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Introduction: Cardiovascular reactivity refers to changes in blood pressure and heart rate in response to internal or external stimuli. Previous research has shown that excessively high and low cardiovascular reactivity are associated with an increased risk of cardiac problems. Dispositional optimism has been associated with numerous health benefits, including better cardiovascular responses to stressors, and reduced mortality risk. Conversely, pessimism has been associated with negative health outcomes and worse cardiovascular reactivity to stress. Mood, comprising positive and negative affect, can significantly impact psychological adjustment and physical health. Therefore, it is important to consider mood as a potential confounding variable in the link between optimism and cardiovascular reactivity. The study hypothesized that optimism and pessimism would still influence cardiovascular reactivity even when mood variables were controlled for. Methods: A within-subjects correlational design with 107 young adult participants was used. Sociodemographic and clinical questionnaires were administered to collect information on participants' characteristics. The Dispositional Optimism Scale (LOT-R) and the Positive and Negative Affect Scale (PANAS) were used to assess participants' levels of optimism, pessimism, and mood. Measures of cardiovascular reactivity, including systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR), were taken during a stressor task (PASAT). Results: There is a moderate positive correlation between dispositional optimism and positive affect, while pessimism demonstrated a moderate positive association with negative affect. Linear regression analyses were conducted, controlling baseline reactivity variables, gender, and body mass index. The results showed that pessimism had a significant negative effect on SBP reactivity, suggesting that higher levels of pessimism decreased SBP response. Optimism had a significant positive effect on DBP reactivity, while pessimism had a significant negative effect. Discussion: Overall, these results suggest that dispositional optimism and pessimism are related to cardiovascular reactivity, even after controlling for positive and negative affect. Pessimism was associated with lower SBP reactivity, while both optimism and pessimism influenced DBP reactivity. These findings are consistent with previous research indicating that optimism enables more effective stress management during challenging events, whereas pessimism can serve as a risk factor, heightening the likelihood of experiencing future cardiac issued caused by blunted cardiovascular reactivity.

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INTRODUCTION: The factor structure of the Positive and Negative Affective Schedule (PANAS) is still a topic of debate. There are several reasons why using Exploratory Graph Analysis (EGA) for scale validation is advantageous and can help understand and resolve conflicting results in the factor analytic literature. OBJECTIVE: The main objective of the present study was to advance the knowledge regarding the factor structure underlying the PANAS scores by utilizing the different functionalities of the EGA method. EGA was used to (1) estimate the dimensionality of the PANAS scores, (2) establish the stability of the dimensionality estimate and of the item assignments into the dimensions, and (3) assess the impact of potential redundancies across item pairs on the dimensionality and structure of the PANAS scores. METHOD: This assessment was carried out across two studies that included two large samples of participants. RESULTS AND CONCLUSION: In sum, the results are consistent with a two-factor oblique structure.

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Suicide, as one of the leading causes of death for the adolescent population, both in Chile and globally, remains a complex and elusive phenomenon. This research studies the association between positive and negative affect in relation with suicidal ideation and suicidal attempt, given that affectivity is a fundamental basis on which people make evaluations on their satisfaction with life. First, it examines the reliability, structure, and validity of Watson's positive and negative affect scale (PANAS) scale in a representative random sample of Chilean high school students (N = 4,568). The scale evidences strong reliability coefficients and a confirmatory factor analysis, excluding one positive (excited) and one negative (nervous) item. The scale shows a satisfactory goodness of fit. Secondly, it investigates the association of PANAS positive and negative affect scores with suicidal ideation as well as reported attempt in adolescents, controlling for the potential effect of age and sex (N = 420 high school students). Low positive and high negative affect, but not sex and age, show a significant association with suicidal ideation. Suicidal ideation totally mediates the association of affect with suicide attempt, as expected. Results are discussed regarding prevention and it considers how positive and negative affect can be relevant as indicators for prevention and treatment using widely available technology.

