The assessment of transdiagnostic dimensions of emotional disorders: Validation of the Multidimensional Emotional Disorders Inventory (MEDI) in adolescents with subthreshold anxiety and depression.

BACKGROUND: The transdiagnostic approach to psychopathology has emerged as an alternative to traditional taxonomic approaches. The Multidimensional Emotional Disorders Inventory (MEDI) is a specifically designed self-report to measure the transdiagnostic dimensions proposed by Brown and Barlow (2009). This study aims to analyse the psychometric properties of the MEDI scores in adolescents with subthreshold anxiety and depression. METHOD: The sample consisted of a total of 476 students. The mean age was 13.77 years (SD = 1.43) (range 10 to 18 years), 73.9 % were females. Several questionnaires assessing positive affect, negative affect, mental health difficulties, and quality of life were used. RESULTS: The original 9-factor structure of the MEDI was confirmed with good fit indices. Satisfactory levels of internal consistency were observed in most of the MEDI scores using McDonald's Omega, ranging from 0.58 to 0.87. The MEDI dimensions were associated with psychopathology, positive affect, negative affect, and quality of life. LIMITATIONS: Reliance on self-reported data, a cross-sectional design limiting temporal assessment, and a 73.9 % female gender imbalance. CONCLUSION: The MEDI scores showed adequate psychometric properties among adolescents with subclinical emotional symptoms. The results found might have potential clinical implications for conceptualization, assessment, intervention, and prevention of emotional disorders at both clinical and research levels.

Psychometric Properties of the Spanish Version of the Parental Feeding Style Questionnaire.

BACKGROUND: There are no validated instruments in Spain for measuring parental feeding styles. The aim was to validate the Parental Feeding Styles Questionnaires (PFSQ) in a Spanish sample. METHOD: A total of 523 mothers of 523 school-children participated. The children had a mean age of 4.4 years (SD = 1.3), with 51% being boys (M = 4.3 years, SD = 1.4) and 49% girls (M = 4.5 years, = SD 1.3). The PFSQ and the Comprehensive General Parenting Styles Questionnaire (CGPQ) were used. RESULTS: A model of four correlated factors was identified: Prompting/encouraging eating, emotional feeding, instrumental feeding, and control over eating. Cronbach's alpha for the subscales ranged from 0.64 to 0.86, and McDonald's Omega coefficient ranged from 0.66 to 0.86. Emotional feeding and prompting/encouraging eating had values above 0.70, control over eating had a value of 0.68 and instrumental feeding had an alpha coefficient of 0.64 and omega coefficient of 0.66. The factor structure was similar to the original and to other adapted versions. The Spanish sample used more control over eating and prompting/encouraging to eat. CONCLUSIONS: The adapted PFSQ is a suitable instrument for assessing the feeding styles of Spanish parents.

The role of mentalizing in the relationship between schizotypal personality traits and state signs of psychosis risk captured by cognitive and perceptive basic symptoms.

Objective: Schizotypal traits and disturbances in mentalizing (the capacity to understand the mental states driving one's own and others' behaviors) have been implicated in increased vulnerability for psychosis. Therefore, we explored the associations linking schizotypal traits, mentalizing difficulties and their interactions to clinical high-risk for psychosis (CHR-P), as captured by the Basic Symptoms (BS) approach, during adolescence and young adulthood. Methods: Eighty-seven adolescents and young adults from the general population (46% male, 44% female; age: 14-23 years) were assessed with the Schizophrenia Proneness Interview (SPI-CY/A) for 11 perceptive and cognitive BS, with the Schizotypal Personality Questionnaire (SPQ) for schizotypal traits, and with the Reflective Functioning Questionnaire (RFQ) for self-reported mentalizing abilities. The RFQ evaluates the level of certainty (RFQc scale) and uncertainty (RFQu scale) with which individuals use mental state information to explain their own and others' behaviors. Results: Logistic regression models showed significant positive effects of the SPQ disorganization scale on perceptive BS and of the SPQ interpersonal scale on cognitive BS. Post-hoc analyses revealed that schizotypal features pertaining to odd speech and social anxiety, respectively, were associated with perceptive and cognitive BS. Furthermore, higher scores on the RFQu scale and lower scores on the RFQc scale independently explained the presence of cognitive BS. Finally, significant interaction effects between RFQc and SPQ odd speech on perceptive BS, and between RFQc and SPQ social anxiety on cognitive BS were found. Conclusion: Our findings suggest that schizotypal traits and mentalizing significantly relate both independently and through their interactions to the presence of cognitive and perceptive BS included in CHR-P criteria. Furthermore, mentalizing dysfunction may contribute in the relation between schizotypal traits and early state signs of CHR-P. Mentalizing may support both detection and early treatment of CHR-P among adolescents and young adults who present with trait risk for psychosis.

