“…Specialized literature tends to use this group in studies similar to this one (for example, Liang & Lai, 2002;Lee & Benbasat, 2003;Jahng, Jain & Ramamurthy, 2007) for various reasons, five of which are linked to the analyzed market and two of which relate to experimental design: (i) the composition of the sample by ages ranging between 18 and 30 allows the study to examine the group of Spanish consumers who make the greatest amount of Internet purchases (Urueña, 2013); (ii) their familiarity with the acquisition of the product that is the subject of this study strengthens the validity of this experiment (Lynch, 1982;Calder, Phillips & Tybout, 1982); (iii) university students differ from the general population on their intensive and regular use of the Internet, making them considerably more expert online purchasers as compared to the general public (Kirkbride & Soopramanien, 2010); (iv) they are especially active individuals in regards to the Internet, filtering and disseminating information, opinions and beliefs regarding the content and websites, developing a very significant role as online experts (Shih, 2006;Larsen, Urry & Axhausen, 2007); (v) this group has a greater probability of becoming online purchasers as compared to other consumers (Park, Lennon & Stoel, 2005); (vi) maintaining the homogeneity of the subjects, a necessary aspect in order to contrast theories based on the experimental design (Lynch, 1982;Sternthal, Tybout & Calder, 1994); although the use of young students restricts extrapolation of the results to other populations, it is considered ideal for validating theories (Chang & Wildt, 1996); and (vii) the need for the subjects to be situated in a computerized classroom in order to view the fictitious internet offers and respond to the different questions makes this an ideal group based on accessibility and operability.…”