Confirmatory factor analysis and exploratory structural equation modeling of the structure of attention-deficit/hyperactivity disorder symptoms in adults
- Authors: Gomez, Rapson , Stavropoulos, Vasileios
- Date: 2021
- Type: Text , Journal article
- Relation: Assessment Vol. 28, no. 6 (Sep 2021), p. 1570-1582
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- Description: The Depression Anxiety and Stress Scales-21 (DASS-21) involves a simple structure firstorder three-factor oblique model, with factors for depression, anxiety, and stress. Recently, concerns have been raised over the value of using confirmatory factor analysis (CFA) for studying the factor structure of scales in general. However, such concerns can be circumvented using exploratory structural equation modeling (ESEM). Consequently, the present study used CFA and ESEM with target rotation to examine the factor structure of the DASS21 among an adult community. It compared first-order CFA, ESEM with target rotation, bifactor CFA (BCFA), and bi-factor BESEM with target rotation model with group/specific factors for depression, anxiety, and stress. A total of 738 adults (males = 374, and females =364; M = 25.29 years; SD = 7.61 years) completed the DASS-21. While all models examined showed good global fit values, one or more of the group/specific factors in the BCFA, ESEM with target rotation and BESEM with target rotation models were poorly defined. As the firstorder CFA model was most parsimonious, with well-defined factors that were also supported in terms of their reliabilities and validities, this model was selected as the preferred DASS21 model. The implications of the findings for use and revision of the DASS-21 are discussed
Greek validation of the factor structure and longitudinal measurement invariance of the strengths and difficulties questionnaire-self report (SDQ-SR) : exploratory structural equation modelling
- Authors: Gomez, Rapson , Motti-Stefanidi, Frosso , Jordan, Scott , Stavropoulos, Vasileios
- Date: 2021
- Type: Text , Journal article
- Relation: Child Psychiatry and Human Development Vol. 52, no. 5 (2021), p. 880-890
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- Description: The study examined the factor structure and longitudinal measurement invariance over three time points (1-year apart) of the Strengths and Difficulties Questionnaire-Self Report (SDQ-SR) for ratings provided by adolescents in Greece. It used exploratory structural equation modelling (ESEM) to achieve these two goals. At time point one, a total of 968 adolescents (males = 508, and females = 460) between 12 and 17.9 years completed the SDQ-SR. In relation to factor structure, ESEM tested the fit of one- to five-factor models. The findings were interpreted as indicating most support for the ESEM model with three factors (the factors being dysregulation, peer problems, and prosocial behaviour). This model showed support for configural invariance and full metric invariance across the three time points. Except for two thresholds, all other thresholds were also invariant across the three time points. Thus, there was good support for longitudinal measurement invariance. The implications of the findings for use of the SDQ-SR are discussed. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
In search of the optimum structural model for internet gaming disorder
- Authors: Stavropoulos, Vasileios , Gomez, Rapson , Griffiths, Mark
- Date: 2021
- Type: Text , Journal article
- Relation: BMC Psychiatry Vol. 21, no. 1 (2021), p.
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- Description: Background: Internet gaming Disorder (IGD) constitutes a recently proposed clinical disorder (American Psychiatric Association, Diagnostic and statistical manual of mental disorders, 2013). The present study examined if IGD is best conceptualized as categorical (present/absent), or dimensional (severity ranging from low to high), or both (i.e., hybrid of categorical/dimensional). Methods: Ratings of the nine DSM-5 IGD symptoms, as presented in the Internet Gaming Disorder Scale 9-Short Form (Pontes & Griffiths, Comput Hum Behav 45:137-143, 2015), from 738 gamers, aged 17 to 72 years, were collected. Confirmatory factor analysis (CFA), latent class analysis (LCA), and factor mixture modelling analysis (FMMA) procedures were applied to determine the optimum IGD model. Results: Although the findings showed most support for a FFMA model with two classes and one factor, there was also good statistical and substantive support for the one-factor CFA model, and the LCA model with three classes. Conclusion: It was concluded that while the optimum structure of IGD is most likely to be a hybrid model (i.e., concurrently categorical and dimensional), a uni-dimensional model and/or a three-class categorical model are also plausible. © 2021, The Author(s).