Youth screening depression: Validation of the Patient Health Questionnaire-9 (PHQ-9) in a representative sample of adolescents.

BACKGROUND: Depression symptoms and mood disorders constitute one of the major public health challenges among youths. Thus, early prevention and intervention for depression should be a priority. The main goal of the present study was to validate the Patient Health Questionnaire-9 (PHQ-9) scores in a school-based sample of non-clinical adolescents. METHOD: Stratified random sampling was conducted. Participants were 2235 students (M = 14.49, SD =1.76, range= 12-18 years), 52.9 % were female, from 34 secondary schools in Spain. Several previously validated self-reported questionnaires of mental health and psychopathology were administrated. RESULTS: The unidimensional factorial model of the PHQ-9 items showed adequate goodness of fit indices. Strong measurement invariance across gender was found. Omega for the PHQ-9 total score was 0.87. The PHQ-9 total score was positively associated with anxiety symptoms and emotional and behavioral problems, and negatively associated with prosocial behavior and quality of life. CONCLUSIONS: The PHQ-9 is a brief, easy, and reliable tool for assessing self-reported depressive symptoms in both clinical and school settings. PHQ-9 may be used as a screening tool for universal early detection and monitorization of depression symptoms during adolescence.

Problematic Internet Use in adolescents: New psychometric evidence for the Spanish short form of the Compulsive Internet Use Scale.

OBJECTIVES: Problematic Internet Use (PIU) has become a worldwide problem in recent years. Among screening instruments for PIU, the Compulsive Internet Use Scale (CIUS) is perhaps the most widely used. Psychometric properties of the full CIUS are not convincing, however, and the short form (CIUS-S) has shown promising results, albeit limited to the English version, with little evidence in Spanish. Therefore, the aim of the present work was to study the psychometric properties of the CIUS-S scores in a large sample of Spanish adolescents. METHOD: The sample consisted of 1790 participants, 816 male (45.6%), 961 female (53.7%), and 13 other (0.7%) . Mean age was 15.70 years (SD = 1.26). RESULTS: The five-items one-dimensional model displayed appropriate goodness-of-fit indices. Strong measurement invariance model across age and partial across gender was found. Furthermore, the CIUS-S was positively associated with several indicators of poor well-being and mental health, and negatively associated with prosocial behavior, self-esteem, and feeling of belonging. CONCLUSION: Overall, the CIUS-S scores appear reliable and valid in its Spanish version for adolescent populations, supporting its aim to detect and prevent a problem that has become a major worldwide issue in the last years.

Parental Support and Gender Moderate the Relationship Between Sexual Orientation and Suicidal Behavior in Adolescents.

