References of "Schmits, Emilie"
     in
Bookmark and Share    
Peer Reviewed
See detailCannabis use initiation among adolescents: the predictive role of peers, alcohol, expectancies and internalizing factors.
Schmits, Emilie ULg; Mathys, Cécile ULg; Quertemont, Etienne ULg

Conference (2014, September 05)

Theoretical background: Cannabis is the most commonly used illicit drug among teenagers. Initiation is influenced by environmental factors and personal characteristics, events or experiences. An early ... [more ▼]

Theoretical background: Cannabis is the most commonly used illicit drug among teenagers. Initiation is influenced by environmental factors and personal characteristics, events or experiences. An early initiation increases the risks of problems related to cannabis use (e.g. negative psychosocial effects, delinquent behaviors, mental disorders). Prevent initiation, through the identification of risk/protective factors and their interaction, seems crucial in terms of public health. Research question and significance: This study aimed to examine the progression of use, to identify protective and risk factors of cannabis initiation (including peers, alcohol, expectancies and internalizing factors) and to specifically focus on the influence of social anxiety and its moderators/mediators. Methods: A questionnaire was administered twice to 877 teenagers (49.94% female, M=15.61) with one year interval. Sex, age, demographic variables, peer cannabis use, cannabis-related variables (lifetime, frequency, problems and expectancies), alcohol use, social anxiety, trait-anxiety and depression were assessed through validated scales. Logistic regressions, mediation and moderation analyzes were performed. Results: During the follow-up period, 12.89% of the young participants initiated cannabis use. Several factors significantly predict initiation: alcohol use, peer users, perceptual enhancement and craving effect expectancies. Others factors significantly protect from initiation: negative behavioral effect expectancies and social anxiety. Gender, age, relaxation/social facilitation and cognitive impairment effect expectancies, trait-anxiety and depression do not significantly influence cannabis use initiation. In moderated mediation model, after controlling for relevant variables, social anxiety protected from initiation trough the mediating role of perceptual enhancement and craving effect expectancies. The number of peer users and alcohol use do not moderate this mediation. Negative behavioral effect expectancies do not significantly mediate the relation between social anxiety and cannabis initiation. Interpretation of findings: Through low positive expectancies, adolescents with social anxiety symptoms are less likely to initiate cannabis use than the others, whatever the number of peer users and the alcohol use. Findings are discussed in terms of risk and protective characteristics of relevant factors, in an overall and evolutionary approach including internalizing factors. Results support the identification of internalizing profile of adolescents concerned by prevention or treatment and the importance of social anxiety and expectancies in intervention. [less ▲]

Detailed reference viewed: 35 (7 ULg)
Peer Reviewed
See detailAre expectancies and peers involved in the relation between depressive mood, anxiety and cannabis use in adolescence?
Schmits, Emilie ULg; Quertemont, Etienne ULg; Boulard, Aurore ULg

Poster (2014, July 15)

Background: Cannabis is the most commonly used illicit drug among teenagers and depression is one of the most common psychopathologies in adolescence. The specific symptom of depressive mood is present in ... [more ▼]

Background: Cannabis is the most commonly used illicit drug among teenagers and depression is one of the most common psychopathologies in adolescence. The specific symptom of depressive mood is present in 30% to 40% of adolescents in regular school settings. Links between cannabis use and depression have been highlighted, especially in adolescence. But questions remain about the strength of the association between lifetime cannabis use, depressive mood and anxiety, and about the mechanism underpinning the link. Aim: The aim of this study was to clarify the relationship between depressive mood and lifetime cannabis use in adolescents, particularly through the mediating role of anxiety and cannabis use effect expectancies, and the moderating role of peer cannabis use. Methods: A questionnaire was administered to 1,246 Belgian teenagers aged 16–17 years. ANOVA, chi-square, logistic regressions and mediation/moderation analyses were carried out to model lifetime cannabis use. Results: Depressive mood was positively correlated with lifetime cannabis use. Social anxiety, trait-anxiety and cognitive impairment effect expectancies mediated the effect of depression on lifetime cannabis use. The direct effect of depression on lifetime cannabis use increased when mediators were introduced into the relation, revealing their suppressive effects. The number of peer cannabis users moderated this model. Conclusion: Findings are discussed in terms of potential risk factors (depressive mood) or protective factors (anxiety and expectancies) for lifetime cannabis use, including the self-medication hypothesis. [less ▲]

Detailed reference viewed: 29 (8 ULg)
Peer Reviewed
See detailA longitudinal perspective of alcohol use among adolescents: the predictive role of peers and internalizing factors.
Schmits, Emilie ULg; Glowacz, Fabienne ULg; Quertemont, Etienne ULg

Poster (2014, July 09)

Alcohol is the most commonly used psychoactive substance among teenagers. Consumption is influenced by environmental factors and personal characteristics, events or experiences. High use can lead to ... [more ▼]