Unraveling the optimum latent structure of attention-deficit/hyperactivity disorder : evidence supporting ICD and HiTOP frameworks
- Authors: Gomez, Rapson , Liu, Lu , Krueger, Robert , Stavropoulos, Vasileios , Downs, Jenny
- Date: 2021
- Type: Text , Journal article
- Relation: Frontiers in Psychiatry Vol. 12, no. (2021), p.
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- Description: Attention Deficit/hyperactivity disorder (ADHD) is conceptualized differently in the Diagnostic and Statistical Manual (DSM-5), the International Classification of Diseases-10 (ICD-10), and the Hierarchical Taxonomy of Psychopathology (HiTOP) frameworks. This study applied independent cluster confirmatory factor analysis (ICM-CFA), exploratory structure equation model with target rotation (ESEM), and the S-1 bi-factor CFA approaches to evaluate seven ADHD models yielded by different combinations of these taxonomic frameworks. Parents and teachers of a community sample of children (between 6 and 12 years of age) completed the Disruptive Behavior Rating Scale (for ADHD symptoms) and the Strengths and Difficulties Questionnaire (for validation). Our findings for both parent and teacher ratings provided the most support for the S-1 bi-factor CFA model comprised of (i) a g-factor based on ICD-10 impulsivity symptoms as the reference indicators and (ii) inattention and hyperactivity as specific factors. However, the hyperactivity-specific factor lacked clarity and reliability. Thus, our findings indicate that ADHD is best viewed as a disorder primarily reflecting impulsivity, though with a separable inattention (but no hyperactivity) component, i.e., “ADID (attention deficit/impulsivity disorder).” This model aligns with the HiTOP proposals. © Copyright © 2021 Gomez, Liu, Krueger, Stavropoulos, Downs, Preece, Houghton and Chen.
Associations of behavioral inhibition system with negatively biased social cognitions : moderation by the behavioral approach system
- Authors: Gomez, Rapson , Watson, Shaun , Stavropoulos, Vasileios
- Date: 2020
- Type: Text , Journal article
- Relation: Personality and Individual Differences Vol. 166, no. (2020), p.
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- Description: Using the behavioral inhibition system (BIS) and behavioral approach system (BAS) subscales of the BIS/BAS Scales (Carver & White, 1994), this study examined how the association of the BIS and the negatively biased social cognitions of social comparison, social ineptness, negative self-statements, and fear of negative evaluation, were moderated by BAS-Drive and BAS-Reward Responsiveness. A total of 302 (males = 101, females = 201) adults (age ranging from 18 to 65 years) from the general community completed questionnaires covering the different study variables. The findings indicted moderation by BAS-D for the predictions of social comparison, social ineptness, and negative self-statements, and moderation by BAS-RR for the predictions of social ineptness, negative self-statements, and fear of negative evaluation. For moderation effects, moderation was present at lower levels of BAS-D, and at higher levels of BAS-RR. © 2020
Correlated trait–correlated method minus one analysis of the convergent and discriminant validity of the conners 3 short forms
- Authors: Gomez, Rapson , Vance, Alasdair , Stavropoulos, Vasileios
- Date: 2020
- Type: Text , Journal article
- Relation: Assessment Vol. 27, no. 7 (2020), p. 1463-1475
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- Description: This study used the correlated trait–correlated method minus one model to examine the convergent and discriminant validity of the scales of the Conners 3 Short [C 3 (S)]. The C 3 (S) scales in the analysis were inattention (IN), hyperactivity/impulsivity (HY), learning problems (LP; learning problems/executive functioning from the teacher version), aggression (AG), and peer relations (PR, only for parent and teacher versions). A total of 529 adolescents and children (75% males, mean age = 11.75 years, SD = 2.97 years) provided self-ratings, and were also rated by their mothers and teachers. The findings indicated no support for the convergence of IN and HY across the three respondents. In contrast, there was convergence for LP, AG, and PR. There was support for the discriminant validity of the traits, except between IN and HY. The findings are discussed in relation to the convergent and discriminant validity of the C 3 (S) measures, and the clinical use of the C 3 (S). © The Author(s) 2018.
