The Me and the Us of Emotions: a cluster-randomized controlled trial of the feasibility and efficacy of a compassion-based social-emotional learning program for children.

There are well-established benefits of social and emotional learning (SEL) programs for children within educational contexts. Combining social-emotional skills and compassion abilities has been seldomly done, and it may be valuable at individual and societal levels, for resilient, empathetic, and inclusive societies. This study explored the feasibility and efficacy of a program designed to promote socioemotional and compassion skills in children attending the 3rd and 4th grades, by using in-class dynamics complemented with serious games. This program, named "The Me and the Us of Emotions," is part of the Gulbenkian Knowledge Academies 2020 and consists of 10 group sessions embedded in the school curriculum. Using a cluster-randomized controlled trial design, school classes were allocated to intervention (classes, n = 8; children, n = 163) and control groups (classes, n = 6; children, n = 132). During the program, facilitators assessed adherence to the sessions' plan, attendance, dosage (i.e., how many sessions were delivered), and participant responsiveness. Children completed self-report measures of social-emotional skills and emotional climate at pre-, post-intervention, 3-month, and 6-month follow-ups. Results indicate that the program is feasible, with high adherence, high attendance rate, and participant responsiveness. Results also indicate empathy, soothing, and drive feelings to change from pre-intervention to all other assessment moments, for the intervention group only. Moreover, cooperation and threat changed over time for participants in both the control and the intervention groups. The current study offers empirical support for the feasibility and utility of a compassion-based social-emotional learning program on promoting children's empathy, and emotions of soothing and vitality in the school context. Thus, these findings contribute to recent research on the potential added value of compassion practices within an SEL program.

Mother-infant bonding in the first nine months postpartum: the role of mother's attachment style and psychological flexibility.

INTRODUCTION: Mother's bond to the infant in the postpartum period plays an important role in the subsequent mother-infant relationship and the infant's socio-emotional functioning. Several maternal characteristics, such as attachment style and psychological flexibility, may contribute to the quality of mother-infant bonding, though literature examining these variables is still scarce. The present study aimed to examine the impact of mother's attachment on mother-infant bonding in the first month postpartum and the mediating role of psychological flexibility on that association. METHODS: Participants were 226 mothers of an infant up to 9 months old, who reported on their own attachment style (in terms of anxiety, comfort with proximity, trust in others), psychological flexibility (in terms of openness to experience, behavioural awareness, valued action) and mother-infant bonding. RESULTS: Results showed that mother's attachment anxiety predicted a bond with the infant directly and indirectly via mother's psychological flexibility, specifically through behavioural awareness and valued action. Trust in others had an impact on mother-infant bonding through behavioural awareness, whereas comfort with proximity influenced mother-infant bond indirectly, via valued action. Finally, mothers' civil status, schooling and number of children were relevant to better understand the variance of our mediating and dependent variables. DISCUSSION: Our findings highlight the importance of mother's attachment and psychological flexibility in promoting the quality of mother-infant bonding, which can inform future intervention programmes targeting modifiable factors, such as psychological flexibility, to promote early positive parent-infant relationships, particularly for single, first-time mothers, with higher levels of education.

Psychological inflexibility explains social anxiety over time: a mediation analyses with a clinical adolescent sample.

Social Anxiety Disorder (SAD) has its usual onset during adolescence when it is a highly prevalent and debilitating condition. Evidence regarding the processes that underline social anxiety and SAD is not compelling, especially in adolescents. Within an Acceptance and Commitment Therapy (ACT) framework, the causal role of ACT processes on adolescents' social anxiety and how these processes contribute to sustain social anxiety over time is still unknown. Hence, this study explored the role of psychological inflexibility (PI) and acceptance and committed action (as psychological flexibility processes) on social anxiety over time, in a clinical sample of adolescents. Twenty-one adolescents (Mage = 16.19, SD = 0.750) with a primary diagnosis of SAD completed a set of self-report measures assessing PI, acceptance (i.e., willingness to experience social anxiety symptoms), action (i.e., moving towards valued life directions despite social anxiety symptoms) and social anxiety. Path analysis was used to investigate a mediation model linking acceptance, committed action, and PI to social anxiety, directly and indirectly. Findings revealed that acceptance and action were negatively and directly associated with PI after 10-weeks. In turn, PI yielded a positive and direct effect on social anxiety after another 12-weeks. PI totally mediated the relation between acceptance and action and social anxiety, with significant indirect effects. Overall, findings offer evidence for the applicability of the ACT model to adolescent SAD and support the use of clinical interventions targeting PI to understand and alleviate adolescents' social anxiety.

