Interactive relationships in online learning communities can influence the process and quality of knowledge building. The aim of this study is to empirically investigate the relationships between network structures and social knowledge building in an asynchronous writing environment through discussion forums in a learning management system. The quality of the knowledge construction process is evaluated through content analysis, and the network structures are analyzed using a social network analysis of the response relations among participants during online discussions. Structural equation modeling is used to analyze relations between network structures and knowledge construction. Working on data extracted from a 6-week distance-learning experiment, we analyzed how 10 groups developed collaborative learning social networks when participants worked together on case resolution. The results show a positive correlation between cohesion and centralization, and the positive influence of the cohesion index and the centralization index on social presence and cognitive presence in knowledge building. However, this must be understood within the context of social networks in which messages sent to all group members occupy the center. This underlines the need for reinforcing participations that are directed to the group as a whole, and the importance of the fact the network contains both central and intermediate members. By contrast, we propose that the combination of analysis techniques used is a good option for this type of study while recognizing that it is necessary to continue validating the instruments in terms of their own theoretical suppositions.

While life expectancy increases in developed countries and there is evidence that demonstrates the potential of the internet to optimise or compensate for the losses associated with ageing, there is a high proportion of older people who continue to be disconnected from the digital world. In this scenario, the technological support offered by public institutions has the potential to be an accessible source for the digital literacy of older people. This study, using the model of digital inequality, had the aim of analysing the ability of these institutional supports to determine and predict the digital inclusion of older people. The sample was retired adults (over 54 years) residing in Spain who are users of technological support services in four organisational contexts: nursing homes, senior community centres, University Programs for Seniors and adult education programmes. Through binary logistic regression analysis, we found that the ability of the availability of literacy support to determine and predict access, autonomy, skills and use of the internet for social connectivity depends on the social and organisational context of the technology support service. These findings support empirically the situated nature of technological support for the digital inclusion of older people and provide a useful comparative vision for the design of accessible support services adapted to the needs of its users.

In most of the European Union (EU) countries, including Spain, there has been an increase in the number of inhabitants aged 55 years or older. As of 2014, in the EU (27) more than 65% of the population uses the internet daily. However, among the elderly, the percentage is drastically lower. This type of occurrence is found in technologically advanced societies, and turns the older citizens into a forgotten collective. With the digital divide (defined as physical access to the internet) surmounted in these countries, a new divide is becoming apparent in terms of personal use and societal participation. In this article, through the use of multivariate analysis techniques, we identify a new divide in Andalusia, Spain, with respect to the frequency of access to new media and the use citizens make of them. We will discuss the influence of the elderly's immediate environment as a source of opportunity for the Information and Communication Technologies to improve our quality of life and as a medium for more active social participation.

The increase in the use of information technologies encompasses all educational and social issues, even changing intergenerational skills. It is considered that the most conditioned to this effect are adolescents and young people. This research is a literary review of various studies on addiction and Internet abuse and presents relevant results of the situation of college students and their level of Internet use. The study was developed in seven educational units of Ecuador, with a sample of n = 773 students (53.6% men and 46.4% women). An instrument with sufficient validation guarantees (α.94) has been applied, verified by means of a factorial analysis of main components, which determined two study factors in the use of the Internet and loss of control and interference with life. Through a statistical treatment (Pearson) a good correlation was established (,62) between the two study dimensions, which is a concern in the educational field.