The 12-Item General Health Questionnaire (GHQ-12): reliability, external validity and factor structure in the Spanish population

The purpose of this study was to analyze the internal consistency and the external and structure validity of the 12-Item General Health Questionnaire (GHQ-12) in the Spanish general population. A stratified sample of 1001 subjects, ages between 25 and 65 years, taken from the general Spanish population was employed. The GHQ-12 and the Inventory of Situations and Responses of Anxiety-ISRA were administered. A Cronbach's alpha of .76 (Standardized Alpha: .78) and a 3-factor structure (with oblique rotation and maximum likelihood procedure) were obtained. External validity of Factor I (Successful Coping) with the ISRA is very robust (.82; Factor II, .70; Factor III, .75). The GHQ-12 shows adequate reliability and validity in the Spanish population. Therefore, the GHQ-12 can be used with efficacy to assess people's overall psychological well-being and to detect non-psychotic psychiatric problems. Additionally, our results confirm that the GHQ-12 can best be thought of as a multidimensional scale that assesses several distinct aspects of distress, rather than just a unitary screening measure.     

Chronic sildenafil (Viagra) administration reduces anxiety in intact and castrated male rats

Epidemiological research indicates that sildenafil (Viagra) abuse is associated with increased risk behaviors. The present study employs the open field, a standard animal model used in the field of anxiety research, to examine whether chronic exposure to sildenafil affects anxiety and risk-taking behaviors in gonadally intact and castrated male Wistar rats. Sildenafil (10 mg/kg) or saline were administered three times a week for three weeks. Animals were tested once a week in the open field during and after drug treatment. Sildenafil treatment increased the number of center entries and time spent in the center in intact and castrated animals during and after treatment, suggesting that repeated drug use decreases anxiety. Sildenafil also restored the deficits in exploration and locomotion produced by castration, indicating that sildenafil effects on open field behaviors are independent of endogenous androgens. We caution against generalizing from this study to human behaviors, but propose that the behavioral effects produced by a chronic high dose of sildenafil warrant further studies into its abuse potential.     

Change of attitudes towards disability in primary school students

In this paper, the development and results of a program are presented, carried out with students in 3rd and 4th grade of primary school, 128 children aged from 8 y 10 years old, 75 assigned to the experimental group and 53 to the control group. In order to assess the changes achieved and whether they were maintained, a pre- and post-treatment Likert-scale of adjectives describing discapacities and a 3-year follow-up measure were applied. As in the previous applications of the program, the results suggest the efficacy of the program, that is, positive changes were achieved in the rating of terms related to disability as well as in the attitudes towards disabled people and these changes were maintained throughout the follow-up. In order to test their influence on attitudes, some variables considered determinants of attitudes toward disability were also contrasted, such as gender, age, acquaintance and experience with the topic of disability, disabled children's integration, and disability type.     

Achievement and social goals, persistence-effort, and intentions of sport practice in physical education students

The present study examined the relationship between achievement and social goals, and explored how both types of goals can affect secondary school students' persistence/effort in Physical Education classes, as well as their intention to participate in sport activities after finishing secondary school. A sample of 350 students (aged 15-17) from two high schools in Asturias participated in the study. Multiple regression analysis showed: a) persistence/effort in physical education classes was better explained by social responsibility goals, followed by mastery-approach goals and mastery-avoidance goals; b) achievement goals are the only predictors of young people's intention of practicing sport in the future. Differences were found in these results according to gender and course. These findings help us better understand the processes involved in Physical Education. Finally, implications to improve classes and to achieve young people's more active and higher level of implication in sports are discussed.     

Effects of the iodine deficiency on intellectual variables among children

An association between severe iodine deficiency and poor mental development has been found in many studies. We examined the relationship between moderate or mild iodine deficiency and intellectual capacity in order to determine whether problems common to severe iodine deficiency (including mental retardation) also emerge in a more subtle form. We also wished to know whether the classic methodology (comparing iodine-deficient zones with nondeficient zones) is the most adequate, and propose to combine this grouping by zones with urinary iodine presented by individuals in each zone. We measured IQ, manipulative and verbal capacity, attention, visual motor ability and disruptive behaviour, variables that have barely been studied in this kind of investigations. The sample comprised 760 schoolchildren from the province of Jaén (southern Spain). Our results show that children with low levels of iodine intake and with urinary iodine concentration lower than 100 microg/litre had a lower IQ and displayed more disruptive behaviour than children with high levels of the criteria. The other variables were not associated with iodine deficiency.     

Motivational climate and coaches' communication style predict young soccer players' commitment

The purpose of this research was to study the role of coaches' communication style and coach-created motivational climate in young soccer players' enjoyment and commitment. Four hundred and fifteen young soccer players of high competitive level in the age range from 14 to 16 completed the following questionnaires: a) coach-induced perceived motivational climate (PMCSQ-2), b) coaches' behaviour perception (CBAS-PBS), and c) sport commitment (SCQ). Results showed that coach-created motivational climate correlated highly with the perception of coaches' communication style. Moreover, coach-created motivational climate and communication style significantly determines players' sport commitment and enjoyment. Discussion focuses on the importance of seeking and training credible coaches that favours athletes' commitment.     

Influence of social models on alcohol use among adolescents

The aim of this study was to analyze the relationship between the consumption of alcohol among adolescents and that of their close model figures. The sample was made up of 536 secondary students from rural areas. Predictive models of alcohol consumption were established by means of logistic regression analysis and the criterion used was the consumption by parents, siblings, and the adolescent's best friend. It was observed that alcohol use of these models conditioned the adolescents' consumption; their attitude towards the drug, their intention to consume, their normative perception and perception of risk. The analysis revealed that the main predictor of alcohol use is the consumption by the best friend (OR = 13.04, IC 95% = 8.14-20.91), followed by the consumption by siblings (OR = 1.85, IC 95% = 1.12-3.04). The intention of consumption increases when the father is an alcohol user (OR = 2.70, IC 95% = 1.68-4.36), sibling (OR = 2.83, IC 95% = 1.56-5.15), and mainly best friend (OR = 4.33, IC 95% = 2.55-7.36).     

Orbitofrontal dysfunction in multiple sclerosis: Iowa Gambling Task

Cognitive dysfunction has been widely studied in multiple sclerosis (MS), however decision-making has been less investigated. The current study examined the decision-making processes of patients with multiple sclerosis (MS) using a computerized version of the Iowa Gambling Task (IGT). This task was applied to 18 patients with clinically diagnosed MS and 18 healthy control subjects matched for age, sex, and years of education. The results showed that IGT scores differ significantly between patients with MS and the healthy control subjects: the patients with MS made significantly less advantageous decisions than the controls in the IGT. Possible causes of impaired decision-making in multiple sclerosis are discussed.