Psychometric properties of the University of California Los Angeles Loneliness Scale version 3: the European Portuguese version / Propiedades psicométricas de la Escala de Soledad de Los Ángeles versión 3: la versión portuguesa europea

Currently, the golden standard measure to assess loneliness is the University of California, Los Angeles Loneliness scale version 3 (UCLA v3). Objective. The aim of this study was to analyze the psychometric properties of UCLA v3 for the European Portuguese population. Method. A sample of 282 participants was surveyed in Portugal. Results. Confirmatory factor analysis (CFA) supported a model portraying a global loneliness bifactor solution for positive and negative wording items, which achieved optimal fitness. Multi-group CFA indicates scalar and metric invariance across gender. Loneliness test scores (global score, positive items and negative items) correlated with well-established mental health indicators such as psychological stress, depressive and anxiety symptomatology, or psychological inflexibility. Internal consistency of the loneliness test scores was optimal for the global measure (a = .91; ? = .91) as well as for the positive (a = .87; ? = .87) and the negative factors (a = .86; ? = .88). Conclusions. Results support UCLA v3 as a reliable and valid measure of loneliness for future research studies interested in examining the prevalence of loneliness and impact in health in the context of Covid-19 in the Portuguese population and as a health indicator in health promotion and clinical.(AU)

Actualmente, la medida estándar mayormente utilizada para evaluar la soledad es la versión 3 de la escala de Soledad de la Universidad de California de Los Angeles (UCLA v3). Objetivo. Analizar las propiedades psicométricas de UCLA v3 para la población portuguesa europea. Método. Una muestra total de 282 personas fue encuestada en línea en Portugal. Resultados. El análisis factorial confirmatorio (AFC) respaldó un modelo que representa una solución global de soledad con dos factores relativos al contenido positivo y negativo de los ítems, y logrando un ajuste óptimo. El AFC multigrupo indicó invariancia métrica y escalar según género. Los puntajes de la prueba de soledad (puntaje global; ítems positivos e ítems negativos) correlacionaron con indicadores de salud bien establecidos como el estrés psicológico, la sintomatología depresiva y ansiosa o la inflexibilidad psicológica. La consistencia interna de los puntajes de la escala de soledad fue óptima tanto para la medida global (a = .91; ? = .91) como para las medidas positiva (a = .87; ? = .87) y negativa (a = .86; ? = .88). Conclusiones. Los resultados apoyan a la UCLA v3 como una medida confiable y válida de la soledad para futuros estudios de investigación interesados en examinar la prevalencia de la soledad y su impacto en la salud en el contexto de Covid-19 en la población portuguesa, y como un indicador de salud en programas de promoción de salud y de intervenciones clínicas.(AU)

Promoting a compassionate motivation in detained youth: A secondary analysis of a controlled trial with the PSYCHOPATHY.COMP program.

This study aims to assess the efficacy of the PSYCHOPATHY.COMP in promoting a compassionate motivation among male detained youth, also testing its role as a potential mechanism of change on the reduction of psychopathic traits. A treatment group (n = 58) and a control group (n = 61) answered a set of self-report measures on psychopathic traits, shame, fears of compassion, social safeness, self-compassion, and compassion for others at three timepoints: baseline, posttreatment, and 6 months' follow-up. Treatment participants attended the PSYCHOPATHY.COMP. Controls received the treatment as usual delivered at juvenile detention facilities. The treatment effects were tested with latent growth curve models. At baseline, no significant differences between groups were found. Results from latent growth curve models showed that condition was a significant predictor of change over time observed in all outcome measures, even after controlling for psychopathic traits scores. When compared with the control group, the treatment group showed a significant decrease on shame and fears of compassion and a significant increase on social safeness, self-compassion, and compassion for others over time (medium-to-large effect sizes; growth modeling analysis d ranging from .57 to .96). It was also observed that increases in self-compassion and, in some cases, decreases in fears of receiving compassion, were crucial to the decrease of psychopathic traits. These findings suggest that the PSYCHOPATHY.COMP is a promising approach to promote a compassionate motivation in these youth, strengthening their rehabilitation odds. Increasing self-compassion and decreasing fears of receiving compassion should be considered when designing intervention programs for detained youth. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The Prevalence of Adolescent Social Fears and Social Anxiety Disorder in School Contexts.

