, 1983), for its use in Mexican samples. Using a random sample of students, internal consistency was analyzed and the factor structure of the Spanish version of the PSS was compared with the factor structure found in the English version. Internal consistency was adequate (α = .83) and confirmatory factor analysis corroborated the factor structure. Factor 1 explained 42.8% of the variance and Factor 2 accounted for 53.2%. The goodness-of-fit measures also revealed an adequate fit. The cultural adaptation of the PSS was also evaluated with satisfactory results. Keywords: PSS, psychometric properties, Spanish, Mexico, perceived stressEl estudio tiene como propósito valorar la adaptación cultural realizada a la versión española de la Escala de Estrés Percibido (Cohen, Kamarak y Mermelstein, 1983), para ser utilizada en muestras de México. Se analizó la consistencia interna y la estructura factorial de la versión en español del PSS y se comparó con la estructura factorial encontrada para la versión en inglés, utilizando una muestra aleatoria de estudiantes. Los resultados indican una adecuada consistencia interna (α = .83) y se confirma la estructura factorial al utilizarse análisis factorial confirmatorio; con el Factor 1 explicando un 42.8% de la varianza y el Factor 2, un 53.2%, así como estadísticos de ajuste aceptables en el AFC. Asimismo, se evaluó, con resultados satisfactorios, la adaptación cultural realizada para el PSS.

One of the most widely used scales for the evaluation of stress is the Perceived Stress Scale (PSS), and it has been adapted into different languages. However, few studies have presented normative data from large samples, and there do not appear to be any studies of the PSS that provide normative data based on large samples for Mexico. Thus, the goal of this study was to provide normative data regarding gender and different age groups for a sample of 1990 Mexican subjects to validate the factor structure of the construct for this sample. The analysis of the 10- and 14-item versions of the PSS revealed that the scale had adequate reliability and that the factor structure was consistent with previous studies. With respect to the normative data, the means of the different groups ranged from 20.93 to 25.63 for the PSS14 and from 14.52 to 17.73 for the PSS10. We propose that scores within one standard deviation of these means be used as reference values for each group.

El propósito del presente es analizar las propiedades psicométricas del cuestionario Brief COPE en población española, analizando la estructura y dimensiones básicas del cuestionario, llamando COPE-28 a la versión española del mismo. La muestra fue de 260 adultos. Para analizar la estructura factorial, se realizó un análisis factorial exploratorio con el método de componentes principales y rotación varimax. Posteriormente se realizó un análisis factorial de segundo orden con las subescales que forman el COPE-28. El resultado de la prueba KMO pone en duda la factibilidad de realizar un análisis factorial; el análisis no confirma la estructura factorial original del instrumento. Con base en los resultados obtenidos se afirma que la validez del COPE-28 no es concluyente.

The study of human–animal interactions has increased, focusing on the dog–owner relationship, leaving a lag in research on the cat–owner relationship and practically a total absence of studies that compare the dog–owner relationship with the cat-owner relationship. Therefore, the objective of the present study was to make this comparison based on the perception of people living with both dogs and cats, considering interaction, emotional closeness, and perceived cost of the relationship. A total of 132 residents in Mexico participated. To evaluate the pet–human relationship, the dog and cat versions of the Monash dog owner relationship scale were used, thus obtaining comparable scores for the relationship with dogs and cats. Based on what the owners reported, significant differences were found. Relationships with cats were better than relationships with dogs, a finding that was confirmed when comparing male dogs and cats and when comparing female dogs and cats. It was concluded that relationships with cats are better because the perceived cost of such a relationship is lower. However, emotional closeness is greater with dogs than with cats.

This study was conducted in order to determine factor structure and reliability of STAXI-2-AX/EX (Spielberger, 1999) and to calculate the correlation between STAXI-2-AX/EX and the Housewives Burnout Questionnaire (CUBAC). The study sample included 226 housewives. Dimensional structure was estimated using exploratory and confirmatory factor analysis. Factor analysis results of STAXI-2-AX/EX showed that a four related factors model had an adequate goodness of fit, eliminating three items. Regarding the CUBAC, a two related factors structure presented the best goodness of fit, which improve if five items were eliminated. Finally, as we expected, the correlation between the two scales was positive (r= .38. We suggest that this study should be replicated in other countries.