Dr. matsuko's major research interest is the long-term effects of child-rearing practices on the psychological adjustment of offspring. it is most likely that dr. matsuko is a(n) psychologist.

The answer is: It is most likely that Dr. Matsuko is a developmental psychologist.

Explanation:

Developmental psychology is a field within psychology that focuses on changes and permanence in a person's growth and across the lifespan. It aims to understand and explain cognitive, emotional and behavioral development seeking for factors, both internal and external, that impact such development. Developmental psychology must also intend to optimize development, by transforming the theoretical insights into practical knowledge that can be used in a number of fields concerning child development.

In this case, Dr. Matsuko intends to understand the long-term effects of child-rearing in the adjustment of a person, it is most likely that he is a developmental psychologist that analyzes factors such as child-rearing and mostly its effects on the development of several psychologist abilities, such as adjustment.

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