BACKGROUND: The scientific literature indicates that people from sexual minorities may be at increased risk for mental health difficulties. Moreover, parental support could play a protective role against poor mental health. The objective of this study was to examine whether a person's sexual orientation was related to a greater risk of mental health problems in a representative sample of adolescents. In addition, the study analyzed the possible moderating effect of parental support in the relationship between sexual orientation and mental health, as also moderated by participant gender. METHOD: The sample consisted of 1790 secondary-school students. Indicators of emotional and behavioral difficulties, symptoms of depression, psychotic-like experiences, suicidal behavior, well-being, and self-esteem were assessed. RESULTS: The results indicated significant main effects of gender and sexual orientation. Having a diverse sexual orientation (i.e., lesbian/gay, bisexual and questioning) was related to increased risk of mental health difficulties. Moreover, the results showed a significant interaction effect of gender and sexual orientation on suicidal behavior. Finally, the results showed the moderating effect of parental support and gender in the relationship between sexual orientation and suicidal behavior. CONCLUSIONS: These findings highlight the importance of promoting sexual minority youths' mental health and well-being.

New Trends in Digital Technology-Based Psychological and Educational Assessment.

BACKGROUND: The emergence of digital technology in the field of psychological and educational measurement and assessment broadens the traditional concept of pencil and paper tests. New assessment models built on the proliferation of smartphones, social networks and software developments are opening up new horizons in the field. METHOD: This study is divided into four sections, each discussing the benefits and limitations of a specific type of technology-based assessment: ambulatory assessment, social networks, gamification and forced-choice testing. RESULTS: The latest developments are clearly relevant in the field of psychological and educational measurement and assessment. Among other benefits, they bring greater ecological validity to the assessment process and eliminate the bias associated with retrospective assessment. CONCLUSIONS: Some of these new approaches point to a multidisciplinary scenario with a tradition which has yet to be created. Psychometrics must secure a place in this new world by contributing sound expertise in the measurement of psychological variables. The challenges and debates facing the field of psychology as it incorporates these new approaches are also discussed.

Impact of lockdown on the addictive behavior of university students in La Rioja. / Impacto del confinamiento en la conducta adictiva de los universitarios riojanos.

One of the consequences of the COVID-19 health crisis was the general lockdown. Research shows that lockdown situations may cause changes in addictive behaviors. The objective of the present study was to analyze the impact of lockdown on the addiction pattern of university students in order to design interventions adjusted to the students' needs. The study was conducted through a non-probabilistic sample of 540 students, with a mean age of 22.3 years and a proportion of women of 69.3%. The results indicated a significant decrease in the consumption of tobacco, alcohol, and psychotropic drugs during the participants' lockdown, both in the number of users and in the amounts consumed. Regarding behaviors related to behavioral addictions, participants showed a significant increase in problematic Internet use and use of video games and eSports, although the level of gambling decreased. Despite the fact that consumption patterns were reduced due to changes in the leisure and free time patterns of this population subgroup, it was possible to identify some indicators that deserve attention due to their increase, such as relapses in smoking, an increase in the number of participants who drank alcohol on a daily basis and an increase in the level of discomfort related to the use of technology. The implications of the results are analyzed and possible actions demanded by the students are examined.

Una de las implicaciones de la crisis sanitaria de la COVID-19 ha sido el confinamiento de la población. La investigación previa muestra que las situaciones de confinamiento provocan cambios en las conductas adictivas. El objetivo del presente estudio fue conocer el impacto del confinamiento en el patrón de las adicciones de los y las estudiantes universitarios con la intención de diseñar intervenciones ajustadas a las necesidades de esta población. La muestra no probabilística estuvo compuesta por 540 estudiantes de la Universidad de La Rioja, con una media de edad de 22,3 años y una proporción de mujeres del 69,3%. Los resultados indicaron un descenso significativo en el consumo de tabaco, alcohol y psicofármacos durante el confinamiento de los y las participantes tanto en el número de consumidores como en las cantidades consumidas. Respecto a las conductas relacionadas con las adicciones comportamentales, los y las participantes indicaron un aumento significativo del uso problemático de Internet y de videojuegos y eSports, aunque descendió el nivel de juego de apuestas. A pesar de que los patrones de consumo se vieron reducidos por el impacto que el confinamiento tuvo en los patrones de ocio y tiempo libre de este subgrupo poblacional, se identificaron algunos indicadores merecedores de atención por su aumento, como recaídas en el consumo de tabaco, aumento del número de participantes que consumen alcohol a diario y aumento en el nivel de malestar relacionado con el uso de Internet. Se analizan las implicaciones de los resultados y se examinan posibles acciones demandadas por el estudiantado.