Alcohol is the most commonly used psychoactive substance among teenagers. Consumption is influenced by environmental factors and personal characteristics, events or experiences. High use can lead to substantial problems, especially after an early consumption. Detecting and preventing an increase of alcohol use among teenagers, through the identification of risk and protective factors, seems essential in terms of public health. This study aimed to examine the progression of use in young teenagers, to identify protective and risk factors of alcohol use (including peers and internalizing factors) and to specifically focus on the influence of social anxiety. A questionnaire was administered twice to 877 teenagers (49.94% female, M=15.61) with one year interval (T1 and T2). Sex, age, alcohol use, number of friends, social comparison, trait-anxiety, social anxiety and depression were assessed through validated scales. T-test for paired sample and hierarchical regressions were performed. During the follow-up year, the average alcohol use significantly increased. A positive social comparison at T1 significantly predicted alcohol use at T2. The more teenagers positively compared themselves to their friends and felt popular, the more they consume alcohol. A similar significant effect was demonstrated for depression. The more young people manifested depressive affects at T1, the more they used alcohol at T2. However, social anxiety significantly protected from this substance use. More social anxiety at T1 was associated with less alcohol consumption at T2. The number of friends and trait-anxiety at T1 did not significantly influence alcohol use at T2. A positive social comparison and depressive affects could be considered as risk factors, whereas social anxiety could be defined as protective factor. At this developmental period, young people suffering from social anxiety symptoms subsequently use less alcohol, maybe due to the lack of contact with this substance usually socially consumed, whereas more popular and integrated teenagers are more at risk. The present results challenge the tension-reduction model according to which alcohol is consumed to reduce anxious affects and to facilitate social relationships. However, results suggest that alcohol might be used to reduce unpleasant depressive affects. [less ▲]

Detailed reference viewed: 30 (4 ULg)
See detailCannabis et anxiété sociale chez les adolescents : Effets recherchés et ressentis
Schmits, Emilie ULg

Book published by Editions Universitaires Européennes (2014)

Detailed reference viewed: 15 (2 ULg)
Full Text
Peer Reviewed
See detailThe self-report Version of the LSAS-CA: Psychometric Properties of the French Version in a non-clinical adolescent sample
Schmits, Emilie ULg; Heeren, Alexandre; Quertemont, Etienne ULg

in Psychologica Belgica (2014), 54(2), 181-198

The Liebowitz Social Anxiety Scale (LSAS) is one of the most popular measures of social anxiety in adults. The LSAS has been adapted for clinical assessment of children and adolescents (LSAS-CA). The ... [more ▼]

The Liebowitz Social Anxiety Scale (LSAS) is one of the most popular measures of social anxiety in adults. The LSAS has been adapted for clinical assessment of children and adolescents (LSAS-CA). The psychometric properties of the self-report version of the LSAS-CA (LSAS-CA-SR) have been investigated in a Spanish population. However, no study to date has adapted and validated this scale in French. The purpose of this study was to develop a French version of the LSAS-CA-SR and to assess its score reliability and structural validity in a French-speaking community sample. The sample was made up of 1,343 teenagers from secondary schools, aged between 14 and 18 years. Confirmatory factor analyses established the structural validity of the French version of the LSAS-CA-SR and good psychometric properties, including reliable internal consistency, were observed. [less ▲]

Detailed reference viewed: 42 (4 ULg)
Full Text
Peer Reviewed
See detailStyle de vie de consommateurs de drogue conduisant à la délinquance
Born, Michel ULg; Pirenne, Chantal; Schmits, Emilie ULg et al

in Revue Internationale de Criminologie et de Police Technique et Scientifique [= RICPTS] (2013), LXVI

Par des entretiens qualitatifs qui ont pu être menés dans une dizaine de communes belges auprès de personnes ayant accepté de se prêter à un entretien, nous pouvons examiner le lien entre le style de vie ... [more ▼]

Par des entretiens qualitatifs qui ont pu être menés dans une dizaine de communes belges auprès de personnes ayant accepté de se prêter à un entretien, nous pouvons examiner le lien entre le style de vie, la consommation de drogue et la délinquance autorévélée. Par la méthode boule de neige auprès d’usagers de centres ambulatoires d’aide aux toxicomanes et par la méthode de rencontres aléatoires dans des espaces publics, un échantillon de 106 personnes reconnaissant avoir été ou être encore consommateur de drogues illicites a été rencontré. Par l’analyse qualitative, il sera possible de comprendre comment la consommation et la délinquance s’imbriquent chez certaines personnes et structurent leur temps et leur mode de vie. Contrairement aux idées reçues que les consommateurs deviennent délinquants, se marginalisent et aggravent leur toxicomanie, les entretiens permettent de mieux comprendre toutes les nuances individuelles des styles de vie et en particulier le maintien sur une période de vie assez prolongée, de consommations modérées ne conduisant pas à l’exclusion sociale. [less ▲]

Detailed reference viewed: 110 (22 ULg)
Full Text
Peer Reviewed
See detailLes drogues dites "douces": cannabis et syndrome amotivationnel
Schmits, Emilie ULg; Quertemont, Etienne ULg

in Revue Médicale de Liège (2013), 68

Detailed reference viewed: 55 (11 ULg)
Full Text
Peer Reviewed
See detailDévelopper l'autonomie chez les adolescents: l'implémentation de l'outil EVa-GOA dans les services de l'Aide à la Jeunesse
Schmits, Emilie ULg; Vanhees, Théo; Born, Michel ULg

in Observatoire : Revue d'Action Sociale & Médico-Sociale (2011), 68

Detailed reference viewed: 146 (23 ULg)