Answer :
Final answer:
The study undertaken by McCall University of Pittsburgh is a Longitudinal Study which involves observing a group over an extended period, in this case, children placed in different Russian families.
Explanation:
McCall University of Pittsburgh's study on the development of children placed into different types of Russian families following an institutional intervention is considered a Longitudinal Study. Longitudinal Studies involve following a group of research participants over an extended period. This method allows researchers to observe changes in the individual or group over time, providing valuable information in understanding the effects of different environments on child development. For example, comprehensive data is collected to map out physical, cognitive, and psychosocial growth in children. Therefore, the correct answer to your question is A) Longitudinal study.
The type of study described, in which children are placed into different types of families following an institutional intervention, is a Longitudinal Study. This type of study involves following a group of research participants for an extended period of time to observe their development. In this case, the study focuses on the development of children in different types of Russian families after an institutional intervention.
Learn more about Longitudinal Study here:
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