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We evaluated the factor structure, reliability, and discriminative capacity of the Positive and Negative Affect Schedule (PANAS) questionnaire in four different samples: two general adult populations (N = 1,548, N = 964), one adolescent population (N = 1,044), and young people with depressive symptomatology (N = 307). Exploratory factor analyses (EFAs) were performed with subsamples from Studies 1 (n = 773) and 2 (n = 527), finding that the two- and three-factor solutions had a good fit. In a confirmatory factor analysis, the two-factor solution resulted in an adequate fit in a second set of subsamples from both studies (n = 775, n = 517). In Study 3, we found good convergent and divergent validity with adequate and significant correlations found for depression (Beck's Depression Inventory), anxiety (State-Trait Anxiety Inventory), and neuroticism and extroversion (Big Five Inventory). In Study 4, the results of an EFA performed in a subsample (n = 154) found that the two- and three-factor solutions were appropriate with the former solution being confirmed in a second subsample (n = 153). Reliability was α = .85 for positive affect and α = .87 for negative affect. The PANAS questionnaire showed adequate indicators of validity and reliability in adult and adolescent populations as well as in a sample with depressive symptoms.

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Abstract In this research we analyzed the psychometric properties of the Positive and Negative Affect Schedule (PANAS) in samples coming from four independent studies: university students (Study 1, n = 392; Study 2, n = 395), general adult population (Study 3, n = 316), and athletes (Study 4, n = 533). Through confirmatory analyses we evaluated the following models: (a) two-factor model (Watson, Clark, & Tellegen, 1988), (b) three-factor model by Mehrabian (1997), (c) three-factor model by Gaudreau, Sánchez and Blondin (2006) and (d) bi-factor model (Leue & Beauducel, 2011), all of them in their oblique and orthogonal variants. Several models presented an acceptable fit, but only after allowing correlated errors and excluding the items alert and excited. While orthogonal solutions of the three models showed the best fit in Studies 2, 3 and 4, oblique solutions presented the best fit in Study 1. Cronbach's alpha, composite reliability and omega indexes oscillated between .55 and .89. Considering the original theoretical model and the practical utility of the PANAS, we favor the model of two orthogonal factors, excluding the aforementioned items.

Resumen En esta investigación analizamos las propiedades psicométricas del Positive and Negative Affect Schedule (PANAS) en muestras de cuatro estudios independientes: estudiantes universitarios (Estudio 1, n = 392; Estudio 2, n = 395), población general adulta (Estudio 3, n = 316) y atletas (Estudio 4, n = 533). Mediante análisis confirmatorios evaluamos los siguientes modelos: (a) dos factores (Watson, Clark & Tellegen, 1988), (b) tres factores por Mehrabian (1997), (c) tres factores por Gaudreau, Sánchez and Blondín (2006) y (d) bi-factorial (Leue & Beauducel, 2011), todos en sus variantes oblicua y ortogonal. Varios modelos presentaron un ajuste aceptable, pero solo después de permitir correlacionar los errores y excluir los ítems alerta y excitado. Mientras que las soluciones ortogonales de los tres modelos mostraron un mejor ajuste en los Estudios 2, 3 y 4, las soluciones oblicuas presentaron un mejor ajuste en el Estudio 1. El alfa de Cronbach, la confiabilidad compuesta y el índice omega oscilaron entre .55 y .89. Considerando el modelo teórico original y la utilidad práctica del PANAS, nos inclinamos hacia el modelo de dos factores ortogonales, excluyendo los ítems antes mencionados.