Measurement invariance across adult self-ratings of current and retrospective childhood ADHD symptoms
- Authors: Gomez, Rapson , Stavropoulos, Vasileios , Watson, Shaun
- Date: 2020
- Type: Text , Journal article
- Relation: Journal of Psychopathology and Behavioral Assessment Vol. 42, no. 3 (2020), p. 475-487
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- Description: This study examined measurement invariance across adult self-ratings of current and retrospective childhood ADHD symptoms. A group of 265 adults (135 females and 130 males) from the general community completed ratings of their current and retrospective childhood ADHD symptoms presented in the Barkley Adult ADHD Rating Scale-IV (BAARS-IV; Barkley 2011). Initially, confirmatory factor analysis (CFA) of the both sets of ratings provided more support for a bifactor ADHD model (a model with an orthogonal general factor and specific factors for inattention [IA] and hyperactivity/impulsivity [HI]) over a 2-factor oblique model (with factors for IA and HI). Using the bifactor model, chi-square difference test indicated non-invariance for 12 factor loadings on the general factor, and 13 thresholds. Differences in approximate fit indices indicated that only 4 factor loadings were not invariant. The clinical theoretical, and psychometric implications of the findings are discussed. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
Personality Inventory for DSM-5, Brief Form : Factor structure, reliability, and coefficient of congruence
- Authors: Gomez, Rapson , Watson, Shaun , Stavropoulos, Vasileios
- Date: 2020
- Type: Text , Journal article
- Relation: Personality Disorders-Theory Research and Treatment Vol. 11, no. 1 (2020), p. 69-77
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- Description: The Personality Inventory for Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition. Brief Form (PID-5-BF), is a 25-item self-report questionnaire that measures the severity of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition-proposed personality pathology constructs of negative affectivity, detachment. antagonism, disinhibition, and psychoticism. The current study used exploratory factor analysis, exploratory structural equation modeling, and confirmatory factor analysis to examine the support for the theoretically proposed 5-factor model. In total, 502 adults (male = 182, female = 320, age = 18-67 years [M = 28.93, SD = 10.95]) provided ratings for the PID-5-BF. For the theorized 5-factor model, there was support for its factor structure, internal consistency reliabilities (Cronbach's. ordinal alpha, and omega) of the factors, and coefficient of congruence of the factors considering a previous Danish study. The findings also supported a strong general factor for a bifactor model involving a general factor alongside the 5 group factors. Together, the findings support the use of the 5 personality pathology constructs and the total PID-5-BF scores in clinical and research settings.
User-avatar bond profiles : how do they associate with disordered gaming?
- Authors: Stavropoulos, Vasileios , Gomez, Rapson , Mueller, Astrid , Yucel, Murat , Griffiths, Mark
- Date: 2020
- Type: Text , Journal article
- Relation: Addictive Behaviors Vol. 103, no. (2020), p.
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- Description: Aims: The avatar constitutes the in-game representation of the gamer. Although aspects of the user-avatar bond (UAB) have been associated with disordered gaming, there is a need for clearer understanding concerning the impact of potential UAB profiles. Methods: To address this need, the present study recruited a normative sample of 1022 World of Warcraft (WoW) players (Mage = 28.55 years, SD = 9.90). Participants completed the User-Avatar Questionnaire (to assess UAB aspects such as identification, immersion, and compensation), the Proteus-Effect Scale (to assess transference of the avatar's behaviour in real life), and the Internet Gaming Disorder Scale–Short-Form (to assess disordered gaming). Results: Latent class analysis indicated the existence of three UAB profiles, ‘differentiated gamers’ (DGs), ‘identified gamers’ (IGs) and ‘fused gamers’ (FGs). The DGs were characterized by low scores across all UAB aspects. The IGs did not report significant Proteus Effect (PE) or immersion behaviours, and despite being more identified with their avatar, did not significantly compensate through it. The FGs presented with higher PE, immersion, and compensation, although they did not significantly identify with their avatars, possibly due to having idealized them. Disordered gaming behaviours were significantly lower for the DGs and sequentially higher for the IGs and the FGs. Preoccupation and mood modification behaviours related to gaming disorder were distinctively associated with FGs. Conclusion: Disordered gaming assessment and treatment implications of the UAB profiles are discussed. © 2019 Elsevier Ltd
- Description: Murat Yucel has received funding from Monash University , and Australian Government funding bodies such as the National Health and Medical Research Council (NHMRC; including Fellowship #APP1117188 ), the Australian Research Council (ARC), and the Department of Industry, Innovation and Science. He has also received philanthropic donations from the David Winston Turner Endowment Fund, Wilson Foundation, as well as payment from law firms in relation to court and/or expert witness reports. The funding sources had no role in the design, management, data analysis, presentation, or interpretation and write-up of the data.
