Abstract
Previous research has tended to classify stepfamilies based on self-report of their familial relationships. However, some stepfamily members do not identify as being part of a stepfamily, leading to the exclusion of certain stepfamilies from stepfamily research. Using data from the first national cohort study of children in Ireland, the aim of this study was to compare the characteristics of self-identifying stepfamilies with those of non-self-identifying stepfamilies, a group about which little is known. The analysis revealed that in approximately 10% of stepfamilies, neither parent declared their stepfamily status (n = 34, N = 288 stepfamilies). No differences emerged between self-identifying and non-self-identifying stepfamilies in the quality of the parent–child or spousal relationships. Non-self-identifying stepfamilies were less likely to be complex, and were more likely to be stepmother and simple stepfamilies than self-identifying stepfamilies. These findings suggest that non-self-identifying stepfamilies constitute a significant minority of stepfamilies who may exhibit unique structural characteristics.