Attitudes to Replacement, Reduction and Refinement.

Respondents scored their agreement with statements about Replacement alternatives on a Likert scale (‘strongly disagree’; ‘disagree’, ‘neither agree nor disagree’; ‘agree’; ‘strongly agree’). Percentages of respondents either agreeing (‘agree’ and ‘strongly agree’) or disagreeing with the statements (‘disagree’ and ‘strongly disagree’) are clustered). The option selected by most respondents (‘mode answer’) is highlighted for each statement and survey (N = 229–234 BC, N = 97–98 AC, due to varying attrition rates).