Item response theory analysis of the recoded Internet Gaming Disorder Scale-Short-Form (IGDS9-SF)
- Authors: Gomez, Rapson , Stavropoulos, Vasileios , Beard, Charlotte , Pontes, Halley
- Date: 2019
- Type: Text , Journal article
- Relation: International Journal of Mental Health and Addiction Vol. 17, no. 4 (2019), p. 859-879
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- Description: Based on the nine criteria for Internet gaming disorder (IGD) in DSM-5, the Internet Gaming Disorder Scale 9-Short Form (IGDS9-SF; Pontes and Griffiths 2015) is the most widely used questionnaire for assessing IGD. The present study examined support for the unidimensional factor structure of the instrument, with a group of 868 adolescent and adult gamers from the USA, with criteria recoded as present or absent. The two-parameter logistic model (2PLM) was used to examine the item response theory properties of the criteria included in the measure. Confirmatory factor analysis supported the one-factor model. The 2PLM analysis indicated that all the criteria were strong discriminators of high and low latent IGD. Furthermore, the items measured more of the GAD dimension and with more precision from around +2 SD from the mean trait level. The implications of the findings for interpreting the IGDS9-SF scores for clinical practice are discussed.
Measurement invariance : The case of measuring romantic attachment in Greek and Cypriot adolescents
- Authors: Stavropoulos, Vasileios , Mastrotheodoros, Stefanos , Papapetrou, Stelios , Gomez, Rapson , Beard, Charlotte , Motti-Stefanidi, Frosso
- Date: 2019
- Type: Text , Journal article
- Relation: European Journal of Developmental Psychology Vol. 16, no. 3 (2019), p. 362-371
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- Description: The experiences in close relationships revised (ECR-R) is widely used to assess romantic attachment dimensions. Investigating cultural limitations in its applicability is imperative. This study aims to examine the instrument’s: (1) factor structure in two large and normative samples of Greek (N = 1706, M age = 16.16; SD = 2.16; 49.7% male) and Cypriot (N = 1279; M age = 15.54; SD = 0.65; 44.9% male) adolescents; (2) measurement invariance between these groups, accounting for potential gender and age effects. Results supported the two-factor structure and indicated partial invariance of the constructs between Greek and Cypriot adolescents. Findings support limitations in the use of instruments adapted for Greece in Cyprus.
ROC analyses of relevant conners 3–short forms, CBCL, and TRF scales for screening ADHD and ODD
- Authors: Gomez, Rapson , Vance, Alasdair , Watson, Shaun , Stavropoulos, Vasileios
- Date: 2019
- Type: Text , Journal article
- Relation: Assessment Vol. 28 , no.1 (2021), p. 73-85
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- Description: Receiver operating characteristic curve analysis was used to examine and compare the diagnostic accuracy of the Conners 3–Parent Short Form (C 3-P(S)), and the Conners 3–Teacher Short Form (C 3-T(S)) inattention and hyperactivity/impulsivity scales, and the Child Behavior Checklist (CBCL) and Teacher’s Report Form (TRF) attention problems scales, to distinguish those with and without attention deficit/hyperactivity disorder (ADHD). It also examined and compared the diagnostic accuracy of the C 3-P(S) and C 3-T(S) Aggression (AG) scales, and the CBCL and TRF Aggressive Behavior (AB) scales, to distinguish those with and without oppositional defiant disorder (ODD). The study used archival data (N = 150-261) involving a large group of clinic-referred children aged between 6 and 11 years who had been interviewed for clinical diagnosis of ADHD and ODD using the Anxiety Disorders Interview Schedule for Children (ADISC-IV) as the reference standard, and then administered one or more of the screening measures. The findings provided empirical support for the use of the C 3-P(S) and CBCL for identifying ADHD and ODD, with the CBCL aggressive behavior scale having better ability to detect ODD. The implications of the findings for using the screening scales for diagnoses of ADHD and ODD are discussed. © The Author(s) 2019.
