzoek (wave 09, june 1975 )

Continuous items for most waves watching tv / reading papers / taking part in discussions on political issues / political knowledge / political participation / party preference...多数调查波次所涉及的连续型变量条目包括：收看电视、阅读论文、参与政治议题讨论、政治知识水平、政治参与行为、党派倾向等。