The Five-Item Guilt Proneness Scale (GP-5) was developed by Taya R. Cohen, Yeonjeong Kim, and Abigail T. Panter.
The Guilt Proneness scale assesses a tendency to experience negative feelings about personal wrongdoing, even when the wrongdoing is private. Persons low in guilt-proneness do not feel particularly bothered by their mistakes or transgressions, and are not inclined to correct them or to avoid committing them. Persons high in guilt proneness feel bad about their mistakes and transgressions, especially when there is a negative impact on others; moreover, they are able to anticipate such feelings before they occur and therefore tend to behave more responsibly and ethically.References
Cohen, T. R., Kim, Y., & Panter, A. T. (2014). The five-item guilt proneness scale (GP-5). Carnegie Mellon University, Pittsburgh, PA. doi: http://dx.doi.org/10.13140/RG.2.1.2847.2167
*The first four items in the GP-5 scale were originally published in:
Cohen, T. R., Wolf, S. T., Panter, A. T., & Insko, C. A. (2011). Introducing the GASP scale: A new measure of guilt and shame proneness. Journal of Personality and Social Psychology, 100(5), 947-966. doi: http://dx.doi.org/10.1037/a0022641