Agreement with payment statements
| Mean level of agreement Mean (SD) | % respondents who indicated a level of agreement greater than 4 – ‘somewhat agree’ | Concept | Statement describing payment attitude | |||
| Public n=264 | CHIM experts n=36 | T-test, p value | Public n=264 | CHIM experts n=36 | ||
| 5.30 (1.07) | 2.47 (2.02) | t(37.72)=8.24, p<0.001 | 91.7 | 27.8 | Risk payment and harm compensation | Risk should be accounted for in the payment and extra compensatory payment should be given for actual harm. |
| 2.25 (1.95) | 2.88 (2.24) | t(41.09)=−1.59, p=0.12 | 25 | 45.7 | No risk payment but harm compensation | Risk should not be accounted for in the payment but extra compensatory payment should be given for actual harm. |
| 3.65 (1.67) | NA | NA | 57.2 | NA | Payment as coercion | Offering large amounts of money to become a Challenge Study participant could force people to participate in this research. |
| 4.21 (1.41) | NA | NA | 71.6 | NA | Payment as an undue inducement | Offering large amounts of money to participants for being involved in Challenge Studies could impair participants’ judgement. This means they may choose to become involved in the research despite it not being in their best interests. |
Respondents were asked to indicate their level of agreement with each statement on a slider scale from 0: strongly disagree to 6: strongly agree. The mean level of agreement for each statement was compared between CHIM experts and public respondents by using t-tests. As the CHIM experts survey did not include all statements, ‘NA’ indicates the questions that were not in the experts’ survey.
CHIM, Controlled Human Infection Model.