Glossary M

Maternal immune hypothesis refers to the Theory of Sexual orientation that proposes that the fraternal birth Order effect of gay brothers reflects the progressive immunization of some mother

Maternal influences refer to the aggregate of all psychological effects mothers have on their children.

Maternal-serum alpha-fetoprotein screening (MSAFP) refers to a blood test used during early pregnancy to determine neural tube defects such as spina bifida or anencephaly .

mathematics disorder refers to mathematics performance significantly below the standard for that age level.

Matriarch refers to a woman who is the head of a family ; a woman who is the founder or leader of a group or community ; and may also refer to a venerable old woman.
Matriarchal family is a family in which the mother has formal authority and dominance.
Matrocliny means inheritance of traits primarily from the mother. Matrocliny is also called Matricliny

Matthew effect refers to the effect of early reading skill on later reading skill in which early good readers improve faster than early poor readers with the result that the gap between skilled and poor readers grows. Matthew effect is named after the biblical passage according to which the rich become richer and the poor become poorer.

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