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1
tesis de grado
Publicado 2022
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Julcani es una de las principales minas de Huancavelica - Perú, fue trabajada desde el tiempo de la colonia, habiendo sido abandonada varias veces por distintas empresas. En 1953 se funda la Compañía de Minas Buenaventura SAA con la adquisición de mina Julcani, la misma que viene operando actualmente. La mineralización de Julcani está emplazada en rocas volcánicas a manera de vetas angostas entre 5cm a 2m, y actualmente se explotan vetas con achos entre 5cm y 50cm. Este yacimiento es un ejemplo típico de un depósito con mineralización íntimamente relacionada a la actividad volcánica y es explotado de manera convencional por el método de corte y relleno ascendente. El zoneamiento de la mineralización se ubica en una franja metalogenética de plata-plomo, los fluidos mineralizantes fueron posiblemente alimentados por el domo de Acchilla, hacia su extremo Norte y en profundida...
2
artículo
Publicado 2017
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The aim of this study was to examine the preliminary evidence of validity of the Research Self-Efficacy Scale (RSE) through the analysis of item contents. A sample of ten research psychologists (70% male; Mage = 47.2 years old), and 34 Peruvian college students (> 70% female), both undergraduate (n = 19) and graduate (n = 15) was assessed. The researchers evaluated the relevance and clarity of the items, and the students, the clarity of the RSE statements. The answers given by the judges were systematized through Aiken’s V with confidence intervals, obtaining favorable results. In conclusion, the RSE exhibits favorable evidence regarding the representativity of the items. The practical implications of the findings are discussed here.
3
artículo
Publicado 2017
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The aim of this study was to examine the preliminary evidence of validity of the Research Self-Efficacy Scale (RSE) through the analysis of item contents. A sample of ten research psychologists (70% male; Mage = 47.2 years old), and 34 Peruvian college students (> 70% female), both undergraduate (n = 19) and graduate (n = 15) was assessed. The researchers evaluated the relevance and clarity of the items, and the students, the clarity of the RSE statements. The answers given by the judges were systematized through Aiken’s V with confidence intervals, obtaining favorable results. In conclusion, the RSE exhibits favorable evidence regarding the representativity of the items. The practical implications of the findings are discussed here.
4
artículo
Publicado 2017
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The aim of this study was to examine the preliminary evidence of validity of the Research Self-Efficacy Scale (RSE) through the analysis of item contents. A sample of ten research psychologists (70% male; Mage = 47.2 years old), and 34 Peruvian college students (> 70% female), both undergraduate (n = 19) and graduate (n = 15) was assessed. The researchers evaluated the relevance and clarity of the items, and the students, the clarity of the RSE statements. The answers given by the judges were systematized through Aiken’s V with confidence intervals, obtaining favorable results. In conclusion, the RSE exhibits favorable evidence regarding the representativity of the items. The practical implications of the findings are discussed here.
5
tesis de maestría
Publicado 2023
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La presente investigación tiene como objetivo, determinar la relación entre la calidad de servicio de diálisis y la calidad de vida de los pacientes del hospital de EsSalud, 2022, donde el tipo de investigación fue aplicada, de enfoque cuantitativo, diseño no experimental, de nivel descriptivo correlacional y de corte transversal donde la población de estudio estuvo conformada por 172 pacientes del servicio de diálisis, se realizó el analizar los resultados descriptivos donde la calidad de servicio fue calificada con porcentajes de 62.8% como eficiente mientras que el 52.9% calificaron la calidad de vida como regular. Por otro parte según los resultados inferenciales, se realizó la prueba de normalidad y se estableció que los datos siguen una distribución no normal correspondiendo la utilización de estadística no paramétrica Rho de Spearman para las pruebas de hipótesis, ...
6
artículo
Publicado 2016
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El objetivo del estudio fue obtener evidencias de validez de la estructura interna del Cuestionario de Autorregulación del Aprendizaje (Learning Self Regulation Questionnaire; LSRQ) y verificar la invarianza métrica comparada con un estudio previo. Los participantes fueron 237 estudiantes universitarios de los tres primeros ciclos académicos de una universidad privada, procedentes de tres ciudades del Perú (dos del norte y una de Lima). El análisis se realizó mediante un análisis factorial semiconfirmatorio, especificando como matriz de comparación (a) la configuración derivada de un estudio previo, y (b) la estimación libre de las cargas factoriales. Los resultados indican que dos dimensiones representan satisfactoriamente la estructura del instrumento; pero la invarianza métrica respecto a un estudio previo no fue satisfactoria. La reespecificación del modelo, medi...