Depression, Internet Gaming Disorder, and the moderating effect of the gamer-avatar relationship : An exploratory longitudinal study
- Authors: Burleigh, Tyrone , Stavropoulos, Vasileios , Liew, Lucas , Adams, Baxter , Griffiths, Mark
- Date: 2018
- Type: Text , Journal article
- Relation: International Journal of Mental Health and Addiction Vol. 16, no. 1 (2018), p. 102-124
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- Description: Research into Internet gaming disorder (IGD) literature largely uses cross-sectional designs and seldom examines gaming context-related factors. Therefore, the present study combined a cross-sectional and longitudinal design to examine depression and the gameravatar relationship (GAR) as risk factors in the development of IGD among emerging adults. IGD behaviors of 125 gamers (64 online gamers, Mage = 23.3 years, SD = 3.4; 61 offline gamers, Mage = 23.0 years, SD = 3.4) were assessed using the nine-item Internet Gaming Disorder Scale Short Form (IGDS-SF9; Pontes and Griffiths Revista Argentina de Ciencias del Comportamiento, 7, 102–118, 2015a; Computers in Human Behavior, 45, 137–143, 2015b). The Self-Presence Scale (Ratan and Dawson Communication Research, 2015) and the Beck Depression Inventory (Beck et al. 1996) were also used to assess gamers’ levels of GAR and depressive symptoms, respectively. Regression and moderation analyses revealed that depression and the GAR act as individual risk factors in the development of IGD over time. Furthermore, the GAR exacerbates the IGD risk effect of depression.
Measurement invariance of the Internet Gaming Disorder Scale-Short-Form (IGDS9-SF) between Australia, the USA, and the UK
- Authors: Stavropoulos, Vasileios , Beard, Charlotte , Griffiths, Mark , Buleigh, Tyrone , Gomez, Rapson , Pontes, Halley
- Date: 2018
- Type: Text , Journal article
- Relation: International Journal of Mental Health and Addiction Vol. 16, no. 2 (2018), p. 377-392
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- Description: The Internet Gaming Disorder Scale–Short-Form (IGDS9-SF) is widely used to assess Internet Gaming Disorder behaviors. Investigating cultural limitations and implications in its applicability is imperative. One way to evaluate the cross-cultural feasibility of the measure is through measurement invariance analysis. The present study used Multigroup Confirmatory Factor Analysis (MGCFA) to examine the IGDS9-SF measurement invariance across gamers from Australia, the United States of America (USA), and the United Kingdom (UK). To accomplish this, 171 Australian, 463 USA, and 281 UK gamers completed the IGDS9-SF. Although results supported the one-factor structure of the IGD construct, they indicated cross-country variations in the strength of the relationships between the indicators and their respective factor (i.e., non-invariant loadings of items 1, 2, 5), and that the same scores may not always indicate the same level of IGD severity across the three groups (i.e., non-invariant intercepts for items 1, 5, 7, 9).
Test-retest measurement invariance of clinic referred children’s ADHD symptoms
- Authors: Gomez, Rapson , Vance, Alasdair , Stavropoulos, Vasileios
- Date: 2018
- Type: Text , Journal article
- Relation: Journal of Psychopathology and Behavioral Assessment Vol. 40, no. 2 (2018), p. 194-205
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- Description: This study examined the test-retest measurement invariance of ratings of the ADHD symptoms. Mothers of a group of 217 clinic-referred children (boys = 169, girls = 49; age range = 7 to 17 years) completed ratings of the ADHD symptoms presented in a modified version of the Strengths and Weaknesses of ADHD-Symptoms and Normal Behavior Scale (SWAN-M) twice, 12 months apart. Confirmatory factor analysis (CFA) of their ratings at both time points provided more support for the bifactor model of ADHD [orthogonal general and specific factors for inattention (IA) and hyperactivity/impulsivity (HI) symptoms] over the 2-factor oblique model (factors for inattention IA and HI symptoms). For the bifactor model, measurement invariance testing using multiple-group CFA indicated support for configural and full scalar test-retest invariance when the chi-square difference test was applied. For metric invariance, all but one symptom showed invariance. When the differences in approximate fit indices were applied, there was support for full measurement invariance (configural, metric and scalar). The findings indicate that observed scores (based on maternal ratings of the SWAM-M), twelve months apart, are comparable as they have the same measurement properties. Several practical, theoretical, research and clinical implications of the findings are discussed. © 2017, Springer Science+Business Media, LLC, part of Springer Nature.
