Incorrect. Just like other types, if a normal type was to attack with a normal type move, they would get a STAB from it, just like the others except certain techniques like Seismic Toss, Night Shade, SonicBoom, Dragon Rage.
Hidden Power in normal types apparently don't have STAB on them unless the the user has the ability normalize which makes all moves in battle act as the normal type, though that only applies to Skitty & Delcatty only
Hidden Power in normal types apparently don't have STAB on them unless the the user has the ability normalize which makes all moves in battle act as the normal type, though that only applies to Skitty & Delcatty only