Teresa Braña

Cómo valoran los consumidores las extensiones de marca

ResumenLa extension de marca resulta una estrategia muy atractiva en el lanzamiento de un producto, por el ahorro que supone en publicidady el aprovechamiento que se saca del posicionamiento de la marca. No obstante, una mala planificacion de la extension puede acarrear serias consecuencias. Se ha demostrado que la percepcion que los consumidores tienen de una marca puede afectar a la aceptacion de sus extensiones. En este trabajo pretendenos ofrecer evidencias en torno al papel desempenado por variables como el estatus, el caracter abierto o dinamico de la marca, asi como el tipo de de extension. El principalresultado gira en torno a la importancia que tiene, precisamente, el tipo de extension. Solo si esta es percibida como continua o aparentemente logica, se tendran en cuenta otros criterios como estatus o dimamismo de la marca.

Relación entre el consumo de alcohol y otras drogas y el uso problemático de Internet en adolescentes

Alcohol and drug use among adolescents has been causing great concern for decades in Spain and in the European Union as a whole. In addition, the technology boom experienced over the last two decades has contributed to the emergence of a new public healthcare issue: problematic Internet use. The increasing importance that both problems have been gaining in recent years has led some authors to analyze the relationship between alcohol and the consumption of other drugs alongside problematic Internet use, and to provide relevant empirical evidence. Based on a sample of 3,882 Spanish adolescents aged between 12 and 18, the results obtained confirm that there is a relationship between the consumption of alcohol (measured by the AUDIT) and other drugs (measured by the CRAFFT and the CAST), and problematic Internet use (measured by the EUPI-a). Problematic Internet users among them not only have more significant levels of substance use, but also a three-times greater chance of developing hazardous drug use (39.4% vs 13.3%). This highlights the need to develop transversal prevention capable of acting on the common variables to both issues, beyond developing programs focused on specific behaviors. In this sense, values-based education and life skills training should be given priority in prevention.

Consumo intensivo de alcohol en adolescentes: prevalencia, conductas de riesgo y variables asociadas

According to the last Survey on Drug Use among Secondary School Students (ESTUDES 2014-2015), consumption levels of alcohol and other substances have decreased in the last years in Spain. However, available data on binge drinking remain worrying, given the negative consequences related with this pattern. The aim of this paper is to analyse binge drinking among adolescents, providing updated data on prevalence in addition to information about the consequences and some predictive factors of binge drinking. A correlational method was used for this purpose, comprised of administering a survey to Compulsory Secondary School, High School and Vocational Training students. Based on a sample of 3,419 Galician adolescents aged between 12 and 18 years (M = 14.57; SD = 1.76), the results show that binge drinking is a common and global practice, with few socio-demographic differences but related with a wide range of risk practices. Furthermore, variables such as consumption expectancies, consumption by family and friends, as well as curfew time and allowance money have been identified as interesting predictive factors that should be taken into account at the preventive level.

Cluster subtypes of the Spanish version of the California Verbal Learning Test in a sample of adults with subjective memory complaints

We examined subtypes of learning and memory by administering the California Verbal Learning Test (CVLT) to a sample of adults with memory complaints that included a subsample of healthy controls and another of participants with amnesic mild cognitive impairment. We performed two-stage cluster analyses for CVLT variables representing three main factors—General Verbal Learning, Inaccurate Memory, and Serial Effect. Four, three, and two reliable subtypes were differentiated in the total sample and in the two subsamples, respectively. Gender, age, education, reading habits, vocabulary, memory complaints, and general cognitive performance were meaningfully related to variability in the performance of the subtypes.

Identification and Characterization of Adolescent Internet User's Profiles.

The percentages of adolescent Internet use in general terms have been measured for nearly two decades now; however, it might be thought that not every teenager behaves online in the same way. This study aims to identify the different types or profiles of adolescents and to characterize them from an attitudinal, behavioral and socio-demographic viewpoint. A questionnaire was applied to a representative sample of 2,339 Compulsory Secondary School students (M = 13.77 years old) from Galicia (a North-Western region of Spain) for this purpose. A two-stage cluster analysis, based on the response pattern in relation to their attitudes toward Internet, was carried out. Four different segments with specific characteristics were identified: the first steppers, the trainees, the sensible users, and the heavy users. Besides the relevance of descriptive data, these results are of particular interest at an applied level, because they could lead to a better fit of programs to prevent risky behaviors and problematic Internet use in adolescents.

A taxonomic study of aggression in institutionalized delinquents

The taxonomy of aggressive behavior has been studied by many social scientists. In the present study this topic is approached empirically. A group of convicts were asked to quantify pairwise dissimilarity among aggressive social situations. The data obtained were processed by Multidimensional Scaling. The results show the necessity of taking into account 3 dimensions (justifiability, instrumentality and degree of involvement with the victim) in distinguishing among aggressive episodes. This finding is discussed in terms of cultural differences, and the usefulness of the perception of aggressive episodes as a basis for a taxonomic system is proposed.

Minors and problematic Internet use: Evidence for better prevention

Abstract The expansion of ICT has contributed to the emergence of a new issue of increasing importance: problematic Internet use. Addressing this phenomenon comes with the understanding that it is not isolated from other online risky behaviors or other common problems in adolescence, such as substance use. This suggests the desirability in identifying common factors that can guide preventive work. This empirical study based on a sample of 3772 Spanish adolescents aged between 12 and 17 years has allowed: a) to verify that the use of Internet and social networking sites is widespread; b) to demonstrate that problematic Internet use is associated with different online risky practices (contacting strangers, sexting, online gambling …), as well as substance use, and c) to identify personal variables related to problematic Internet use and online risky behaviors. The results obtained emphasize the relevance of relying on a transversal approach to prevention, based on values and life skills education.

Validación empírica del CRAFFT Abuse Screening Test en una muestra de adolescentes españoles

The CRAFFT Substance Abuse Screening Instrument, developed by the Center for Adolescents Substance Abuse Research (CeASAR) (Knight et al., 1999), is a screening tool for high-risk alcohol and drug risk consumption designed for use with adolescents. Since its publication it has been the subject of translations and validations in different countries, populations and contexts that have demonstrated its enormous potential. However, there is still no empirical validation study that would ensure its good psychometric performance in Spain. The aim of this paper is to develop an adapted version of the CRAFFT in Spanish and to analyze its psychometric properties in a sample of Spanish adolescents. For this purpose an individual interview was conducted on 312 adolescents aged between 12 and 18 years of age (M = 15.01; SD = 1.83) from the Galician community. The interview included a part of the Adolescent Diagnostic Interview (ADI) and the Problem Oriented Screening Instrument for Teenagers (POSIT). The results obtained, similar to those found in other countries, allow us to report that the Spanish version of the CRAFFT has a good psychometric behaviorproperties. It was found to have a satisfactory internal consistency with a Cronbach’s alpha value of .74. In terms of sensitivity and specificity, values of 74.4% and 96.4% respectively, were obtained and the area under the ROC curve was .946. The Spanish version of the CRAFFT is made available to researchers and professionals in the field of addictive behaviors, so that it can be used with the necessary psychometric guarantees.