The fatigue and depressive symptom relationship in mothers of young children : The moderating role of mindfulness
- Authors: Riley, Kym , Gent, Angela , McLaren, Suzanne , Caunt, Jeremy , Stavropoulos, Vasileios
- Date: 2018
- Type: Text , Journal article
- Relation: Mindfulness Vol. 9, no. 6 (2018), p. 1955-1965
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- Description: Previous studies have demonstrated that fatigue is a risk factor for depressive symptoms in mothers of young children. The aim of the present study was to investigate whether the five facets of mindfulness moderated the relationship between fatigue and depressive symptoms in mothers of young children. A sample of 723 mothers of children aged 1–5 years completed the Fatigue Assessment Scale, the Centre for Epidemiologic Studies Depression Scale, and the Five Facet Mindfulness Questionnaire-Short Form. Results showed that four out of the five mindfulness facets (non-judging of inner experience, non-reactivity to inner experience, acting with awareness, and describing) weakened the relationship between fatigue and depressive symptoms. Interaction effects were found to be small. Further investigation of the unique roles of the five mindfulness facets as well as other possible protective factors and interventions that may weaken the fatigue-depressive symptom relationship in mothers of young children is warranted.
A multilevel longitudinal study of obsessive compulsive symptoms in adolescence: Male gender and emotional stability as protective factors
- Authors: Stavropoulos, Vasileios , Moore, Kathleen , Lazaratou, Helen , Dikeos, Dimitris , Gomez, Rapson
- Date: 2017
- Type: Text , Journal article
- Relation: Annals of General Psychiatry Vol. 16, no. 42 (2017), p.1-12
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- Description: The severity of obsessive compulsive symptoms (OCS) is suggested to be normally distributed in the general population, and they appear to have an impact on a range of aspects of adolescent development. Importantly, there are individual differences regarding susceptibility to OCS. In the present repeated measures study, OCS were studied in relation to gender and emotional stability (as a personality trait) using a normative sample of 515 adolescents at ages 16 and 18 years. OCS were assessed with the relevant subscale of the SCL-90-R and emotional stability with the Five Factor Questionnaire. A three-level hierarchical linear model was calculated to longitudinally assess the over time variations of OCS and their over time links to gender and emotional stability, while controlling for random effects due to the nesting of the data. Experiencing OCS increased with age (between 16 and 18 years). Additionally, male gender and higher emotional stability were associated with lower OCS at 16 years and these remained stable over time. Results indicate age-related and between individual differences on reported OCS that need to be considered for prevention and intervention planning.
Age of initiation and Internet gaming disorder : The role of self-esteem
- Authors: Beard, Charlotte , Haas, Amie , Wickham, Robert , Stavropoulos, Vasileios
- Date: 2017
- Type: Text , Journal article
- Relation: Cyberpsychology, Behavior, and Social Networking Vol. 20, no. 6 (2017), p. 397-401
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- Description: The link between early initiation and problematic use has been observed for substance use disorders; however, this link has not been as clearly established for Internet gaming disorder (IGD). Available studies indicate that individuals who initiate Internet use at younger ages exhibit an increased risk for general Internet addiction. Prior research also suggests unique cognitive processes in online gaming, such that an individual's overall sense of self-worth can become contingent upon self-esteem derived from the gaming environment. The current research examines the mediational role of self-esteem variables in the relationship between age of initiation and IGD symptomatology. Data were analyzed from 1,044 adult participants (mean age = 30.90; standard deviation: 9.28; 35.0% female) recruited from Amazon Mechanical Turk who reported playing massively multiplayer online role-playing games. Age of gaming initiation is directly linked to IGD, as earlier age predicted overall IGD symptom severity (b = -0.10, 95% confidence interval [CI: -0.17, -0.03]), controlling for self-esteem factors. In addition, self-esteem factors emerged as mediators of the effect, where global self-esteem served as a protective factor (b = -0.05, 95% CI: [-0.07, -0.02]) and high gaming-contingent self-worth (GCSW; b = -0.10, 95% CI: [-0.15, -0.04]) was associated with more negative outcomes. Earlier age of gaming initiation is associated with IGD symptomatology. Although risks of screen time are often referred to in terms of physical consequences, the present study provides support regarding the inclusion of self-esteem factors in the link between early use and IGD. © Copyright 2017, Mary Ann Liebert, Inc. 2017.
