Before you can start your research, you must focus on one aspect of the larger topic of marriage and family. Ask yourself these questions:
Here are some suggestions for narrowing this broad topic:
Family / Families / Family life
Parenting
Children
Mothers
Fathers
Siblings
Grandparents
Birth order
Family values
Single parenting
Stepfamilies / Stepparents
Teen parents
Same-sex parenting
Parenting styles
Parenting stress
Elderly
Aging
Retirement
Multigenerational families
Family violence
Child abuse
Children with disabilities
Working parents
Stay-at-home parents
Child care
Adoption
Household labor and chores
Family planning
Infertility
Childlessness
Maternity / paternity / parental leave
Child development and stages: Infancy, toddlerhood, preschool, middle childhood, adolescence
Family rituals
Family roles
Family values
Religion
Discipline
Military families
Marriage
Military marriages
Divorce
Custody
Remarriage
Stepfamilies
Same-sex marriage
Adoption
Arranged marriages
Cohabitation
Household chores / tasks
Work / Careers
Prenuptial agreements
Widowhood
Gender roles
Love
Dating
Relationships
Infidelity
Communication
Dating or Domestic violence
Marriage customs around the world and in specific cultures