Dimensionality of the Penn State Worry Questionnaire and its brief versions by Valencia, Pablo D., Paredes-Angeles, Rubí

“…The results suggest that the PSWQ is an essentially one-dimensional measure and it functions better without reversed items. …”
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Análisis de la Escala de Bienestar Psicológico para Adultos usando el modelo de respuesta graduada by Valencia, Pablo D., Alvarez, Naomi

“…The present study hypothesized that the BIEPS-A is an essentially unidimensional measure and, therefore, can be analysed with unidimensional item response theory models. …”
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Difficulties in Emotion Regulation Scale: A psychometric analysis of its brief versions by Blancas-Guillen, Jesus, Arroyo-Pizarro, Pedro, Quintana, Edson, Tupa-Belizario, Rosa S., Valencia, Pablo D.

“…In both cases, evidence of essential unidimensionality was found. In conclusion, all four versions studied perform well. …”
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