Sydney: Wikipedia is the most highly rated website for providing information on mental-health related topics, a study reveals.

Researchers from the University of Melbourne assessed a range of online and print material on mental health-related topics and found that in the majority of cases, Wikipedia was the most highly rated in most domains.

Content about mental health was extracted from 14 frequently accessed websites, including Wikipedia, Encyclopaedia Britannica and a psychiatry textbook.

Text providing information about depression and schizophrenia was assessed, said a university statement.

The content was rated by experts according to: accuracy, how current the information is, breadth of coverage, referencing and readability. Ratings varied significantly between resources according to topic.

Researcher Nicola Reavley and her colleagues from Melbourne discovered that the quality of information on depression and schizophrenia on Wikipedia was generally as good as, or better than that provided by centrally controlled websites or psychiatry textbooks.

"We know that people seeking information about mental disorders want real-time answers and assistance with accessing help. The internet is instant and Wikipedia is often the first stop for people looking for definitions, explanations and information about suggested treatments," said Reavley.

"The internet provides extensive information about mental disorders that is accessed by consumers and carers. For some people in need, it is the first stop to the next stage of enquiring about services," she said.

"While there have been controversies about the accuracy of Wikipedia in the past and people are not always sure about trusting it -- this study suggests that people can trust it to a reasonable extent," added Reavley.

Reavley and her colleagues have constructed a website for young people interested in discussing and sharing their experiences of mental health conditions and treatments.