Perceptions of CO2 Report - Global CCS Institute

Appendix D Participant DemographicsAustralian PanelSurvey respondents were Australian residents aged 20 or older. Respondents were selected bystratified random sampling from registrants of a survey company’s panel. The panel invited toparticipate was representative of the demographic characteristics (e.g. gender, age, andeducational attainment) of the Australian population. The survey was launched via email to 1,116residents and completed by 809 respondents, resulting in a response rate of 72.5%. Due tointernal error, survey responses were not controlled to derive a completely representative set ofparticipants with respect to educational attainment. Although representative participants had beeninvited, the actual respondents with bachelor’s and postgraduate degrees were 18% and 18%,respectively, adding to 36%, whereas the actual percentage of Australians with either a bachelor’sor postgraduate degree is lower (i.e., though gradually rising since 2000, even by 2010 it had onlyreached 27%) (ABS, 2011).The table below shows a comparison of the age of Australian survey respondents and the nationalaverage. The younger age groups (20–49 years) were under-represented among respondents,while the percentage of respondents 50 years and over was higher than the Australian population.Table 6: Comparison between Australian survey panel and national averageAustralian Survey Panel(N=809)National Average aProportion female 53.% 51%Proportion Age ≤ 29 13% 18%30 ~ 39 19% 20%40 ~ 49 18% 20%50 ~ 59 25% 18%≥ 60 25% 25%a. ABS (2007). 2006 Census Tables: Australia. Cat. No. 2068.0.Japanese panelThe Japanese respondents were selected by random sampling of the general public aged 20 orolder living in Japan. Sampling proceeded by the random walk method, whereby surveyors startedat one address in the area of the sampling point and then randomly selected another map addressto find the next participant. The survey’s URL was hand delivered to respondents, who filled out thequestionnaire electronically. The panel was representative of the demographic characteristics (i.e.,gender, age) of the Japanese population. 2,222 residents were sampled and 813 responded (i.e.,36.6%).Table 7 provides a comparison between the Japanese survey panel and the national average. TheJapanese survey panel had a larger portion of 20–40 year olds and a smaller portion of over 60year olds compared to the national average. One key reason for this is that Japanese internetpenetration in older people is still low (65–59 years old: 37.6%, 70–79 years old: 27.7%, over 80years old: 14.5%).64 | Understanding how individuals perceive carbon dioxide