Item Drop Rate

Vishnu - Dreamweaver

I'm not sure about the sources, but several people told me that an item's drop rate increases if I am in a party of people of similar level. Can anyone confirm this please? In addition, if it is true, what is considered "similar level"(Like 5 levels above me?)

Vallerie - Lost City

http://www.pwdatabase.com/pwi/drop

Check above link

Tarck - Heavens Tear

Vishnu - Dreamweaver wrote: »

[..]several people told me that an item's drop rate increases if I am in a party of people of similar level. [..]

I never heard about, and never experienced such a behaviour.
Sounds like rumours to me.
Although, this would be really reasonable, because in a party one has to share the drops with the other members.