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Some studies have demonstrated a beneficial role of Positive Affect on working memory (WM) by either applying protocols of mood induction or assessing naturally occurring state Positive Affect. However, there are no studies directly linking Positive Affect as a stable personality-like trait with WM. We aimed to address this potential relationship using the Positive and Negative Affect Schedule scale and contra-lateral delay activity (CDA) as measures of trait Positive Affect and WM Capacity, respectively. We also sought to investigate the impact of a neutral or unpleasant emotional state on this relationship. Participants performed a change detection task, while a neutral or an unpleasant emotional state was induced. Our results showed a positive robust correlation between trait Positive Affect and WM Capacity for both neutral and unpleasant emotional states, as revealed by the neuroelectrophysiological gold-standard measure of WM, namely, CDA. These data suggest a tangible role of trait Positive Affect in the cognitive ability of maintaining goal-relevant information in WM, such that even a highly disruptive state is not sufficient to corrupt this relationship.

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Dentro de las mediciones mediante autorreporte, una de las escalas más mencionadas en la literatura científica sobre las emociones es la Escala de Afecto Positivo y Negativo (PANAS). Teniendo en cuenta las investigaciones precedentes, el presente trabajo tiene un objetivo principal, el de replicar en una muestra de estudiantes universitarios argentinos los hallazgos previos encontrados en otros países acerca de la dimensión factorial del PANAS. Para esto se utilizó el Análisis Factorial Confirmatorio. Si bien en general los resultados permiten dar cuenta de las propiedades convergente, discriminante y jerárquica del Afecto propuestas por Watson (2000), no se logran corroborar del todo estos postulados. Así, se evidencia que las variables observables Alerta y Excitado presentan una ponderación cruzada, afectando el ajuste global de los modelos. Finalmente, el modelo trifactorial del Afecto es el que presenta mejores índices de ajustes, tanto para el caso oblicuo como ortogonal.

Within self-report measures, one of the most mentioned scales in the scientific literature on emotions is the Positive and Negative Affect Schedule (PANAS). Taking into account previous research, the present work has a main objective, to replicate in a sample of Argentine university students the previous findings found in other countries about the factorial dimension of PANAS. For this, it was used the Confirmatory Factor Analysis. Although in general the results showed that the hierarchical, discriminant and convergent affection properties proposed by Watson (2000) cannot be fully corroborated. Thus, it is evident that the observable variables Alert and Excited have a cross weighting, affecting the overall adjustment of the models. Finally, the trifactorial model of the Affect is the one that presents better indices of adjustments, both for the oblique and orthogonal cases

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Indoor tanning (IT) has been linked with psychiatric and addictive symptoms, and frequent tanning may indicate tanning dependence (addiction). The current study evaluated the effects of an IT episode on mood states and the association of these effects with psychiatric and addictive symptoms among young adult female indoor tanners. One-hundred thirty-nine female university students aged 18-25 years who had indoor tanned completed an online survey including the Positive and Negative Affects Scales and a standardized psychiatric interview (the MINI International Neuropsychiatric Interview) via telephone. Psychiatric and addictive symptoms were relatively common among these young adult female indoor tanners. Overall, participants reported significant decreases in both negative (upset, scared, irritable, nervous, jittery, afraid) and positive (feeling interested) mood states after their most recent tanning episode. Multivariable linear regression analyses showed that more frequent indoor tanning in the past month and symptoms of illicit drug use disorders were associated with decreases in negative mood, and symptoms of generalized anxiety disorder were associated with a decrease in feeling interested. In summary, indoor tanners report relatively high rates of psychiatric and substance use symptoms, including symptoms of tanning dependence, and indoor tanning appears to alter mood. Women with certain substance use and psychiatric characteristics may be more vulnerable to such mood changes after tanning indoors. Further research is needed to clarify the relationships among these variables.

