“…Subjects are presented with a series of choices; for each choice, they are asked to identify the option they perceive to be more intense (severe, in our case). As such, the rationale of the application of Thurstone's paired comparisons to the estimation of sentence severity resides on the concept of 'penal exchangeability', which points at the existence of overlaps in severity between different disposal types (Erickson and Gibbs, 1979;Harlow et al, 1995;McClelland and Alpert, 1985;Sebba, 1978;Sebba and Nathan, 1984;Leclerc and Tremblay, 2016;Lovegrove, 2001;Petersilia and Deschesnes, 1994a,b;Spelman, 1995;Tremblay, 1988). For example, high community orders with onerous conditions attached might in some instances be more severe than short suspended sentences.…”