Do majoring subjects affect the morningness-eveningness preference by students?

Women preferred morningness significantly more than men. Differences in scores between both sexes became greater in order of the phase points of 'rising time,' 'peak of activities,' and 'falling-to-sleep time,' suggesting that oscillator(s) of men are more easily free-running than those of women. Women majoring in natural sciences or agriculture preferred morningness significantly more than women majoring in humanities, economics, or education.