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El Modelo Bifactorial de Afectividad de Watson y Tellengen se ha postulado para la diferenciación de la ansiedad y la depresión en Europa y Norteamérica, pero no se han reportado estudios en población cubana de edad media. El objetivo de esta investigación fue investigar la Afectividad Positiva (AP) y la Afectividad Negativa (AN) en personas sin psicopatología, con sintomatología predominantemente ansiosa, depresiva o mixta. La muestra fue de 219 personas; 19,2% con sintomatología ansiosa, 17,8% depresiva, 23,7% mixta y el resto sin síntomas. Se utilizó el Inventario de Afecto Positivo y Negativo (PANAS) para estudiar la afectividad y la Escala de Ansiedad y Depresión de Goldberg (EADG) para diferenciar los subgrupos diagnósticos. Se utilizó el ANOVA de un factor con el Método de la Diferencia Significativa Honesta de Tukey para establecer las diferencias. Se encontró que la AP era menor en los depresivos tal y como predice el Modelo, pero no se cumplió la predicción de que la AP diferenciaría a los ansiosos de las personas sin síntomas, y se encontró que en el grupo con sintomatología mixta había mayor AN y menor AP que en los otros subgrupos patológicos, lo cual alerta sobre la necesidad de evaluar los modelos desarrollados en otras culturas.

Two-Factor Model of Emotion of Watson and Tellengen has been investigated for the differentiation of anxiety and depression in Europe and North America, but no studies have been reported on middle-aged Cuban population. The objective of this research was to investigate the negative (NA) and positive affectivity (PA) in individuals without psychopathology, predominantly anxious, depressive or mixed symptoms. The sample was 219 subjects; 19.2% with symptoms of anxiety, 17.8% has depression, 23.7% mixed anxiety and depression symptoms, and the rest without symptoms. Positive and negative affect schedule (PANAS) was used to study emotion; and Anxiety and Depression Scale Goldberg (GADS) to differentiate diagnostic subgroups. The one-way ANOVA was used with the method of Tukey Honest Significant Difference. We found that AP was lower in depressive as predicted by the model, but the prediction that the AP would differentiate anxious people without symptoms was fulfilled, which highlights the need to evaluate the models developed in other cultures.

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The role of attention in emotional processing is still the subject of debate. Recent studies have found that high positive affect in approach motivation narrows attention. Furthermore, the positive affect trait has been suggested as an important component for determining human variability in threat reactivity. We employed functional magnetic resonance imaging to investigate whether different states of attention control would modulate amygdala responses to highly unpleasant pictures relative to neutral and whether this modulation would be influenced by the positive affect trait. Participants (n = 22, 12 male) were scanned while viewing neutral (people) or unpleasant pictures (mutilated bodies) flanked by two peripheral bars. They were instructed to (a) judge the picture content as unpleasant or neutral or (b) to judge the difference in orientation between the bars in an easy condition (0 or 90(∘) orientation difference) or (c) in a hard condition (0 or 6(∘) orientation difference). Whole brain analysis revealed a task main effect of brain areas related to the experimental manipulation of attentional control, including the amygdala, dorsolateral prefrontal cortex, and posterior parietal cortex. Region of interest analysis showed an inverse correlation (r = -0.51, p < 0.01) between left amygdala activation and positive affect level when participants viewed unpleasant stimuli and judged bar orientation in the easy condition. This result suggests that subjects with high positive affect exhibit lower amygdala reactivity to distracting unpleasant pictures. In conclusion, the current study suggests that positive affect modulates attention effect on unpleasant pictures, therefore attenuating emotional responses.

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O presente estudo teve por objetivo contemplar o critério de justiça dos itens da Escala de Afeto Positivo e Afeto Negativo (PANAS), considerando contribuições das últimas décadas sobre a evidência de diferenças de gênero na manifestação dos traços em questão. Com esse objetivo, a PANAS foi aplicada em 354 participantes, de ambos os sexos. Os dados foram avaliados sob o paradigma da TRI, segundo o modelo para itens politômicos sugerido por Andrich (1988), e o critério de justiça de acordo com o Funcionamento Diferencial de Itens, conforme os parâmetros sugeridos por Linacre (2011), comparando amostras com sujeitos do sexo feminino e masculino. As evidências do presente estudo apontam para itens que favorecem determinadas características dos grupos em questão.

