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1
artículo
Publicado 2017
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Many instruments are created with the primary purpose of scaling individuals on a single trait. However psychological traits are often complex and contain domain specific manifestations. As such, many instruments produce data that are consistent with both unidimensional and multidimensional structures. Unfortunately, oftentimes, applied researchers make determinations about the final structure based solely on fit indices obtained from structural equation models. Given that fit indices generally favor the bifactor model over competing measurement models it is imperative that researchers make use of the available information the bifactor has to offer in order to compute informative indices including omega reliability coefficients, construct reliability, explained common variance, and percentage of uncontaminated correlations. Said indices provide unique information about the strength of bo...
2
artículo
The objectives of the study were to determine the psychometric properties of the Scale of Attitudes towards Statistics in Mexico. In this instrumental study, a non-probabilistic sample of 383 Mexican psychology students who responded to two attitude scales was analyzed. The bifactor model with three specific factors (safety, pleasure-usefulness, and motivation) showed the best properties of fit and convergent validity. The average attitude was neutral and more positive in men than in women. The general factor had a high correlation with attitude towards research. It is concluded that the three-factor bifactor model represents the relationship between the items better than the original five-factor model.
3
artículo
Publicado 2019
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The overlap between depression and anxiety is a widely-replicated finding in mental health research. The Depression, Anxiety, Stress Scales (DASS-21) were developed to maximize the discrimination between these constructs. However, research suggests that DASS-21 predominantly measure an overall factor of emotional distress. In this study, DASS-21 were translated and applied to 353 university students (Mage = 20.42; 61% women) from Lima, Peru. The confirmatory factorial analysis supported a bifactor model, but additional analyses revealed that the data were essentially one-dimensional. Moreover, when the items were subjected to a bifactor exploratory analysis, some did not load into their original specific factors. The conclusion was that DASS-21 must be interpreted as a global dimension of emotional distress.
4
artículo
Publicado 2019
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The overlap between depression and anxiety is a widely-replicated finding in mental health research. The Depression, Anxiety, Stress Scales (DASS-21) were developed to maximize the discrimination between these constructs. However, research suggests that DASS-21 predominantly measure an overall factor of emotional distress. In this study, DASS-21 were translated and applied to 353 university students (Mage = 20.42; 61% women) from Lima, Peru. The confirmatory factorial analysis supported a bifactor model, but additional analyses revealed that the data were essentially one-dimensional. Moreover, when the items were subjected to a bifactor exploratory analysis, some did not load into their original specific factors. The conclusion was that DASS-21 must be interpreted as a global dimension of emotional distress.
5
artículo
Los objetivos del estudio fueron determinar las propiedades psicométricas de la Escala de Actitudes hacia la Estadística en México. En este estudio instrumental, se analizó una muestra no probabilística de 383 estudiantes de psicología mexicanos que respondieron a dos escalas actitudinales. El modelo bifactor definido por un factor general y tres factores específicos (seguridad, agrado-utilidad y motivación) mostró las mejores propiedades de ajuste a los datos y de validez convergente en sus modelos de medida. La actitud promedio fue neutra y más positiva en hombres que en mujeres. El factor general de actitud hacia la estadística tuvo correlación alta con actitud hacia la investigación. Se concluye el bifactor de tres factores representa mejor la relación entre los ítems que el modelo original de cinco factores correlacionados.
6
artículo
Publicado 2023
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Introducción: El insomnio es el trastorno de sueño de mayor incidencia a nivel mundial. Se estima que este padecimiento eleva el riesgo de desarrollar problemas psiquiátricos, neurológicos y cardiovasculares. Debido a ello es importante tener instrumentos psicométricos breves, confiables y válidos que permitan al personal de salud su oportuna detección en los centros de salud de primer nivel. Objetivo: Analizar las propiedades psicométricas del Índice de Severidad de Insomnio (ISI) en su versión adaptada al español en una muestra de adultos mexicanos. Método: Participaron 310 adultos, 223 (71.9%) mujeres y 87 (28.1%) hombres. Se realizó la comparación de cuatro modelos de medida del ISI de uno, dos y tres factores y un modelo bifactor, se analizó su consistencia interna, un análisis de invarianza por sexo y análisis de correlación con las e...
