A research report quoted by the Education Department indicates that in "language-loaded" subjects (subjects with a strong linguistic component), such as geography, history or science, the performance of pupils taught in their mother tongue is clearly better than that of those taught in English, yet their grades in English do not fall behind those of pupils in English-medium schools as a result.
教育署提出研究調查顯示，採用母語學習的學生，在語言成分較重的學科，如地理、歷史及科學類表現，顯然較「英中」佳，而英文科的成績，卻沒有因此而較英中遜色。