This article is an investigation into the justice criterion for the items of the Positive Affect and Negative Affect Schedule (PANAS) considering contributions from the last decades on gender differences as to emotion and affect experience. For this purpose, the PANAS was administered to 354 participants of both genders. Data was evaluated under the paradigm of IRT, according to the model of polytomous responses suggested by Andrich (1988), and the criterion of justice in accordance with the Differential Item Functioning on the parameters suggested by Linacre (2011) comparing male and female samples. Evidence indicates differential item functioning for specific items, favoring groups according to their characteristics.

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O presente estudo teve por objetivo contemplar o critério de justiça dos itens da Escala de Afeto Positivo e Afeto Negativo (PANAS), considerando contribuições das últimas décadas sobre a evidência de diferenças de gênero na manifestação dos traços em questão. Com esse objetivo, a PANAS foi aplicada em 354 participantes, de ambos os sexos. Os dados foram avaliados sob o paradigma da TRI, segundo o modelo para itens politômicos sugerido por Andrich (1988), e o critério de justiça de acordo com o Funcionamento Diferencial de Itens, conforme os parâmetros sugeridos por Linacre (2011), comparando amostras com sujeitos do sexo feminino e masculino. As evidências do presente estudo apontam para itens que favorecem determinadas características dos grupos em questão(AU)

This article is an investigation into the justice criterion for the items of the Positive Affect and Negative Affect Schedule (PANAS) considering contributions from the last decades on gender differences as to emotion and affect experience. For this purpose, the PANAS was administered to 354 participants of both genders. Data was evaluated under the paradigm of IRT, according to the model of polytomous responses suggested by Andrich (1988), and the criterion of justice in accordance with the Differential Item Functioning on the parameters suggested by Linacre (2011) comparing male and female samples. Evidence indicates differential item functioning for specific items, favoring groups according to their characteristics(AU)

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This paper analyzes the structure and the temporal invariance of the Portuguese version of the Positive and Negative Affect Schedule. Previous studies are not consensual whether PANAS measures two or three affect factors and whether such factors are independent or correlated. In order to fill in this gap, we compared the original PANAS, as an independent bi-dimensional structure, with several other alternative structures. Two hundred forty five university students and professional trainees answered the questionnaire in two distinct moments with a two month interval. The model of PANAS with a structure of two independent factors, Positive Affect (PA) and Negative Affect (NA), as proposed by the authors of the scale, was tested. However, the best model consisted of two independent factors, PA and NA, with the cross-loading of the item "excited" between PA and NA, and specified error correlations between the same categories of emotions. Another gap in the literature is the temporal invariance analysis of the PANAS. This paper assesses the temporal invariance of the scale, using the structural equation modeling analysis. Although it was used in its state form version, the PANAS scale showed temporal stability in a two month interval...

O artigo analisa a estrutura e a invariância temporal da versão portuguesa da Positive and Negative Affect Schedule. A investigação científica anterior não é consensual acerca da estrutura da PANAS, se é constituída por dois ou três fatores e se esses fatores são independentes ou correlacionados. De forma a colmatar esta lacuna, procedemos à comparação da estrutura da PANAS como tendo duas dimensões independentes com várias outras estruturas alternativas. Duzentos e quarenta e cinco estudantes universitários e de cursos de formação profissional responderam ao questionário em dois momentos, com dois meses de intervalo. Foi testado o modelo da PANAS que representa uma estrutura de dois fatores independentes, Afeto Positivo (AP) e Afeto Negativo (AN), tal como definida pelos autores da escala. Contudo, o melhor modelo foi o que representa uma estrutura de dois fatores independentes, com a ponderação dupla do item "excitado" entre o AP e o AN e especificando correlações entre os erros dos itens que pertencem às mesmas categorias de emoções. Outra lacuna na investigação é a análise da invariância temporal da PANAS. Este artigo analisa a invariância temporal da escala, utilizando a análise de modelos de equações estruturais. Embora a escala tenha sido aplicada na sua versão afeto estado, a PANAS revelou invariância temporal num intervalo de dois meses...

