SAN FRANCISCO Current web design easily frustrates children, yet creates a satisfying experience for seniors, a pair of studies released Monday concludes.

Two separate studies conducted on children ages 5 to 11 and seniors age 65 and older say assumptions about age groups and Internet use are wrong, AFP reported.

The surveys, conducted by the Nielsen Norman Group, a San Francisco Internet design think tank, tested 55 children from Israel and the U.S., and also surveyed 40 senior citizens in the U.S. and Japan.

Even though seniors were less successful and took more time completing.

The same tasks on the web than people ages 21 to 55, their relative satisfaction was higher.

The survey found children do not distinguish between content and advertising, and are much more likely to click onto online ads. The studies also discovered children rarely scroll pages, and are willing to read instructions, especially young girls. Young boys were more likely to spend time with their computers alone.

Senior citizens had a harder go of it navigating around the Internet, but they also reported having a more satisfying time online.

"What did surprise us is what good sports the seniors were about it," said Nielsen. "They tended to see the positive parts in generally negative experiences. They enjoyed a good challenge."