Final answer:
Duvall's developmental stages of the family theory define the tasks for expectant couples and parents of school-age children. The success of these families in accomplishing these tasks can be assessed through specific questions during an interview.
Step-by-step explanation:
Duvall's developmental stages of the family theory outline the tasks for expectant couples and parents of school-age children. According to Duvall, the tasks for an expectant couple include preparing for the arrival of the baby, adjusting their roles and responsibilities, and forming a parental identity. The tasks for parents of a school-age child include promoting the child's independence, maintaining a stable family environment, and supporting the child's educational development.
To assess whether the families you interviewed were successful in accomplishing these tasks, you can ask specific questions during the interview. For the expectant couple, you can ask about their preparations for the baby, how they are adjusting their roles, and how they are envisioning their future as parents. For the parents of a school-age child, you can inquire about their parenting strategies, how they support their child's independence, and what efforts they make to provide a stable family environment.