Assessing Cyberbullying in Adolescence: New Evidence for the Spanish Version of the European Cyberbullying Intervention Project Questionnaire (ECIP-Q).

The prevention of cyberbullying at school requires assessing its prevalence by means of brief measurement instruments with adequate psychometric properties. The present study aims to study the psychometric properties of the European Cyberbullying Intervention Project Questionnaire (ECIP-Q) in a sample of 1777 Spanish adolescents (54.1% women, M = 15.71 years; SD = 1.26), selected by stratified random cluster sampling. The two-factor model (victimization and aggression) displayed appropriate goodness of-fit indices. Configural measurement invariance model across gender was found. The omega reliability coefficient for the victimization subscale was 0.82, and for the aggression subscale was 0.68. The ECIP-Q scores were negatively associated with self-esteem and prosocial behavior, and positively associated with depression symptoms and emotional and behavioral difficulties. Significant differences were found between victim and non-victim groups, and between aggressor and non-aggressor groups on the same variables. Victims and aggressors scored lower on self-esteem, and higher on depression symptoms and emotional and behavioral difficulties than those not involved in cyberbullying situations. These findings contribute to demonstrate the satisfactory psychometric quality of the ECIP-Q scores as an assessment tool for cyberbullying in Spanish adolescents.

The Healthy Context Paradox: When Reducing Bullying comes at a Cost to Certain Victims.

Bullying remains one of the most serious problems affecting school systems around the world. The negative consequences of bullying in the short and long term have been widely documented, showing that victimized students are at greater risk of suffering psychosocial distress. In this paper, we first summarize the current situation of bullying prevention, adopting a contextual perspective, and briefly highlighting the characteristics of the most effective prevention programs. Secondly, we address a disturbing phenomenon detected in classrooms where bullying has been reduced through interventions and which has been termed "the healthy context paradox". In these healthier contexts, students who remain in a situation of victimization have been found to present poorer psychological adjustment after the intervention. Understanding the causes of this phenomenon may offer clues for the prevention of bullying. In this regard, we present three hypotheses recently proposed to explain the phenomenon. Finally, we offer some implications for the study and prevention of bullying derived from "the healthy context paradox".

Problematic Internet Use among adolescents: Spanish validation of the Compulsive Internet Use Scale (CIUS). / Uso Problemático de Internet en adolescentes: Validación en español de la Escala de Uso Compulsivo de Internet (CIUS).

Problematic use of the Internet among adolescents has risen in the last decade. The Compulsive Internet Use Scale (CIUS) is one of the most frequently internationally-used tools developed to assess Problematic Internet Use (PIU). However, evidence concerning its validity and reliability in its Spanish version for the adolescent population is currently lacking. Thus, the main goal of the present study was to analyse the psychometric properties of CIUS scores in a large sample of Spanish adolescents. The sample consisted of 1,790 participants (53.7% female, mean age = 15.70 years old, SD = 1.26). The one-dimensional model displayed appropriate goodness of fit indices after error covariance of five items were allowed to correlate. Strong measurement invariance was found for the one-dimensional model across age and gender. The McDonald's Omega coefficient for the total score was 0.91. Furthermore, PIU was positively associated with different indicators of poor wellbeing and psychological difficulties and negatively associated with prosocial behaviour, self-esteem and sense of belonging to the educational centre. The study provided evidence of validity for the CIUS, confirming its utility for screening PIU in non-clinical adolescents.

