Cristina Nunes

Prof. Cristina Nunes

Psychology Research Centre (CIP-UAL) and University of Algarve, Faro, Portugal
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Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2007 in AIDS Care
Verified
Journal Article
Closed access
AMA. Muñoz-Silva
A. Muñoz-Silva
MSManuel Sanchez-Garcia
Manuel Sanchez-Garcia
Cristina NunesCristina Nunes
Cristina Nunes
Ana Teresa MartinsAna Teresa Martins
Ana Teresa Martins
There is much evidence that demonstrates that programs and interventions based on the theoretical models of the Theory of Reasoned Action (TRA) and the Theory of Planned Behaviour (TPB) have been effective in the prevention of the sexual transmission of HIV. The objective of this work is to compare the effectiveness of both models in the prediction of condom use, distinguishing two components inside the variable Perceived Behavioural Control of the TPB model: self-efficacy and control. The perspective of gender differences is also added. The study was carried out in a sample of 601 Portuguese and Spanish university students. The results show that the females have a higher average in all the TPB variables than males, except in the frequency of condom use: females request the use of condoms less frequently than males. On the other hand, for both females and males the TPB model predicts better condom-use intention than the TRA. However there are no differences between the two models in relation to the prediction of condom-use behaviour. For prediction of intention, the most outstanding variable among females is attitude, while among males they are subjective norm and self-efficacy. Finally, we analyze the implications of these data from a theoretical and practical point of view.

18 March 2020 in Journal of Social Work
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Cristina NunesCristina Nunes
Cristina Nunes
Cátia MartinsCátia Martins
Cátia Martins
LALara Ayala-Nunes
Lara Ayala-Nunes
FMFilomena Matos
Filomena Matos
ECEmilia Costa
Emilia Costa
AGAndrea Gonçalves
Andrea Gonçalves
Perceived social support has often been investigated due to its direct and indirect effects in reducing the impact of several risk factors on physical and psychological well-being. Moreover, many studies have revealed a link between social support and positive parenting, which in turn has an impact on children’s well-being. In Portugal, there is a significant lack of studies in this area. The aim of the present study was to analyze the relationship between parents’ perceived social support and children’s psychological adjustment. The sample consisted of 409 parents (83.13% mothers) living in the region of Algarve (South of Portugal). The Duke-UNC Functional Social Support and the Strengths and Difficulties Questionnaires were used. The results showed that, on average, families had a social support network of nine people, with a balanced presence of family (M = 4.25, SD = 3.54) and friends (M = 4.36, SD = 3.17). Parents reported medium-high levels of confidant and affective support, but instrumental support was lower. However, single-parent families, immigrant families, and divorced parents were found to be more socially isolated and received less support than they needed. Affective social support showed predictive value for child psychological adjustment. These findings suggest that developing universal and selective parental education and support programs that focus on strengthening informal social support networks is needed, especially for vulnerable families. Implications for social workers who intervene with families are discussed.

31 October 2020 in Psicologia: Reflexão e Crítica
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BRBruno Rocha
Bruno Rocha
Cristina NunesCristina Nunes
Cristina Nunes
Aim: Several health organizations have been expressing concern about the amount of time children spend using electronic devices and about the benefits and damages of the use of touchscreen devices, such as smartphones or tablets, for the development and behavior of children under the age of 5. A systematic review was carried out in order to understand the impact of touchscreen device usage toward children’s development and behavior under the age of 5. Methods: Using the PRISMA method, from a total of 6314 studies found in online databases, searched in English, between 01/01/2000 and 01/10/2018, 11 studies were selected for analysis. Results: The results revealed that, in children under the age of 5, the damages of the use of touchscreen devices are superior to the benefits that may result, especially when there are more hours of screen time. More importance is given to the quality of the child-adult relationship and not to the use of touchscreen devices. Nevertheless, some studies emphasize some aspects that may reduce the negative effects, such as moderate use, less screen time, parental monitoring, and viewing educational programs in an academic environment. Conclusions: Guidelines that should be given to parents about the use of touchscreen devices by children are discussed. The limitation of this study was the difficulty in finding studies directed to the desired age and type of electronic device. This may be taken as a potential cause of bias.

