Samples
The samples used in this study were 316 Mathayom Suksa 5 students from 7 upper secondary school in the academic year 2006 in Muang District, Nakhon Sawan Province. Mathayom Suksa 5 students are expected to have more skills in using the Internet for their study than lower level students, as seen in computer and Internet related courses appear in the syllabus of the Ministry of Education. Nakhon Sawan Province was chosen in this study because it is a big province in the lower-northern region of the country, with most schools well equipped and therefore suitable for a study concerning the Internet use. Only students in Muang District schools were selected due to the fact that Internet access is, in general, more available in Muang District than in other districts where telephone services may not yet cover all geographical areas