La Escala de Uso Compulsivo de Internet (Compulsive Internet Use Scale, CIUS) es uno de los instrumentos más empleados a nivel internacional para evaluar el Uso Problemático de Internet (UPI). Sin embargo, no existen evidencias de validez y fiabilidad de las puntuaciones de la versión española en población adolescente. Por ello, el principal objetivo de este estudio fue analizar las propiedades psicométricas de las puntuaciones de la CIUS en una muestra representativa de adolescentes españoles. La muestra contó con 1.790 participantes (53,7% mujeres, edad media = 15,70 años, DT = 1,26). El análisis de la estructura interna del instrumento mostró unos índices de bondad de ajuste apropiados para el modelo unidimensional después de que se permitiera correlacionar la covarianza de errores de cinco ítems. Se encontró invarianza de medición fuerte para el modelo unidimensional en las variables de edad y género. El coeficiente Omega de McDonald para la puntuación total fue 0,91. Además, el UPI se asoció positivamente con diferentes indicadores de malestar y dificultades psicológicas y negativamente con el comportamiento prosocial, la autoestima y el sentido de pertenencia al centro educativo. Este estudio arroja evidencias de validez de la CIUS, y sugiere que puede ser una herramienta apropiada para medir el UPI en adolescentes de la población general.

Development and Validation of a Brief Version of the European Bullying and Cyberbullying Intervention Project Questionnaires (EBIP-Q and ECIP-Q).

BACKGROUND: In order to prevent school bullying and cyberbullying, brief measurement instruments with adequate psychometric properties are required. The objective of this study was to develop a combined reduced version of the European Bullying Intervention Project Questionnaire (EBIP-Q) and the European Cyberbullying Intervention Project Questionnaire (ECIP-Q) for its use in the screening of bullying-related behaviors at school. METHOD: The sample consisted of 1777 students, between 14 and 18 years of age (M = 15.71; SD = 1.26), of which 54.1% were female. RESULTS: The resulting reduced version presents adequate psychometric properties with reliability coefficients between ω = .72 and ω = .82. Factor analyses indicate that both bullying and cyberbullying are structured around two factors: victimization and aggression. The correlations between the scores of the original version and the reduced version were adequate. Bullying and cyberbullying was associated with different indicators of socioemotional adjustment. CONCLUSIONS: The European Bullying and Cyberbullying Intervention Project Questionnaire Brief version (EBCIP-QB) seems to be brief, useful, and have adequate psychometric properties for the assessment of bullying and cyberbullying in Spanish adolescents.

Spanish normative data of the Strengths and Difficulties Questionnaire in a community-based sample of adolescents: Datos normativos españoles del Cuestionario de capacidades y dificultades (SDQ) en una muestra comunitaria de adolescentes.

Background/Objective: The Strengths and Difficulties Questionnaire self-report (SDQ-S) has been extensively used to assess mental health problems among children and adolescents. However, previous research has identified substantial age and country variation on its psychometric properties. The aim of this study was three-fold: i) to evaluate internal structure and measurement invariance of the Spanish version of the SDQ; ii) to analyze age and gender-specific effects on the SDQ subscales; and iii) to provide Spanish normative data for the entire age range of adolescence. Method: Data were derived from two representative samples of adolescents aged 14 to 19 years old, selected by stratified random cluster sampling years (N = 3378). Results: The reliability of the Total difficulties score was satisfactory, but some subscales showed lower levels of internal consistency. Confirmatory factor analysis supported the original five-factor model. Finally, results revealed that SDQ scores were influenced by the gender and the age of participants; thus, the normative banding scores and cut-off values were provided accordingly. Conclusions: This study validates the Spanish SDQ-S for the entire age range of adolescence. However, more cross-country and cross-age research is needed to better understand the inconsistent findings on SDQ reliability.

Searching for bridges between psychopathology and real-world functioning in first-episode psychosis: A network analysis from the OPTiMiSE trial.