1 September 2018 in International Journal of Clinical and Health Psychology
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Journal Article
Open access
Cristina NunesCristina Nunes
Cristina Nunes
LALara Ayala-Nunes
Lara Ayala-Nunes
PPPedro Pechorro
Pedro Pechorro
AGAnnette M. La Greca
Annette M. La Greca
Background/Objective: Social anxiety is a common issue arising in adolescence that can cause significant impairment and have detrimental consequences for development in the absence of treatment. In this study we examined the factor structure and the psychometric properties of a 12-item short form of the Portuguese-Language Social Anxiety Scale for Adolescents (SAS-A-SF). Method: A community adolescent sample (N = 835) and a young offender sample (N = 244) completed the SAS-A, the Basic Empathy Scale and the Reactive-Proactive Aggression Questionnaire. Confirmatory factor analysis, internal consistency, cross gender and cross sample invariance, convergent and discriminant validity of the SAS-A-SF were analyzed. Results: The confirmatory factor analysis revealed that the 3-factor second-order model obtained the best fit.The results provided evidence that the SAS-A-SF is a psychometrically sound instrument that shows measurement invariance across genders and across samples, good reliability and positive correlations with empathy. Conclusions: The Portuguese version of SAS-A-SF is a useful, time-efficient tool for both researchers and practitioners who need to assess social anxiety, a relevant construct in adolescent psychopathology.

28 July 2016 in International Journal of Offender Therapy and Comparative Criminology
Verified
Journal Article
Open access
PPPedro Pechorro
Pedro Pechorro
VHVictoria Hidalgo
Victoria Hidalgo
Cristina NunesCristina Nunes
Cristina Nunes
LJLucía Jiménez
Lucía Jiménez
The main aim of the present study was to examine the factor structure, internal consistency, and some additional psychometric properties of the Antisocial Process Screening Device–Self-Report (APSD-SR) among a large forensic sample of incarcerated male juvenile offenders (N = 438). The results, based on this forensic sample, support the use of the APSD-SR in terms of its factor structure, and internal consistency despite the fact an item had to be removed from the callous-unemotional (CU) dimension. Statistically significant positive associations were found with measures of psychopathic traits, CU traits, narcissism, and aggression, as well as negative associations with a measure of empathy. Findings provide support for the use of the APSD-SR among the incarcerated male juvenile offender population.

23 June 2016 in Journal of Social Work
Verified
Journal Article
Closed access
LALara Ayala-Nunes
Lara Ayala-Nunes
Cristina NunesCristina Nunes
Cristina Nunes
ILIda Lemos
Ida Lemos
Families that are at psychosocial risk live under personal and contextual circumstances that hinder their parenting skills. They frequently lack the resources necessary for addressing the challenges of parenting and encounter multiple stressful life events. Social support may help diminish the parenting stress that is experienced from living in a disadvantaged environment by enhancing coping strategies. However, previous research examining the associations between parenting stress and social support among at-risk families has been inconclusive. This study analyzed the psychosocial profile of at-risk Portuguese families, the size and composition of their social support networks and the associations between social support and parenting stress. Participants consisted of 167 parents (80% mothers) who received assistance from Child Protection Services. Measures included the Parenting Stress Index-Short Form, the Arizona Social Support Interview Schedule and a socio-demographic questionnaire. Parenting stress levels were extremely high, with 44.51% of parents showing clinically significant levels. Emotional support was the type of support that was most closely related to parental distress, namely the network size available for providing emotional support (r = −.27, p = .000) and satisfaction with the emotional support received (r = −.24, p = .006). The size of the emotional support network was significantly smaller among parents who reported clinically significant levels of parenting stress. Hence, having the opportunity to express feelings and concerns as well as engaging in social interactions during leisure time may serve as protective factors against parental stress in at-risk families. Implications of for the interventions of professionals who work with at-risk families are discussed.