7
artículo
Family resilience assessment scale (FRAS): assessing its internal structure in the Brazilian context
Publicado 2025
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It aimed to gather evidence psychometrics of the Family Resiliency Assessment Scale (FRAS). Two studies were carried out with participants from different states in Brazil. In the first (n = 314), the majority female (56.4%), with an exploratory factor analysis being performed, which suggested a three-factorial structure, with adequate precision. The study 2 (n = 336), the majority female, who undergoing hemodialysis (46.4%). Confirmatory factor analysis corroborated the structure tetra-factorial (family communication and problem solving, maintaining a positive outlook, using social resources and economics, and family spirituality). Therefore, the results showed that the reduced version of FRAS can be an alternative to assess family resilience and its correlates.
8
artículo
Publicado 2023
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The Generalized Problematic Internet Use Scale 2 was adapted for the adult population of Buenos Aires. Participants were 225 subjects (68.4% female; 30.7% male, 0.9% non-binary). Instruments administered were: survey of sociodemographic data and characteristics of use of social networks; Generalized Problematic Internet Use Scale 2; Mental Health Continuum Short Form and; Symptom Check List-27. Confirmatory factor analysis was carried out; It was found an adequate fit of the structure proposed by the original author. Cronbach’s and ordinals alphas ranged from .77 to .87. Significant positive correlations were found between the generalized problematic use of the Internet, the psychopathological symptoms and the time of use of social media. Associations were negative with psychological well-being.
9
artículo
Publicado 2020
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Design of a measurement instrument is a multidisciplinary task. To measure some trait without major implications - depending on the application you are given- it will be needed specialists in construct, statistical analysts, test designers, and language specialists. In fact, specialized knowledge is required for the design or adaptation of instruments that have broad repercussions, such as, validating a medical diagnostic instrument. Metric characteristics of an instrument are its validity and reliability. Validity refers to the accuracy of physical instruments and the reliability of measurement precision. In addition, validities that are representative of this characteristic are content, construct and criterion validity, while reliability of the instrument increases when errors are identified and these can be controlled.
10
artículo
Como parte de un estudio de “conciencia ambiental y expresión artística en estudiantes de una universidad pública de Lima Metropolitana”, se planteó el objetivo de diseñar y determinar la validez de los ítems y la confiabilidad de una escala para evaluar la conciencia ambiental. Participaron en la muestra 216 estudiantes voluntarios, 63 hombres y 153 mujeres, con edades entre 17 a 30 años, seleccionados a partir del muestreo no probabilístico intencional. En este apartado, el diseño corresponde a un estudio instrumental. Los evaluados respondieron virtualmente la Escala de Conciencia Ambiental: se empleó el Análisis Factorial Exploratorio, mediante el método Factorización de Ejes Principales, con rotación Varimax, permitiendo estimar certezas de validez de los ítems fundadas en la estructura interna. Por otro lado, el Análisis Factorial Confirmatorio llevó a identifi...
11
artículo
Publicado 2024
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Objective: To evaluate the Financial Culture Scale as a psychometrically robust tool for measuring the key dimensions of financial culture in university students in Peru. Methods: A quantitative study was conducted, including the analysis of items through polychoric correlations and the examination of the internal structure and reliability of the instrument. Results: The validity (X²/gl = 3.65; CFI = 0.99; TLI = 0.99; SRMR = 0.03; RMSEA = 0.05; PNFI = 0.91) and reliability of the ESCF were demonstrated, with values exceeding 0.70 and an average variance extracted (AVE) greater than 0.50 in all all dimensions. Conclusion: The validity and reliability of the ESCF have been demonstrated, supporting its use as an effective tool in research. The findings indicate that the model fits the data, suggesting that the evaluated dimensions are consistent and relevant. This provides a solid foundati...
12
artículo
Publicado 2024
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Social well-being is the assessment of social functioning, which plays a key role in mental health. In the school context, teachers and school staff can promote students’ well-being, but it is related to their own. To assess their social well-being, the Keyes social well-being scale was adapted to the school context. Psychometric properties were analyzed in 899 teachers and school staff in Valparaíso, Chile. The results suggest that 22 items are suitable for use, showing good fit to the data. Smaller school size and school participation are associated with higher social well-being. The adapted scale can be a useful tool to measure socio-affective variables of adults in the school community.
