University of Oregon sociology professor Ryan Light published a study recently which looked at 19,000 studies and articles on same-sex parenting published between 1977 and 2013 ("Traditional family unit is what will build the nation" by Ms Priscilla Poh Beng Hoon; Forum Online, Tuesday).

The study states that there is an overwhelming consensus that there is no difference between children who were raised by same-sex or different-sex parents.

The children also displayed no significant differences in psychological, behavioural or educational outcomes.

I implore our authorities to refer to factual evidence in shaping their views and not rely on unsubstantiated opinion.

Clement Lin Yihao