The Michigan Family Information Questionnaire (MFI) is a comprehensive questionnaire used to collect family information from the parents of children of all ages. It covers topics such as family background, parent-child relationships, family functioning, parenting practices, and health information. The MFI is used in a variety of contexts to assess family dynamics, to inform clinical and research practices, and to develop interventions for families. The MFI is divided into two types: the short form and the long form. The short form is designed to provide a brief overview of the family, while the long form is more comprehensive, covering more in-depth family information. Both forms include sections on family background, parent-child relationships, family functioning, parenting practices, and health information. The MFI is a popular tool among researchers and clinicians due to its ability to capture a wide range of family information in a short amount of time. It is also highly reliable and valid, making it an ideal tool for assessing family dynamics.