How shared versus unshared parental contribution to child risk influences guilt responses.

The extent to which parents experience guilt related to their child's health may depend on their perceptions of their contribution to these outcomes. The impact of the child's "other" biological parent's (OBP) contribution to child health on guilt responses is understudied. Some models posit a diffusion-of-responsibility process, while others favor a heightened-risk-heightened-guilt model. The present study examines how perceived OBP contribution to child risk affects guilt among a sample of parents with self-reported overweight. Parents who perceived their child's OBP to also have overweight experienced more guilt for passing down genetic and family environment-based obesity risk to their child, which suggests that perceptions of shared risk contribution promote guilt-related outcomes. Additionally, risk information endorsing a gene-environment interaction liability framing was the most responsive to OBP weight status. These results support a heightened-risk-heightened-guilt process. Future work should consider guilt when developing child health interventions to avoid undesirable emotional outcomes among parents.