Final answer:
The likelihood of childhood sexual abuse being perpetrated by a stepfather instead of a biological father can be related to the dynamics of stepfamilies, potentially weaker emotional bonds, and the different stresses involved in such family structures.
Step-by-step explanation:
The text suggests that sexual abuse of a child or adolescent is more likely to be perpetrated by a stepfather than by a biological father due to several factors. One of these factors is family dynamics, as children in two-parent households with a stepfather may face different stresses and vulnerabilities. Additionally, there might be a less established biological or emotional bond between a stepfather and a stepchild compared to the bond between a biological parent and child. The stresses of parenting, especially in complex family structures, could contribute to this increased risk in households with stepfathers. It's crucial to recognize that abuse crosses all socioeconomic and ethnic lines and is influenced by parents' resilience to stress. The issues of power dynamics and potentially weaker family bonds can make stepfamily situations more susceptible to instances of abuse. However, all cases are unique and numerous factors contribute to the likelihood of abuse.