Social fears arise when fearing to be judged in social events. When these fears are intense, persistent, and debilitating, the individual may suffer from social anxiety disorder (SAD), which has its most frequent onset during adolescence and tends to be chronic. Still, evidence on the prevalence of social fears and SAD in adolescence is scarce. This study analyzed the prevalence of social fears and of SAD in Portuguese adolescents. Of the initial sample (n = 1495), 26% presented with intense self-reported social fears. Of those, 53.9% accepted to be further assessed for diagnosis, resulting in a point-estimate prevalence of adolescent SAD of 9.4%; this is slightly higher than previously found. Social performance was the most feared social event. Of the adolescents with SAD, 12.9% were receiving psychological intervention, 12.1% refused intervention, and 92 (65.7%) accepted intervention. Findings confirm SAD as a highly prevalent mental disorder among adolescents, particularly girls, and additionally, that most of these adolescents did not seek treatment but are willing to receive help if made available. Hence, schools should be invested not only in identifying vulnerable adolescents but also in providing diverse intervention options, tailored to their needs, and directing them to successful developmental trajectories.

Children's Perspectives on Using Serious Games as a Complement to Promoting Their Social-Emotional Skills.

The use of serious games may be an appealing and complementary way to motivate curriculum-based social and emotional learning (SEL); still, investigation into this potential usefulness is scarce. This study aims to address the usefulness of serious games within the program 'Me and Us of Emotions'. Specifically, we analyzed the differences in children's satisfaction in sessions that did or did not use serious games as a complement to the intervention, explored the contribution of using serious games to the global satisfaction with the program, and explored children's qualitative feedback regarding the sessions. The participants were 232 children (122 boys and 110 girls) aged between 8 and 12 years old (M = 9.09, SD = 0.80). The measures were based on the subjective appraisals of the sessions made by the participating children, including quantitative and qualitative assessments of the degree of satisfaction of the participants. The results showed that there were similar levels of satisfaction with the sessions that did or did not use serious games as a complement to the program. However, only satisfaction with the sessions that used serious games (and not satisfaction with the sessions that did not use them) contributed significantly to explaining both the enjoyment of the activities and the interest in the subjects. Satisfaction with serious games was significantly and positively associated with fun, easiness, ability to understand the session, and ability to cope with emotions. Qualitative analysis showed three main themes, namely: positive aspects, negative aspects, and opportunities for improvement of the program. Overall, these results indicate that children's satisfaction with the 'Me and Us of Emotions' program is related to serious games, suggesting the relevance of using this complementary tool more often when intervening with younger generations.

The role of self-compassion in the psychological (mal)adjustment of older adults: A repeated-measures study protocol.

PURPOSE: Self-compassion is associated with healthy ageing and may be a protection factor of older adults' mental health in face of negative life events and other factors such as insecure attachment. However, fear of self-compassion may constitute an obstacle to promoting self-compassion. The role of self-compassion on the psychological (mal)adjustment of older adults requires further research with robust designs, and fear of self-compassion has not been studied in this population. We will test the moderator and mediator role, respectively, of self-compassion and fear of self-compassion, and we will analyse the longitudinal developmental trajectories of these variables. METHODS: A repeated-measures design with three data collection moments across 6 months, using a sample (180-200 participants) of community residents aged ≥65 years. Data will be collected using traditional (i.e. pencil-and-paper questionnaires) and online (i.e. Google Forms) methods. Path analyses will be conducted to test moderation and mediation models. Latent growth curve analyses will be conducted to study the within-person change and between-person differences in change over time of self-compassion and fear of self-compassion. CONCLUSIONS: We expect that participants with higher self-compassion will show better psychological adjustment, regardless of attachment quality and negative life events. We expect that insecure attachment and more negative life events will increase the participants' fear of self-compassion, which will decrease their psychological adjustment. Additionally, we expect that self-compassion and fear of self-compassion will show stable developmental trajectories during 6 months. Our results will contribute to better understand protection factors of older adults' mental health, which may guide future psychological interventions.

