• Physical Fitness, Exercise Self-Efficacy, and Quality of Life in Adulthood: A Systematic Review 

  Medrano-Ureña, María del Rocío; Ortega Ruiz, Rosario; Benítez Sillero, Juan de Dios (MDPI, 2020)

  The aim of the present work is the elaboration of a systematic review of existing research on physical fitness, self-efficacy for physical exercise, and quality of life in adulthood. Method: Using the Preferred Reporting ...

• Bullying and Cyberbullying in Adolescents from Disadvantaged Areas: Validation of Questionnaires; Prevalence Rates; and Relationship to Self-Esteem, Empathy and Social Skills 

  Martínez, Jacinto; Rodríguez Hidalgo, Antonio Jesús; Zych, Izabela (MDPI, 2020)

  Although bullying and cyberbullying have been widely studied in diverse geographical areas, the number of studies in isolated regions, located in rainforests such as the Peruvian Amazonia, is low. Most research has been ...

• Development and Validation of the Social Network Addiction Scale (SNAddS-6S) 

  Cuadrado, Esther; Rojas, Rocío; Tabernero Urbieta, Carmen (MDPI, 2020)

  The use of social networks has increased exponentially, especially among youth. These tools offer many advantages but also carry some risks such as addiction. This points to the need for a valid multifactorial instrument ...

• Romantic Competence and Adolescent Courtship: The Multidimensional Nature of the Construct and Differences by Age and Gender 

  Viejo Almanzor, Carmen; Toledano, Noemí; Ortega Ruiz, Rosario (MDPI, 2020)

  Adolescent courtship is emerging as an important developmental process which impacts social balance and adjustment in the teenage years. Both the cultural context and different individual competencies seem to determine the ...

• Influence of Verbal Behavior Training on Performance for Sustainable Development in Childhood and Early Adolescence 

  Maldonado, Miguel Á.; Alós Cívico, Francisco; Povedano-Díaz, Amapola (MDPI, 2020)

  The effective teaching of language is an aspect of special relevance regarding the good adjustment of children in contexts such as school, family, or community. This article performs an experimental procedure to check which ...

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