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Predicting different dimensions of music performance anxiety in young adolescen...

Dias, Pedro; Veríssimo, Lurdes; Silva, Inês

The present study aimed to examine sociodemographic, music-related, and psychological predictors of music performance anxiety (MPA) in a group of 145 adolescent music students. The study also aimed to confirm the bifactorial structure of the Portuguese version of the MPAI-A. Results from the CFA showed an appropriate fit of the bi-dimensional organization of MPA into two dimensions: cognitive-somatic and perfor...


Artificial intelligence for algorithmic trading digital assets: evidence from t...

Guede-Fernández, Federico; Wagle, Yash; Dias, Pedro; Giordano, Ana Paula; Henriques, Lúcio; Costa, Gonçalo; Azevedo, Salomé

Introduction: The Counter-Strike 2 skin market has developed into a multi-billion-dollar digital asset ecosystem, characterized by high volatility, low liquidity, and pricing inefficiencies that differ substantially from traditional financial markets. Despite the growing economic relevance of virtual items, no previous study has systematically examined the use of artificial intelligence for skin trading. Method...


Media multitasking scale: validation study with Portuguese adolescents

Campos, Luísa; Nobre, Bárbara; Morais, Catarina; Veríssimo, Lurdes; Dias, Pedro; Luo, Jiutong

The increasing presence of digital media has amplified the need to study media multitasking (both multiple media activities simultaneously and using media while doing non-media activities). Media Multitasking Scale (MMS) has been used to assess this phenomenon, but it is yet to be validated for a Portuguese population. This study analysed the validity of a Portuguese Version of the MMS (n = 171 Portuguese adole...


Reduced sense of danger following two years of COVID-19: fear inoculation or gr...

Coelho, Carlos M.; Suttiwan, Panrapee; Jaroenkajornkij, Nisara; Araújo, Ana S.; Dias, Pedro; Carvalho, Célia B.; Zsido, Andras N.

The COVID-19 pandemic led to sudden changes in many people's lives, due to the risky and unpredictable nature of the disease and the consequences of public policies aimed at controlling its spread. As the pandemic progressed, people became more aware of what to do, and restrictions were relaxed. Our aim was to investigate the impact of the COVID-19 pandemic on individuals' psychological reactions and to examine...


Artificial intelligence for algorithmic trading digital assets

Guede-Fernández, Federico; Wagle, Yash; Dias, Pedro; Giordano, Ana Paula; Henriques, Lúcio; Costa, Gonçalo; Azevedo, Salomé

Introduction: The Counter-Strike 2 skin market has developed into a multi-billion-dollar digital asset ecosystem, characterized by high volatility, low liquidity, and pricing inefficiencies that differ substantially from traditional financial markets. Despite the growing economic relevance of virtual items, no previous study has systematically examined the use of artificial intelligence for skin trading. Method...


Adaptation and content validity of the Brazilian version of the mental health l...

Moreira, Wanderson Carneiro; Campos, Luísa; Dias, Pedro; de Sousa Nóbrega, Maria do Perpétuo Socorro

OBJECTIVES: to perform cross-cultural adaptation and content validity of the Mental Health Literacy questionnaire into Brazilian Portuguese. METHODS: a validity study developed according to the following stages: (1) assessment of conceptual and item equivalence; (2) idiomatic and semantic equivalence (translation, back-translation, formal assessment, critical analysis by 17 experts and pre-testing with 32 young...


A Pragmatic Approach for Web3 Software Quality Assurance Based on International...

Antunes, Rodrigo Cerejo; Freitas, Liliana; Dias, Pedro; Silva, Luís; Guede-Fernandez, Federico; Azevedo, Salomé

Ensuring software quality in the Web3 ecosystem presents unique challenges due to its decentralized architecture and evolving technical landscape. While international standards such as the SQuaRE (Systems and software Quality Requirements and Evaluation) framework offer structured approaches for quality assurance, they are often perceived as overly theoretical and not directly applicable to blockchain-based app...


Adaptation and validation of the youth internalizing and externalizing problems...

Serrão, Rosário; Dias, Pedro; Andrés, Ana; Bowe, Mhairi; Renshaw, Tyler

Research points to the importance of school-based universal screening focused on psychological health and well-being dimensions to reach a baseline that allows for the allocation of pupils on adequate interventions and supports, and monitors their response to intervention. When screening for mental health problems, it is recommended to screen for internalizing and externalizing behaviors. This study conducted a...


Development of the short and super-short version of the Emergency Reaction Ques...

Zsido, Andras N.; Dias, Pedro; Coelho, Carlos M.

Emergencies are sudden, life-threatening situations that challenge individuals' ability to respond effectively. The Emergency Reaction Questionnaire (ERQ) is a measure widely used to assess individual differences in emergency behavior; however, its 30-item length may limit its utility in certain contexts. Consequently, in this study, we aimed to develop two abbreviated versions of the ERQ: a short form retainin...


Mental health literacy questionnaire short-version: psychometric properties in ...

Costa, Diogo; Costa, Marisa; Moreira, Wanderson Carneiro; Nobrega, Maria do Perpétuo S.S.; Fritz, Birthe; Wessa, Michèle; Kalaitzaki, Argyroula

Objectives: The prevalence of mental health disorders has increased in recent years, representing a major public health concern. Increasing the literacy about mental health signs and symptoms is paramount for effective prevention. Having previously studied the psychometric properties of the Mental Health Literacy Questionnaire for young adults – short version (MHLq-SVa) in six countries, we now extend the valid...


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