Online Versus Classroom Teaching: Impact on Teacher and Student Relationship Quality and Quality of Life.

The student-teacher relationship (STR) has been consistently associated to positive and generalized outcomes, though its quality seems to be questioned in online teaching, which in turn has had a negative impact on students and teachers' wellbeing during school closures forced by the COVID-19 pandemic. The current work compared students and teachers' perceptions of STR quality and quality of life after online and after classroom teaching, and if STR quality relates with perceived wellbeing across those teaching modalities. Participants were 47 teachers (61.7% female, Mage = 47.85) and 56 students (48.2% female, Mage = 13.13), who self-reported on the quality of STR and quality of life twice: after 3 months of online teaching and after 3 months of classroom teaching. Quality of life remained stable across teaching modalities. Teachers perceived no differences in teacher-student quality across both moments; students perceived higher conflict after classroom teaching. Closeness in STR associated with increased wellbeing and the reverse was true for conflict, though diverse domains of quality of life were implicated across timings and across teachers and students. These findings concur to online teaching being an impersonal experience for students, where conflict is lower due to the absence of social stimuli; alternatively, teachers may be urged to use the STR as a resource to sustain better positive outcomes even when teaching online, both for them and for their students.

Measurement Invariance and Construct Validity of the Satisfaction With Life Scale (SWLS) in Community Volunteers in Vietnam.

Worldwide, the Satisfaction With Life Scale (SWLS) has become the most widely used measure of life satisfaction. Recently, an authorized Vietnamese-language version has been introduced. Using a convenience sample comprising community volunteers from Ho Chi Minh City (N = 1073), confirmatory support was found for the cross-national constancy of the one-dimensional structure underlying the SWLS. Corrected item-total polyserial correlations and Omega coefficient were satisfactory. Using multi-group confirmatory factor analysis, configural, metric, and scalar invariance of the SWLS factorial structure were tested by gender, age, marital status, income, and educational level. Strong evidence of scalar invariance was found for gender and education, on which relevant subgroups did not differ in terms of latent means. Partial scalar invariance was found for marital status (item 4 and 5) and income (item 4). Being involved in an intimate relationship or having a higher income were associated with higher latent means. Scalar invariance in relation to age was very poor. Accordingly, caution must be exerted when comparing age groups. A high SWLS score was predictive of good self-rated health. Implications of the findings are briefly discussed.

The Soft Skills Inventory: Developmental procedures and psychometric analysis.

When attending and participating in Higher Education, students face a multitude of personal, social, and work-related challenges, which may increase the risk of developing psychopathological symptomatology. To date, there is no instrument that grasps the non-technical skills that may help prepare students to respond to these challenges. This paper presents the development and psychometric properties of the Soft Skills Inventory (SSI). The inventory was developed based on theoretical and empirical findings on the skills associated with academic and professional success, and on students' perception. The SSI was tested with 2030 Portuguese students (of which 77.1% were female) using a two-stage approach: item calibration and model generation (n = 1033), followed by model validation (n = 997). Item calibration analyses led to retaining 49 items that were organized into six-factors: self-determination, resilience, empathy, assertiveness, social support, and teamwork. This measurement model was further validated and proved to be an invariant, and thus credible, tool to compare male and female students on those relevant skills. All measures attained good internal consistency, with alphas ranging from .76 to .88. Female students scored significantly higher than males on self-determination, empathy, social support and teamwork. On the other hand, male students scored significantly higher on resilience. No significant differences were found between men and women for assertiveness. Psychometric analysis showed that the SSI is a reliable and valid instrument to evaluate students intra and interpersonal skills. The SSI may help identify gaps in soft skills and guide targeted interventions to support a more positive student experience in Higher Education.

Remotely delivered cognitive therapy for social anxiety disorder in adolescence: Preliminary efficacy evidence based on changes throughout treatment.

