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In page Female education in Nigeria:

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The 'Nigerian tradition' was explained as a tradition that attaches higher value to a man than a woman, whose place is believed to be the kitchen.[3][4] A study by the University of Ibadan linked the imbalance in boys' and girls' participation in schooling was to the long-held belief in male superiority and female subordination.[citation needed][5] This situation was further aggravated by patriarchal practices which gave girls no traditional rights to succession. Therefore, the same patriarchal practices encouraged preference to be given to the education of a boy rather than a girl.