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Body appreciation is considered a key dimension of positive body image. Tylka and Wood-Barcalow (2015) developed the Body Appreciation Scale-2 (BAS-2), a psychometrically sound measure to assess body appreciation. The present study examines various psychometric properties (i.e. factor structure, sex-based measurement invariance, and construct validity) of an Italian translation of the BAS-2 in a community sample (N = 601; F = 50.6 %; Mage = 25.72; SD = 4.81). Exploratory factor analyses with a randomly selected split-half subsample (n = 300; F = 50 %) supported the one-dimensional factor structure among both sexes. Confirmatory factor analyses with a second split-half subsample (n = 301; F = 51.16 %) indicated that the one-dimensional factor structure had adequate fit after some modifications were made. BAS-2 scores achieved full invariance across sex and men reported significantly higher scores than women (d = 0.45). Further, the Italian version of the BAS-2 had good internal consistency and was positively correlated with self-esteem and life satisfaction, whereas negative associations were found with body dissatisfaction and eating disorder symptoms. Results indicated that the Italian BAS-2 has good psychometric properties.

The present study aimed to examine the link between attachment, personality traits, and suicidal ideation with consideration of the potential moderating role of age and sex. The Suicidal History Self-Rating Screening Scale, the Personality Inventory for DSM-5-Brief Form, and the Attachment Style Questionnaire were administered to 183 students. There was a significant indirect effect of need for approval on suicidal ideation via detachment. Moreover, the moderated mediation models of need for approval and preoccupation with relationships on suicidality via negative affectivity were significant in men, but not women, whereas the moderated mediation model of need for approval on suicidality via detachment was significant in women, but not men. Young men and women seem at risk for increased suicidal ideation based on specific attachment and personality characteristics, which should be considered for the development of prevention and therapeutic interventions.

This study aims to investigate whether Internet gaming disorder (IGD) and bodily dissociation vary depending on the most frequently used game genre. Seven hundred and fifteen highly engaged online players (71.5% men; mean age 29.75 ± 7.48 years) recruited in player communities completed a survey that assessed game genre, bodily dissociative experiences and IGD. The results showed significantlly higher levels of IGD among multiplayer online battle arenas (MOBA) and massively multiplayer online role-playing games players relative to first-person shooters (FPS) game players, whilst MOBA players report significantly higher bodily dissociative experiences compared to MORPG and FPS. However, we found that differences on body dissociation disappear at high levels of IGD, with problematic players showing high body disconnection, regardless of the type of game most frequently used. This suggests that high engagement in online games has the potential to disconnect a player from his body, regardless of the type of game used.

The COVID-19 pandemic and the resulting societal restrictions have had negative implications for mental health in the general population. The aims of the present longitudinal study were (i) to investigate changes in psychopathological symptoms and psychological well-being in a sample of Italian individuals surveyed at different points of the pandemic and (ii) to evaluate the potential risk and protective factors associated with the psychopathological outcomes. Self-reported data on psychiatric symptoms, and psychological well-being were collected in March 2020 (T0, the lockdown phase), in May 2020 (T1, the end of the lockdown phase), and in November 2020 (T2, the second wave of COVID-19 infection). 1258 participants (M

Background and aims In the current study we have sought to clarify the contribution of metacognitions concerning smartphone use relative to smartphone use expectancies in the relationship between well-established predisposing psychological factors and problematic smartphone use (PSU). We tested a model where psychological distress, impulsivity, and proneness to boredom predict metacognitions about smartphone use and smartphone use expectancies, which in turn predict PSU. Methods A sample of 535 participants (F = 71.2%; mean age = 27.38 ± 9.05 years) was recruited. Results The model accounted for 64% of the PSU variance and showed good fit indices (χ 2 = 16.01, df = 13, P = 0.24; RMSEA [90%CI] = 0.02 [0–0.05], CFI = 0.99; SRMR = 0.03). We found that: (i) when it comes to psychological distress and boredom proneness, negative metacognitions, and both positive and negative expectancies play a mediating role in the association with PSU, with negative metacognitions showing a dominant role; (ii) there is no overlap between positive expectancies and positive metacognitions, especially when it comes to smartphone use as a means for socializing; (iii) impulsivity did not show a significant effect on PSU Direct effects of the predictors on PSU were not found. Discussion and conclusions The current study found additional support for applying metacognitive theory to the understanding of PSU and highlight the dominant role of negative metacognitions about smartphone in predicting PSU.

As the vast majority of online videogames imply the immersion into an alternative reality where a virtual body is also involved, the current cross-sectional study aims to investigate the contribution of low body awareness (i.e. low attention to sensory cues indicating bodily state) and body dissociation (i.e. low emotional connection with one’s own body) in predicting Internet gaming disorder (IGD) symptoms, after controlling for internalizing (i.e., depression, anxiety, and stress) and externalizing symptoms (i.e., aggression). A total of 370 online-game players (73% men; mean age 29.63 ± 7.64 years) recruited in online player communities took part in the study and were given a survey that included gaming characteristics, the Depression, Anxiety and Stress Scale −21, the Aggression Questionnaire, the Body Disconnection Scale, and the Internet Gaming Disorder Scale- Short Form. A hierarchical regression analysis showed that low body awareness and high body dissociation predicted IGD scores after controlling for all the other factors. Moreover, we found an interaction effect between physical aggression and body dissociation in predicting IGD scores. On the one hand, these results provide support to previous studies that stressed the potential association between dissociative detachment (in terms of bodily disconnections) and problematic videogaming; on the other hand, the current study provides first evidence of the opportunity to focus on the integration of bodily experiences in clinical practice with people suffering from problematic gaming, as this factor might be incisively related to their aggressive and internalizing symptoms.