Cognitive therapy has been established as the frontline treatment for adults with social anxiety disorder (SAD); its efficacy with socially anxious adolescents is incipient but promising. This work investigated change in social anxiety symptoms reported by adolescents and their therapist as they go through remotely delivered 10-session cognitive therapy (i.e., CT@TeenSAD). Participants were 21 adolescents (81% females; M age = 16.10) diagnosed with SAD. They reported on change on their social anxiety symptoms at the beginning of each session; their therapist reported on how their symptoms had improved at the end of each session. Results, though preliminary, show that sessions had a significant impact on self- and therapist reported change, with consistent and continuous improvement across intervention sessions. Gender did not impact on that change, but therapist did: though the same pattern of change emerged for both therapists, it was more evident for the therapist with the greatest previous clinical experience. Overall, current findings align with the cognitive therapy framework of progressive gains throughout therapy. They also add evidence on the applicability and usefulness of an online cognitive approach to adolescents diagnosed with SAD.

The efficacy of the PSYCHOPATHY.COMP program in reducing psychopathic traits: A controlled trial with male detained youth.

OBJECTIVE: To assess the efficacy of the PSYCHOPATHY.COMP program in reducing psychopathic traits among male detained youth. METHOD: In this controlled trial, a treatment group (n = 58) and a control group (n = 61) answered the Youth Psychopathic Traits Inventory-Short (YPIS) and the Proposed Specifiers for Conduct Disorder (PSCD) at baseline, posttreatment, and 6-month follow-up. Treatment participants attended the PSYCHOPATHY.COMP; controls only received Treatment As Usual (TAU). Treatment effects were tested with latent growth curve models (LGCM). RESULTS: At baseline, no significant differences between groups were found. Results from LGCM showed that condition was a significant predictor of change over time observed in almost all outcome measures. Concerning the YPIS, treatment participants presented a significant decrease both in the total score and in the YPIS factors scores when compared with the controls (medium/large effect sizes; growth modeling analysis-GMA d ranging from .58 to 1.12). Considering the PSCD, treatment participants also showed a significant decrease both in the total score and in the PSCD factors scores (except for the grandiose-manipulative factor) when compared with controls (medium effect sizes; GMA d ranging from .53 to .72). Results also showed that treatment effects were maintained 6 months after the PSYCHOPATHY.COMP completion. CONCLUSIONS: Findings indicate that the PSYCHOPATHY.COMP is a promising treatment approach to reduce psychopathic traits among male detained youth, suggesting that interventions targeting these traits should be considered in their rehabilitation, as the absence of tailored interventions may increase the levels of psychopathic traits and their associated risks. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Effectiveness of Mobile App-Based Psychological Interventions for College Students: A Systematic Review of the Literature.

Serious mental health disorders are increasing among college students and university counseling services are often overburdened. Mobile applications for mental health have been growing exponentially in the last decade and they are emerging in university settings as a promising tool to promote and intervene in college students' mental health. Additionally, considering the recent covid-19 pandemic, mHealth interventions, due to its nature and possibilities, may play an important role in these institutions. Our main objectives are to explore mhealth interventions in universities, regarding its conceptual framework, acceptability and efficacy outcomes and understand its impact and contributions to address treatment delivery and psychological difficulties resulting from covid-19 pandemic. The literature search was conducted in scientific databases, namely, Web of Science, Pubmed, and Scopus. A search in app stores was not conducted, thus regarding commercially available apps, only those found in our database search were included in our review. We selected studies with mobile applications addressing psychological interventions for college students. A total of 2,158 participants were included in the 8 selected studies and most interventions were delivered through mobile apps only and based in cognitive behavioral therapy. Results suggested that college students accept and adhere to these interventions and preliminary evidence of efficacy was demonstrated in different disorders, such as stress, anxiety, depression and risky behaviors such as alcohol and tobacco abuse and sexual knowledge. We conclude that universities, particularly college counseling services, may benefit from mhealth interventions, not only to address college students' mental health but to decrease some of its difficulties related to lack of human resources. Specifically in covid-19 pandemic context, these interventions may contribute significantly by promoting and delivering psychological interventions at a safe distance.

The Children's Revised Impact of Event Scale: Dimensionality and Measurement Invariance in a Sample of Children and Adolescents Exposed to Wildfires.