7
artículo
Publicado 2023
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Background: The Intolerance of Uncertainty Scale short version (IUS-12) has proven to be a robust self-report measure to assess intolerance of uncertainty. While previous psychometric analyses of the IUS-12 have established a stable two-factor structure corresponding to the prospective and inhibitory factors of intolerance of uncertainty, recent studies suggest that the bifactor model may better explain its factor structure. Objective: The current study aimed to adapt and validate the IUS-12 in a Mexican population culturally. Method: The study consisted of a convenience non-probabilistic community sample of 405 adults between 18 and 70 years. Results: Confirmatory factor analyses supported a bifactor model and good internal consistency. Invariance testing indicated partial invariance across women and men. Convergent validity tests showed that the IUS-12 was related to measures of w...
8
artículo
Publicado 2022
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The purpose of this paper is to build and review the psychometric properties of the Brief Work Climate Scale (EBCL), therefore, an instrument comprised of 15 items in its initial version was designed, which had a Likert-type response scale with 5 alternatives, of which only 13 items had content-based validity evidence due to an Aiken’s V greater than .80, with probability of statistical significance (p < .05). The final version was applied to two sample groups (n1 = 121; n2 = 126) of employees at the operational level of two companies related to the grocery sales sector in Metropolitan Lima. In the first sample, the exploratory factorial analysis was reviewed with a Pearson correlation matrix, demonstrating the existence of two well-defined models (two oblique factor model and one-dimensional model), the first factor explained 55.4% of the accumulated variance and the second 4...
9
artículo
Publicado 2022
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The purpose of this paper is to build and review the psychometric properties of the Brief Work Climate Scale (EBCL), therefore, an instrument comprised of 15 items in its initial version was designed, which had a Likert-type response scale with 5 alternatives, of which only 13 items had content-based validity evidence due to an Aiken’s V greater than .80, with probability of statistical significance (p < .05). The final version was applied to two sample groups (n1 = 121; n2 = 126) of employees at the operational level of two companies related to the grocery sales sector in Metropolitan Lima. In the first sample, the exploratory factorial analysis was reviewed with a Pearson correlation matrix, demonstrating the existence of two well-defined models (two oblique factor model and one-dimensional model), the first factor explained 55.4% of the accumulated variance and the second 4...
10
artículo
Publicado 2025
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This study analyzed the psychometric properties of the Prosocial Behavior Scale (PB). A total of 448 Peruvian adults participated, 323 (72.1%) women and 125 (27.9%) men, aged between 18 and 65 years (M = 25.13, SD = 7.03). The metric quality of the 16 items was examined. Using confirmatory factor analysis, 10 models were compared, with the best fit found for the bifactor model, consisting of two specific factors and one general factor: χ²/df = 3.155, CFI = .973, TLI = .963, RMSEA [90% CI] = .069 [.060; .079], SRMR = .039, and WRMR = 0.917, with specific indices ωH > .80, ECV < .60, and PUC < .80. Internal consistency reliability was confirmed (ꞷ = .945). Measurement invariance was evaluated through multigroup confirmatory factor analysis, showing that the scale is invariant across gender and age groups: ΔCFI ≤ .010, ΔRMSEA ≤ .015, and ΔSRMR ≤ .030.In conclusion, th...