13
artículo
Publicado 2018
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El objetivo fue presentar evidencias de validez y confiabilidad de la Escala de Comunicación Padres-Adolescente de Barnes y Olson (1982) en universitarios de Lima de 16 a 25 años. Participaron 255 estudiantes (162 mujeres) de dos universidades de Lima. Se realizó un análisis factorial exploratorio con el objetivo de evaluar la viabilidad de las estructuras bifactorial y trifactorial de la escala. El análisis factorial exploratorio apoyó la estructura de los dos factores inicialmente propuestos para esta escala (apertura de comunicación y problemas de comunicación). Tanto en la versión de comunicación con el padre como en la de comunicación con la madre se obtuvieron altos valores de alfa de Cronbach (entre .80 y .90). El modelo estructural construido presentó también adecuados índices de ajuste. Con ello se confirma la confiabilidad y la validez de este instrumento en la mu...
14
artículo
Publicado 2024
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It aimed to gather evidence psychometrics of the Family Resiliency Assessment Scale (FRAS). Two studies were carried out with participants from different states in Brazil. In the first (n = 314), the majority female (56.4%), with an exploratory factor analysis being performed, which suggested a three-factorial structure, with adequate precision. The study 2 (n = 336), the majority female, who undergoing hemodialysis (46.4%). Confirmatory factor analysis corroborated the structure tetra-factorial (family communication and problem solving, maintaining a positive outlook, using social resources and economics, and family spirituality). Therefore, the results showed that the reduced version of FRAS can be an alternative to assess family resilience and its correlates.
15
artículo
Publicado 2018
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There is a current need for psychological tests that can assess cognitive functioning through an integrative perspective. The purpose of this study was to collect validity evidence of the adult version of the Battery of Intelligence and Creativity. The sample was composed of 99 students (51 female), with ages ranging between 15 and 17. The battery is composed of five cognitive tests and one creative test. The following tests were used as external criteria: The Reasoning Tests Battery 5; Divided and Alternating Attention Tests and Torrance Tests. The results indicated significant correlations (p?.05) between the battery subtests with the intelligence criteria tests (.28 to .52) as well as creativity tests (.26 to .54). This battery was found to be a valid measure to evaluate intelligence and creativity.
16
artículo
Publicado 2023
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The Generalized Problematic Internet Use Scale 2 was adapted for the adult population of Buenos Aires. Participants were 225 subjects (68.4% female; 30.7% male, 0.9% non-binary). Instruments administered were: survey of sociodemographic data and characteristics of use of social networks; Generalized Problematic Internet Use Scale 2; Mental Health Continuum Short Form and; Symptom Check List-27. Confirmatory factor analysis was carried out; It was found an adequate fit of the structure proposed by the original author. Cronbach’s and ordinals alphas ranged from .77 to .87. Significant positive correlations were found between the generalized problematic use of the Internet, the psychopathological symptoms and the time of use of social media. Associations were negative with psychological well-being.
17
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...
18
artículo
Publicado 2020
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The purpose of this study is to report evidence of construct validity and reliability of a new self-report instrument that measures mindfulness and equanimity in a Spanish speaking population. An initial pool of 26 items was evaluated by 17 experts from Spain and Latin America and modified on the basis of their comments. The resulting list of 21 items was administered to 746 university students in Mexico and Peru. Their responses were analyzed using Unweighted Least Squares (ULS) with promin rotations. Two factors were identified, mindless and mindful, with factor loadings ranging from .36 to .65. The reliability coefficients for the first and second factors were .78, and .82 respectively. The inter-factors correlation was -.51. The results indicate clear evidence of convergent and discriminative validity.
19
artículo
Two of the main indices used when doing a psychometric analysis of a performance test are the index of difficulty and the index of discrimination. These indices become indicators of the quality of a test as long as they are within acceptable ranges. This has two consequences, first the determination of the formula for the calculation of the indices, and secondly, the interpretation of them according to certain standards. This work shows the way how these indices are determined and related, as well as the way in which the discrimination rule influences the valuation of the test. Recommendations are also proposed for the use of both indices based on the analysis performed.
20
artículo
Two of the main indices used when doing a psychometric analysis of a performance test are the index of difficulty and the index of discrimination. These indices become indicators of the quality of a test as long as they are within acceptable ranges. This has two consequences, first the determination of the formula for the calculation of the indices, and secondly, the interpretation of them according to certain standards. This work shows the way how these indices are determined and related, as well as the way in which the discrimination rule influences the valuation of the test. Recommendations are also proposed for the use of both indices based on the analysis performed.