BACKGROUND: Network analysis has been used to explore the interplay between psychopathology and functioning in psychosis, but no study has used dedicated statistical techniques to focus on the bridge symptoms connecting these domains. The current study aims to estimate the network of depressive, negative, and positive symptoms, general psychopathology, and real-world functioning in people with first-episode schizophrenia or schizophreniform disorder, focusing on bridge nodes. METHODS: Baseline data from the OPTiMiSE trial were analyzed. The sample included 446 participants (age 40.0 ± 10.9 years, 70% males). The network was estimated with a Gaussian graphical model, using scores on individual items of the positive and negative syndrome scale (PANSS), the Calgary depression scale for schizophrenia, and the personal and social performance scale. Stability, strength centrality, expected influence (EI), predictability, and bridge centrality statistics were computed. The top 20% scoring nodes on bridge strength were selected as bridge nodes. RESULTS: Nodes from different rating scales assessing similar psychopathological and functioning constructs tended to cluster together in the estimated network. The most central nodes (EI) were Delusions, Emotional Withdrawal, Depression, and Depressed Mood. Bridge nodes included Depression, Conceptual Disorganization, Active Social Avoidance, Delusions, Stereotyped Thinking, Poor Impulse Control, Guilty Feelings, Unusual Thought Content, and Hostility. Most of the bridge nodes belonged to the general psychopathology subscale of the PANSS. Depression (G6) was the bridge node with the highest value. CONCLUSIONS: The current study provides novel insights for understanding the complex phenotype of psychotic disorders and the mechanisms underlying the development and maintenance of comorbidity and functional impairment after psychosis onset.

Neurocognitive Functioning in Adolescents at Risk for Mental Health Problems.

BACKGROUND: The main goal of the study was to assess the neurocognitive performance in adolescents at high psychometric risk for mental health problems. METHOD: A sample of 48 participants at high risk for mental disorders and an age-gender matched healthy comparison group of 48 adolescents were identified from a community-derived sample of 1,509 adolescents. The Strengths and Difficulties Questionnaire problems and the University of Pennsylvania Computerized Neuropsychological Test Battery for children (included 14 tasks assessing five neurobehavioral domains: executive functions, episodic memory, complex cognition, social cognition, and sensorimotor speed) were used. RESULTS: Relative to healthy comparison participants, individuals at high risk showed significant impairments across almost all neurocognitive domains (executive functions, episodic memory, complex cognition, social cognition, and sensorimotor speed). CONCLUSIONS: These findings demonstrate that neurocognitive impairments can be shown in adolescents at high psychometric risk for mental health problems before the onset of more severe psychological problems.

Validation of a European Spanish adaptation of the Apathy Evaluation Scale-self-rated version (AES-S) in patients with schizophrenia.

INTRODUCTION: Apathy is a negative symptom of schizophrenia and is associated with poor real world functioning. Therefore, it is important to have validated psychometric instruments to assess this symptom. This is the first study to validate the Spanish adaptation of the self-rated version of the Apathy Assessment Scale (AES-S) in patients with schizophrenia. MATERIALS AND METHODS: Naturalistic, cross-sectional, validation study in 104 patients with schizophrenia evaluated using the following scales: Clinical Global Impression-Severity (CGI-S), Personal and Social Performance (PSP), Clinical Assessment Interview for Negative Symptoms (CAINS), Self-report of Negative Symptoms (SNS), Motivation and Pleasure Scale-Self-Report (MAP-SR), Calgary Depression Scale for Schizophrenia (CDSS), and Apathy Evaluation Scale-self-rated version (AES-S). RESULTS: Reliability: Internal consistency (Cronbach's alpha) was 0.908. Convergent validity: The Pearson correlation coefficient between AES-S and CAINS-MAP total scores was -0.483 (p<0.001). For SNS, total and avolition subscale scores were -0.803 and -0.639 (p<0.001), respectively. With the MAP-SR, the correlation coefficient was -0.727 (p<0.001). Divergent validity: The Pearson correlation coefficient between AES-S and PSP total scores was 0.504 (p<0.001). Furthermore, with the CDSS, the correlation coefficient was -0.431 (p<0.001). Discriminant validity: The AES-S discriminated between different levels of illness severity according to CGI-S scores. Factor analysis: A three-component solution explained 57.32% of the variance. Pearson correlations between coefficients were 1-2=0.265, 1-3=0.464, and 2-3=0.060. CONCLUSION: The Spanish AES-S is a reliable and valid instrument for assessing apathy in Spanish patients with schizophrenia. It seems to be appropriate for use in everyday clinical practice as a means of monitoring apathy in these patients.

