India, April 13 -- Every sibling, at some point, must have had a tiff over that one burning question: who's the favourite child? From exaggerated claims of being adopted from a dumpster to complaints about who gets away with more, siblings occasionally duel over perceived parental favoritism.

A study published in Psychological Bulletin actually has the answer to it, revealing parents may actually be lenient towards daughters and children who are responsible and easy to get along.

Daughters are slightly more likely to receive biased treatment from parents, as seen among participants based in the U.S. However, when children were asked about it, they didn't seem to perceive this favoritism the same way.

The researchers revealed certain pe...