11
artículo
Publicado 2021
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Introduction: The UWES is one of the most widely used instruments in the world to measure academic engagement. Objective: The objective of this study was to describe and compare the psychometric properties of the UWES 17S and the UWES 9S in Chilean university students. Method: 541 students from a Chilean university participated, who voluntarily entered the indicated instruments. 61.6% of them were in the first year and 38.4% were at higher levels. Results: When comparing seven structural models, the best fit indicators were found in the UWES 9S according to a three-factor model and a bifactor model (X2/df=2.316; CFI=.977; TLI=.952; RMSEA=.071). The UWES 9S showed McDonald’s ω reliability indicators between .67 and .83 in its three factors, also demonstrating the invariance of its three-factor structure according to sex and at different levels of study. Discussion: It is concluded that...
12
artículo
Publicado 2021
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Introduction: The UWES is one of the most widely used instruments in the world to measure academic engagement. Objective: The objective of this study was to describe and compare the psychometric properties of the UWES 17S and the UWES 9S in Chilean university students. Method: 541 students from a Chilean university participated, who voluntarily entered the indicated instruments. 61.6% of them were in the first year and 38.4% were at higher levels. Results: When comparing seven structural models, the best fit indicators were found in the UWES 9S according to a three-factor model and a bifactor model (X2/df=2.316; CFI=.977; TLI=.952; RMSEA=.071). The UWES 9S showed McDonald’s ω reliability indicators between .67 and .83 in its three factors, also demonstrating the invariance of its three-factor structure according to sex and at different levels of study. Discussion: It is concluded that...
13
artículo
Publicado 2023
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In this study, we aimed to analyze the psychometric properties of the WLEIS-S Scale and generate normative data for measuring emotional intelligence in the Peruvian context. A total 782 people participated, 175 men (22.4 %) and 607 women (77.6 %), between 18 and 59 years old (M=29.39, DE=9.67), selected through a non-probabilistic convenience sampling. First, the metric quality of its 16 items was verified. Then, its internal structure was analyzed through confirmatory factor analysis, finding adequate fit indices for the bifactor model: χ2=305.795, CFI=.969, TLI=.958, RMSEA=.056 y SRMR=.029, in addition to evidence in favor of its unidimensionality: PUC, ωh and H coefficient >.80, ECV >.60 and explained variance of 71.97%. Likewise, evidence of its discriminant validity was found in relation to the scores of psychological discomfort measured with the K10 Scale (r=-.37, r2=.13). ...
14
artículo
Publicado 2021
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Objective. To analyze the psychometric properties of the Zung depression scale in people with HIV in the department of San Martín. Methods. It was a basic and psychometric study, of non-experimental, cross-sectional, and instrumental design; the participants were 203 patients with HIV, of these (24.6% women, 35.5% men; 39.9% LGTBI) of these 56.7% do not know their viral load, and 50.7% do not follow treatment, the instrument applied was the Zung Depression Scale. Results. The items measure the depression variable together, through the CVC congruence of constructs was demonstrated obtaining a coefficient of .98, a bifactor model with adequate adjustment indices was proposed (X2= 273.2; df= 169; CFI= ,917; TLI= ,907; RMSEA=.055 and RMR=.056), similarly the reliability was high (a=.855; b=.869), in terms of normative data through the use of percentiles, measurement values of the scale were...
15
artículo
Publicado 2025
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Sexual satisfaction is an essential component of general well-being, and its accurate assessment is essential in clinical and research contexts. This study aimed to analyze the psychometric properties of the New Sexual Satisfaction Scale (NSSS) in a sample of Ecuadorian university students. An instrumental approach was used with two independent samples: one of 310 participants for the exploratory factor analysis (EFA) and another of 230 for the confirmatory factor analysis (CFA). The AFE revealed a bifactor structure composed of Intrapersonal Sexual Satisfaction and Interpersonal Sexual Satisfaction, which explained 52.4 % of the total variance. Cross-loaded items were removed to improve the internal validity and structural clarity of the model. The AFC showed acceptable fit indices (CFI= 0.930, TLI= 0.918, RMSEA= 0.0811, SRMR= 0.0442), confirming the validity of the proposed model. The ...
