Speciesism Scale

Speciesism Scale

Caviola, Everett, and Faber (2018)


As part of this line of research, we have developed the Speciesism Scale (Caviola, Everett, and Faber, 2018), which consists of 6 items which capture individual differences in speciesist attitudes, or the assignment of moral worth based solely on species membership. As discussed in depth in the paper, speciesism as measured by the Speciesism Scale is a) a measurable, stable construct with high interpersonal differences, that b) goes along with a cluster of other forms of prejudice, and c) is able to predict real-world decision-making and behaviour.

Instructions for Researchers

Participants answer on 7-point scale from “Strongly disagree” to “Strongly agree”. The fifth item (labelled with ‘R’, indicates reversed scoring). After reverse-coding this item, scores should be averaged together to create an overall mean score of speciesism.

Scale Items

  1. Morally, animals always count for less than humans.
  2. Humans have the right to use animals however they want to.
  3. It is morally acceptable to keep animals in circuses for human entertainment.
  4. It is morally acceptable to trade animals like possessions.
  5. Chimpanzees should have basic legal rights such as a right to life or a prohibition of torture. (R)
  6. It is morally acceptable to perform medical experiments on animals that we would not perform on any human.


Caviola, L., Everett, J.A.C., & Faber, N.S (2018). The moral standing of animals: Towards a psychology of speciesism. Journal of Personality and Social Psychology.


For your convenience I have provided downloads of a PDF copy of the survey, a Qualtrics qsf file to import a pre-formatted speciesism scale into your own Qualtrics surveys, and an R Script to recode, combine, and then examine scores on the Speciesism Scale. Please click the links below.