Cloninger's personality dimensions and ADHD : A meta-analytic review
- Authors: Gomez, Rapson , Van Doorn, George , Watson, Shaun , Gomez, Andre , Stavropoulos, Vasileios
- Date: 2017
- Type: Text , Journal article , Review
- Relation: Personality and Individual Differences Vol. 107, no. (2017), p. 219-227
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- Description: A meta-analysis of up to 20 datasets is reported that examined the relationships between Cloninger's personality dimensions and Attention Deficit Hyperactivity Disorder (ADHD). Cloninger's model comprises four temperament (Novelty-Seeking, Harm-Avoidance, Reward Dependence, and Persistence) and three character (Self-Directedness, Cooperation, and Self-Transcendence) dimensions. Major findings were that all personality dimensions, except Self-Transcendence, were significantly associated with ADHD. These associations had different directions and magnitudes of relationship with ADHD. The associations were especially strong for Novelty-Seeking and Self-Directedness, being positive for Novelty-Seeking and negative for Self-Directedness. In addition, the association between ADHD and Persistence was moderated by age (stronger in children than adults) and source (stronger in clinical samples than community samples). Further, the association between harm avoidance and ADHD was moderated by age (strong and significant in adults, but not significant in children). Findings are discussed in relation to past work and the different strengths of the associations found between Cloninger's personality dimensions and ADHD, developmental differences in these relationships, implications for theoretical models of ADHD, the influence of biological and environmental factors in the expression of ADHD, implications for treatment and diagnosis, and the underlying processes for the relationships between personality and ADHD. © 2016 Elsevier Ltd
A multilevel longitudinal study of adolescent Internet addiction : The role of obsessive–compulsive symptoms and classroom openness to experience
- Authors: Stavropoulos, Vasileios , Gentile, Douglas , Motti-Stefanidi, Frosso
- Date: 2016
- Type: Text , Journal article
- Relation: European Journal of Developmental Psychology Vol. 13, no. 1 (2016), p. 99-114
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- Description: Internet addiction (IA) in adolescence was longitudinally examined in relation to individual obsessive–compulsive symptoms and the personality trait of openness to experience (OTE) at the classroom level. The study consists of a two-point measure of a normative sample comprising 648 Greek adolescents (retention = 363, age 16–18 years, wave 1: age = 15.75 years, SD = 0.57, males = 46.2%, females = 53.8%). IA was assessed with the IA Test (Young, K. S. [1998]. Caught in the net: How to recognize the signs of internet addiction—And a winning strategy for recovery. New York, NY: Wiley), obsessive–compulsive symptoms with the Symptom check list 90 revised (Derogatis, L. R., & Savitz, K. L. [1999]. The SCL-90-R, brief symptom inventory, and matching clinical rating scales. In M. E. Maruish (Ed.), The use of psychological testing for treatment planning and outcomes assessment (2nd ed., pp. 679–724). Mahwah, NJ: Lawrence Erlbaum Associates Publishers) and OTE with the FFFK (Asendorpf, J. D., & van Aken, M. A. G. [2003]. Validity of big five personality judgments in childhood: A 9 year longitudinal study. European Journal of Personality, 17, 1–17). A three-level hierarchical linear model investigated individual- and classroom-level effects on IA score and its changes over time. The findings revealed that IA at the initial level was associated with the obsessive–compulsive symptoms of the individual and negatively related to classroom-level OTE. However, adolescents high on obsessive–compulsive symptoms in high on OTE classrooms presented higher IA scores over time. © 2015 Taylor & Francis.