16
artículo
Publicado 2023
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Introduction: The Dissociative Experiences Scale (DES-II) is a widely used psychometric tool to assess dissociative symptoms. Over the years, it has been the subject of numerous studies and research in various fields of psychology and psychiatry. Numerous studies have supported the validity and reliability of the DES-II as a reliable measure of dissociative experiences. The most problematic aspect of the DES-II is the inconsistency in its factor structure. Objective: This research aimed to examine the psychometric properties of the DES-II in a clinical and non-clinical sample from Puerto Rico. Method: This research had an instrumental design. An availability sampling of 341 adult participants was used. Several competing models of the DES-II were analyzed, including a bifactor model. Result: Psychometric analyses concluded that the scale has a unidimensi...
17
artículo
Publicado 2023
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The purpose of this instrumental design study was to analyze the psychometric evidence of the Multidimensional Scale of Perceived Social Support (MSPSS) for its application in university students in Metropolitan Lima. A total of 520 students participated, 292 women (56%) and 228 men (44%), between 18 and 61 years of age (M = 24.89, SD = 5.17). The confirmatory factor analysis showed acceptable values for the bifactor model: χ2/gl = 4.645, CFI = .99, TLI = .98, SRMR = .027, RMSEA = .084 (90% C.I., .072, .096) and WRMR = .99. Additionally, a value of H = .945, PUC = .727, ECV = .695 and the ωH = .85 were obtained for the general factor. Convergent validity was examined with the General Self-Efficacy Scale (GSES) (r = .50; r2 = .25) and divergent validity with the Test Anxiety Inventory-State (TAI-State) (r = -.32; r2 = .10). In addition, reliability was determined through the ordinal ome...
18
artículo
Publicado 2022
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Currently, there is evidence of an increase in displacement caused by conflicts, persecution, lack of opportunities, security, among other reasons, increasing the migrant population in Latin American countries. The displaced Venezuelans stand out, with Peru being the second country in Latin America with more than this population of migrants. Studies have warned about the devaluation of migrants and especially those who live with infectious diseases such as HIV. The autochthonous citizens of the receiving country perceive the presence of the outgroup as threats to their social rights, related to negative attitudes, which has been promoted by the media. Therefore, it is important to carry out studies that estimate the discernment of out-group threats closely towards migrants. The objective is to evaluate the psychometric evidence of the EPAE measurement instrument in a sample of Peruvian a...
19
artículo
Publicado 2023
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The objective of the study was to develop a short version of the Positive Affect and Negative Affect Scale (PANAS), from the original version of 20 items, proposed by Watson et al. (1988a). The sample consisted of 3960 students from a public university in Lima. The results indicate that the validity of the internal structure, through exploratory and confirmatory factor analysis, was defined by 10 items and two dimensions. Positive affects are organized into five items: determined, optimistic, inspired, active, and attentive; while negative affects are in five items: irritable, hostile, angry, guilty, and ashamed. Likewise, it was found for the final short version, standardized coefficients with factorial loads between .48 and .85, as well as the fit indices of the model were in accordance with what was expected. Internal consistency reliability indicates Alpha and Omega coefficients grea...
20
tesis de grado
Publicado 2025
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El presente estudio es una investigación de tipo instrumental, cuyo objetivo general fue determinar las evidencias psicométricas de la escala de comportamientos de sexting en adolescentes de una institución educativa estatal de Trujillo, en su versión de 9 ítems, para ello, se trabajó con una muestra conformada por 300 alumnos de 5to de secundaria. En los resultados, el análisis de ítems mediante la correlación ítem test corregido, reveló que todos los ítems presentaron valores entre .750 y .862, asimismo, la validez de constructo por análisis factorial confirmatorio reveló índices de ajuste satisfactorios para el modelo bifactorial (CFI= .945; TLI= .913; RMR= .058) además, se estimó la confiabilidad por consistencia interna a través del coeficiente alfa y del coeficiente omega, ambos identificaron valores superiores a .90 tanto para la escala total como para las dimens...