Natural disasters are potentially traumatic events due to their disruptive nature and high impact on social and physical environments, particularly for children and adolescents. The present study aimed to examine the psychometric properties of the Children's Revised Impact of Event Scale (CRIES-13) in a sample of Portuguese children and adolescents exposed to a specific type of natural disaster (i.e., wildfire). The sample was recruited at six school units of the Central region of Portugal following wildfires in the summer of 2017 and included children and adolescents without a clinical diagnosis of a psychopathological condition associated with exposure to the traumatic event (i.e., nonclinical sample, n = 486) and those with a clinical diagnosis of a trauma- and/or stress-related disorder (i.e., posttraumatic stress disorder [PTSD], adjustment disorder, separation anxiety disorder, or grief; clinical sample, n = 54). Confirmatory factor analyses indicated that a two-factor model (i.e., Intrusion/Arousal and Avoidance) provided a better fit than a three-factor model (i.e., Intrusion, Arousal, and Avoidance) and was found to be invariant across gender and age groups. The CRIES-13 showed good reliability for all subscales, with Cronbach's αs > .79. Higher CRIES-13 scores were associated with poorer health and well-being and more internalizing and externalizing problems. The clinical sample presented with significantly higher CRIES-13 scores than the nonclinical sample, ηp 2 = .13. These results contribute to the cross-cultural validation of the CRIES-13 and support its use as a reliable and valid measure for assessing posttraumatic symptoms in children and adolescents.

Psychometric Properties of the Portuguese Version of the Child Post-traumatic Cognitions Inventory in a Sample of Children and Adolescents Following a Wildfire Disaster.

This study aimed to examine the psychometric properties of the Child Post-Traumatic Cognitions Inventory (CPTCI) in a sample of Portuguese children and adolescents, following the exposition to a wildfire disaster. The sample included 533 children and adolescents living in regions exposed to the wildfire disaster (non-clinical sample: n = 483; clinical sample: n = 50). The short form of the instrument (CPTCI-SF) including two correlated factors ('Sense of Disturbing and Permanent Change' and 'Sense of Being a Fragile Person in a Scary World') showed good model fit and was invariant across gender and age-groups. Good internal consistency (> .70) was found, and higher CPTCI scores were associated with poorer adjustment indicators. The clinical sample presented significantly higher CPTCI scores than the non-clinical sample. These results contribute to the cross-cultural validation of the CPTCI and support the adequacy of its short form as a reliable and valid measure to be used with Portuguese children and adolescents.

The Impact of Adolescents' Attachment to Peers and Parents on Aggressive and Prosocial Behavior: A Short-Term Longitudinal Study.

This short-longitudinal study analyzed the cross-sectional and longitudinal pathways linking adolescent's quality of attachment to parents and peers and their practice of aggressive and prosocial behavior; it also explored the moderation effect of gender on those pathways. A total of 375 secondary school students (203 girls and 172 boys), aged between 15 and 19 years old, completed the Inventory of Parent and Peer Attachment and the Peer Experience Questionnaire - Revised twice, within a four-month gap. Using a path analyses approach, results showed that aggression and prosocial behavior were the strongest predictors of themselves overtime. Attachment to mother had a cross-sectional effect on aggression and on prosocial behavior via attachment to peers, and attachment to peers predicted prosocial behavior; overall, the higher the quality of attachment, the lowest the practice of aggression and the highest the practice of prosocial behavior. These effects held stable for boys and girls, though gender-based differences were found in mean levels of attachment to peers and social behaviors. Even if other variables may be in place when understanding adolescents' social behaviors, attachment to mother and peers also seem to play a relevant role in trying to achieve safer and more positive school climates. Suggestions on how to accomplish this are shortly discussed.

Reliability and Factor Structure of the 10-item Kessler Psychological Distress Scale (K10) among Portuguese adults.

The 10-item Kessler Psychological Distress Scale (K10) has been presented as a valid measure to assess psychological distress levels in population surveys but its dimensional structure was not consensual. Our main objective was to provide a Portuguese version of the K10 exploring the reliability and factor structure of this measure. This cross-sectional study included 694 adults collected from a web-based survey and in training entities. Results showed that 37.9% of the individuals reported significant distress symptoms. A good internal consistency of the K10 scale (α=.91) and strong inter-item correlation (ranges from .350 to .659) were found in our study but the original one-dimensional structure was not confirmed. A two-factor model considering anxiety and depression as two latent, independent but correlated factors shows a good fit with the data even across two data collection methods. The K10 tool was sensitive to sociodemographic variables. Participants aged 40 or over and belonging to the general working class presented higher distress levels. Our data indicates the Portuguese version of K10 as a reliable tool with a factor structure to assess psychological distress.

