Being a foster, relative or adoptive parent (herein referred to as ‘resource parent’) is a crucial but highly challenging role. Resource parent trainings are designed to build knowledge, skills, preparation and confidence in resource parents prior to beginning their support of children and youth. However, often resource parents go into these roles feeling unconfident and unprepared to fulfil their responsibilities. The National Training and Development Curriculum for Foster and Adoptive Parents (NTDC) is a new curriculum developed with support from the United States Children's Bureau. This study compares the perceived preparation, confidence and willingness to care for a variety of subgroups of children at baseline and 6 months after training of caregivers who participated in NTDC training curriculum versus training as usual to assess whether the NTDC curriculum led to improved caregiver preparation to foster or adopt. NTDC caregivers were found to have more positive differences than control group caregivers from baseline (pretraining) to follow‐up on confidence to care for children considered challenging, confidence to care for children across multiple age ranges and perceived preparation to care for children aged 13 years and older. NTDC is a promising new resource that can help overcome some traditional resource parent training and preparation‐related challenges.