Mating Performance and Singlehood Across 14 Nations.

Adult individuals frequently face difficulties in attracting and keeping mates, which is an important driver of singlehood. In the current research, we investigated the mating performance (i.e., how well people do in attracting and retaining intimate partners) and singlehood status in 14 different countries, namely Austria, Brazil, China, Greece, Hungary, Italy, Japan, Peru, Poland, Russia, Spain, Turkey, the UK, and Ukraine (N = 7,181). We found that poor mating performance was in high occurrence, with about one in four participants scoring low in this dimension, and more than 57% facing difficulties in starting and/or keeping a relationship. Men and women did not differ in their mating performance scores, but there was a small yet significant effect of age, with older participants indicating higher mating performance. Moreover, nearly 13% of the participants indicated that they were involuntarily single, which accounted for about one-third of the singles in the sample. In addition, more than 15% of the participants indicated that they were voluntarily single, and 10% were between-relationships single. We also found that poor mating performance was associated with an increased likelihood of voluntary, involuntary, and between-relationships singlehood. All types of singlehood were in higher occurrence in younger participants. Although there was some cross-cultural variation, the results were generally consistent across samples.

The SISCO Inventory of Academic Stress: Examination of its psychometric properties in a Peruvian sample / El Inventario de Estrés Académico SISCO: análisis de sus propiedades psicométricas en una muestra peruana

OBJECTIVE: The aim of this study was to assess the psychometric properties of the SISCO Inventory of Academic Stress in a Peruvian population. METHOD: Information was obtained from 628 college students belonging to private and public universities. The standard three-dimensional model and a five-factor model were tested by means of confirmatory factor analyses. Furthermore, reliability, measurement invariance across gender and validity related to other variables (perceived social support and academic procrastination) was inspected. RESULTS: Models fitted the data adequately and the instrument was invariant across genders. In addition, an adequate reliability index was confirmed and significant associations with related variables were found. CONCLUSIONS: The current findings reveal that the SISCO Inventory of Academic Stress shows evidence of validity and reliability in Peruvian undergraduate students

OBJETIVO: El objetivo de este estudio fue evaluar las propiedades psicométricas del Inventario de Estrés Académico SISCO en una muestra peruana. MÉTODO: Se obtuvo información de 628 estudiantes universitarios pertenecientes a universidades privadas y públicas. Dos modelos fueron evaluados mediante análisis factorial confirmatorio: el modelo tridimensional estándar y un modelo de cinco factores. Además, se analizó la confiabilidad, la invariancia factorial en función del género y la validez relacionada con otras variables (apoyo social percibido y procrastinación académica). RESULTADOS: Los modelos se ajustaron adecuadamente a los datos y el instrumento probó ser invariante entre varones y mujeres. Además, se confirmó un índice de confiabilidad adecuado y se encontraron asociaciones significativas con variables relacionadas. CONCLUSIONES: Los hallazgos actuales revelan que el Inventario de Estrés Académico SISCO muestra evidencias de validez y confiabilidad en estudiantes universitarios peruanos