Which of the following in not a feature of Mass – Media education –

Mass media is employed for education of general public. it includes means like Television, Radio, Press. Films, Posters, Magazines, etc. Mass media are generally less effective in changing human behavior than individual or group methods because communication is one way. They are, however, valuable because they reach large number of people with whom there is no contact. With growing popularity of mass media and is easy availability, mass media has started taking care of local problems of the community as well It is easily understandable