Validation of a European Spanish-version of the Self-Evaluation of Negative Symptoms (SNS) in patients with schizophrenia.

INTRODUCTION: Negative symptoms can be grouped into five domains: apathy/avolition, anhedonia, asociality, alogia, and affective flattening. There are few validate self-rated measures that assess these five dimensions. Therefore, this study aimed to validate the Self-Evaluation of Negative Symptoms (SNS) in Spanish patients with schizophrenia. MATERIAL AND METHODS: Cross-sectional, validation study in 104 outpatients with schizophrenia evaluated using the Spanish version of the following scales: Clinical Assessment Interview for Negative Symptoms (CAINS), Positive and Negative Syndrome Scale (PANSS), Clinical Global Impression Scale for Schizophrenia (CGI-SCH), Personal and Social Performance (PSP), Motivation and Pleasure Scale - Self-Report (MAP-SR), 36-item Short-Form Health Survey (SF-36) and the Self-Evaluation of Negative Symptoms (SNS). RESULTS RELIABILITY: Internal consistency (Cronbach's alpha) was 0.915. Convergent validity: The Pearson correlation coefficient between MAP-SR and SNS Total scores was 0.660 (p<0.001). For PANSS-N, the correlation was 0.437 (p<0.005) and with the CAINS-Total was 0.478 (p<0.005). Divergent validity: The Pearson correlation coefficient between SNS and PSP was r=-0.372 (p≤0.001), and with SF-36 Physical and Mental Summary Component scores were r=-0.213 (p=0.066) and r=-0.144 (p=0.219), respectively. Discriminant validity: SNS Total scores were significantly statistically different according to the severity of the negative symptomatology rated by the CGI-SCH negative scale (p<0.001). CONCLUSION: The SNS is a reliable and valid instrument to self-rate the five domains of negative symptoms in patients with schizophrenia and seems to be appropriate for use in everyday clinical practice as a complementary measure to the evaluation performed by the clinician.

Study of Positive and Negative Affect and Neurocognitive Functioning in Adolescents.

The main purpose of the present work was to study neurocognitive performance of adolescents at risk for emotional difficulties. The sample included a total of 1,509 adolescents from stratified random cluster sampling. Derived from this sample, a group of high-risk (n = 92) and a comparison group (n = 92) were selected based on the short version of the Positive and Negative Affect Schedule (PANAS) for comparison on the University of Pennsylvania computerized neuropsychological test battery for children (PENN). A Multivariate analysis of covariance (MANCOVA) was performed taking the scores on the PENN as dependent variables and the two groups derived from the scores of the PANAS (at risk vs. comparison) as a fixed factor. Adolescents at high risk of presenting affectivity problems showed statistically significant differences in several different neurocognitive domains, in accuracy, λ = .820, F(9, 160,000) = 3.913, p < .01, partial η² = .180; speed, λ = .502, F(5, 88,000)= 17.493, p < .01, partial η² = .498; and efficiency, λ = .485, F(4, 89,000) = 23.599, p <.01, partial η² = .515. The high risk group showed lower neurocognitive performance than the comparison group. In addition, a positive statistically significant correlation was found between all the neurocognitive competences (p < .05). Results found in this study reveal that neurocognitive impairments can be shown in adolescents at psychometric high risk for emotional problems before transition to more severe psychological problems.