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This paper analyzes the structure and the temporal invariance of the Portuguese version of the Positive and Negative Affect Schedule. Previous studies are not consensual whether PANAS measures two or three affect factors and whether such factors are independent or correlated. In order to fill in this gap, we compared the original PANAS, as an independent bi-dimensional structure, with several other alternative structures. Two hundred forty five university students and professional trainees answered the questionnaire in two distinct moments with a two month interval. The model of PANAS with a structure of two independent factors, Positive Affect (PA) and Negative Affect (NA), as proposed by the authors of the scale, was tested. However, the best model consisted of two independent factors, PA and NA, with the cross-loading of the item "excited" between PA and NA, and specified error correlations between the same categories of emotions. Another gap in the literature is the temporal invariance analysis of the PANAS. This paper assesses the temporal invariance of the scale, using the structural equation modeling analysis. Although it was used in its state form version, the PANAS scale showed temporal stability in a two month interval.(AU)

O artigo analisa a estrutura e a invariância temporal da versão portuguesa da Positive and Negative Affect Schedule. A investigação científica anterior não é consensual acerca da estrutura da PANAS, se é constituída por dois ou três fatores e se esses fatores são independentes ou correlacionados. De forma a colmatar esta lacuna, procedemos à comparação da estrutura da PANAS como tendo duas dimensões independentes com várias outras estruturas alternativas. Duzentos e quarenta e cinco estudantes universitários e de cursos de formação profissional responderam ao questionário em dois momentos, com dois meses de intervalo. Foi testado o modelo da PANAS que representa uma estrutura de dois fatores independentes, Afeto Positivo (AP) e Afeto Negativo (AN), tal como definida pelos autores da escala. Contudo, o melhor modelo foi o que representa uma estrutura de dois fatores independentes, com a ponderação dupla do item "excitado" entre o AP e o AN e especificando correlações entre os erros dos itens que pertencem às mesmas categorias de emoções. Outra lacuna na investigação é a análise da invariância temporal da PANAS. Este artigo analisa a invariância temporal da escala, utilizando a análise de modelos de equações estruturais. Embora a escala tenha sido aplicada na sua versão afeto estado, a PANAS revelou invariância temporal num intervalo de dois meses.(AU)

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El afecto o emoción como tema de investigación científica ha despertado un gran interés en los últimos años, sin embargo, en nuestro medio no se cuenta con instrumentos psicométricos que permitan una medición válida y confiable. El presente trabajo tuvo por objetivo realizar una adaptación psicométrica de la Escala de Afectividad Positiva y Negativa ([PANAS], Watson, Clark & Tellegen, 1988) a la población de adultos de la ciudad de Córdoba, Argentina. Los estudios de estructura interna sugieren la existencia de dos dimensiones subyacentes homogéneas (α= 0.73; α= 0.82) que explican un 39 % de la variabilidad de la prueba. Asimismo, los estudios de correlación ítem-total, de discriminación de ítem y de contrastación de grupos resultaron semejantes a los reportados por trabajos antecedentes. En conjunto, los resultados obtenidos son promisorios y avalan el uso del PANAS en el contexto cordobés.

The affect or emotion as a topic of scientific investigation has been of great interest in recent years, however in our environment there are no psychometric instruments which allow a valid and reliable measurement. The object of this work was to create a psychometric adaptation of the Positive and Negative Affectivity Scale ([PANAS], Watson, Clark & Tellegen, 1988) for the adult population of the city of Cordoba, Argentina. The internal structure studies suggest the existence of two subjacent homogenous dimensions (α= 0.73; α= 0.82) which explain 39% of the variability of the test. Studies of the correlation item total, of item discrimination and contrasted groups resulted similar to those reported in previous works. Altogether, the results obtained are promising and support the use of PANAS in Cordoba.