Reliability and Factor Structure of the 10-item Kessler Psychological Distress Scale (K10) among Portuguese adults / Confiabilidade e Estrutura Fatorial da Escala de Distress Psicológico de Kessler de 10 itens (K10) entre adultos Portugueses

Abstract The 10-item Kessler Psychological Distress Scale (K10) has been presented as a valid measure to assess psychological distress levels in population surveys but its dimensional structure was not consensual. Our main objective was to provide a Portuguese version of the K10 exploring the reliability and factor structure of this measure. This cross-sectional study included 694 adults collected from a web-based survey and in training entities. Results showed that 37.9% of the individuals reported significant distress symptoms. A good internal consistency of the K10 scale (α=.91) and strong inter-item correlation (ranges from .350 to .659) were found in our study but the original one-dimensional structure was not confirmed. A two-factor model considering anxiety and depression as two latent, independent but correlated factors shows a good fit with the data even across two data collection methods. The K10 tool was sensitive to sociodemographic variables. Participants aged 40 or over and belonging to the general working class presented higher distress levels. Our data indicates the Portuguese version of K10 as a reliable tool with a factor structure to assess psychological distress.

Resumo A Escala de Distress Psicológico de Kessler de 10 itens (K10), é apresentada como uma medida válida para avaliar o distress psicológico em pesquisas populacionais, mas a sua estrutura dimensional não é consensual. O objetivo do presente estudo foi providenciar uma versão Portuguesa do K10 explorando a confiabilidade e a estrutura fatorial desta medida. Este estudo transversal incluiu 694 adultos, recrutados através de uma pesquisa via web e em entidades formadoras. Os resultados mostraram que 37,9% dos indivíduos reportaram sintomas de distress significativos. A escala K10 apresentou uma boa consistência interna (α= 0,91) e fortes correlações inter-item (entre 0,35 e 0,66). No entanto, a estrutura unidimensional original não foi confirmada. Um modelo dois fatores considerando a ansiedade e a depressão como dois fatores latentes independentes, mas correlacionados mostrou um bom ajuste mesmo entre os dois métodos de recolha. A ferramenta K10 foi ainda sensível para variáveis sociodemográficas. Participantes com 40 anos ou mais e que pertenciam à classe trabalhadora geral apresentaram maiores níveis de distress psicológico. Os dados obtidos indicaram que a versão Portuguesa do K10 é uma ferramenta confiável com uma estrutura fatorial para avaliar sintomas não específicos de distress.

Factorial Structure of the Morningness-Eveningness-Stability-Scale (MESSi) and Sex and Age Invariance.

Assessing morningness-eveningness preferences (chronotype), an individual characteristic that is mirrored in daily mental and physiological fluctuations, is crucial given their overarching influence in a variety of domains. The current work aimed to investigate the best factor structure of an instrument recently presented to asses this characteristic: the Morningness-Eveningness-Stability-Scale improved (MESSi). For the first time, the originally proposed three-factor structure was pitched against a uni- and a two-factor solution. Another novelty was to establish that the best-fitting model would be invariant in relation to sex and age, two variables that influence chronotype. A Confirmatory Factor Analyses on the data obtained from a sample of 2096 German adults (age: 18-76; M = 25.5, SD = 7.64) revealed that the originally proposed three-factor structure of the MESSi - Morning Affect, Eveningness, and Distinctness - was the only one to achieve acceptable fit indicators. Furthermore, each scale obtained good internal consistency. In order to assess age invariance, following the literature on development and chronotype, our sample was divided into three age groups: 18-21 years, 22-31 years, and 32 years or older. Full measurement invariance of the three-factor model was found for sex and age. Regarding differences between sexes, females did not differ significantly from males in Morning Affect, but scored significantly lower on Eveningness and higher on Distinctness; this last result has been consistent across validation studies of the MESSi. With respect to age differences, the oldest group scored lower on Eveningness and Distinctness in comparison with the other two age-groups; the intermediate group (age: 22-31) scored lower on Morning Affect when compared to both the younger and older age groups. Additionally, both Eveningness and Distinctness were negatively correlated with age. This latter relation has been consistently reported in other validation studies. Our results reinforce the idea that the MESSi assesses three different components of chronotype in a reliable manner and that this instrument can be used to explore sex and age differences.