The Bergen Facebook Addiction Scale (BFAS) is widely used, but psychometric evidence by applying Item Response Theory (IRT) is lacking. Considering the advantages of this psychometric approach, the aim of study was to investigate the psychometric properties of the Italian version of the BFAS among adolescents and young adults. Participants were 1134 (50% males, Mean age = 20.7, SD = 3.5, range = 14–33 years) Italian high school students and undergraduates. The unidimensionality of the scale was confirmed (χ2/df = 2.8, CFI = 0.99, TLI = 0.98, and RMSEA = 0.04 [C.I. = 0.02–0.06]) and IRT analysis showed that the scale assesses medium and high levels of the trait, and that it is useful in order to discriminate different levels of Problematic Facebook use (PFU) within this range of trait, in which the scale is sufficiently informative. The relationships of BFAS θ scores with theoretically related constructs provided support to the validity of the scale. In accordance with previous studies, BFAS scores were positively correlated with Problematic Internet use and problematic Social Network use, negatively correlated with self-esteem, and positively related to loneliness. The Differential Item Functioning (DIF) analysis showed that BFAS is invariant across gender, and only one item had uniform and small-in-size DIF. Additionally, we tested age invariance. Since only 17% of the BFAS items were non-invariant, we determined that the BFAS exhibited minor non-invariance as a whole. An analysis of the adequacy of the polythetic and monothetic criteria to define the range of the trait indicative of problematic use was also conducted. Overall, this study offers evidence that BFAS is a valuable and useful scale for measuring high levels of PFU among Italian adolescents and young adults.

BACKGROUND AND PURPOSE: Imaging is fundamental to assessing the acoustic pathway in infants with congenital deafness. We describe our depiction of the membranous labyrinth in infants using the heavily T2-weighted 3D FLAIR sequence without a contrast agent. MATERIALS AND METHODS: We retrospectively reviewed 10 infants (20 ears) (median term equivalent age: 2 weeks; IQR: 1–5 weeks) who had undergone brain MR imaging including a noncontrast heavily T2-weighted 3D FLAIR scan of the temporal bone. For each ear, 3 observers analyzed, in consensus, the saccule, the utricle, and the 3 ampullae, assessing the visibility (score 0, not appreciable; score 1, visible without well-defined boundaries; score 2, visible with well-defined boundaries) and morphology (“expected” or “unexpected” compared with adults). The heavily T2-weighted 3D FLAIR sequence was scored for overall quality (score 0, inadequate; score 1, adequate but with the presence of image degradation; score 2, adequate). RESULTS: Six (60%) MR examinations were considered adequate (score 1 or 2). The saccule was visible in 10 ears (83.3%) with an expected morphology in 9 ears (90%). In 1 ear of an infant with congenital deafness, the saccule showed an unexpected morphology. The utricle was visible as expected in 12 ears (100%). The lateral ampulla was visible in 5 ears (41.6%), the superior ampulla was visible in 6 ears (50.0%), and the posterior ampulla was visible in 6 ears (50.0%), always with expected morphology (100%). CONCLUSIONS: MR imaging can depict the membranous labyrinth in infants using heavily T2-weighted 3D FLAIR without an injected contrast agent, but the sequence acquisition time reduces its feasibility in infants undergoing MR studies during natural sleep.

Purpose To evaluate if baseline ADC from DWI sequences could predict response to treatment in patients with sacral chordoma not suitable for surgery treated with carbon ion radiotherapy (CIRT) alone compared with volume changes. Methods Fifty-nine patients with sacral chordoma not suitable for surgery underwent one cycle of CIRT alone and a minimum of 12-months follow-up. All patients underwent MRI before treatment (baseline), every three months in the first two years after treatment, and every six months afterwards. For each MRI, lesion volume was obtained and median, kurtosis, and skewness ADC were analyzed within the whole lesion volume. Volume changes between baseline and the last available follow-up were used to divide patients with partial response, progression of disease and stable disease (PR, PD, and SD). Results Ten patients were excluded since DWI sequences from baseline MRI were not available. ADC maps obtained from baseline DWI examinations of 50 lesions in the remaining 49 patients were considered. Seven lesions were categorized as PD, 30 PR, and 13 SD. PD showed significantly higher median ADC values at baseline (p = 0.003) compared with both PR and SD (1665vs1253vs1263 *10−6 mm²/s), and more negative skewness values (-0.26vs0.26vs0.08), although not significantly different (p = 0.16). Conclusions Preliminary results suggest that baseline ADC could predict response to treatment with CIRT, particularly to detect potential non-responder patients.

The present study aimed to investigate: a) the contribution of the fear of missing out (FoMO) in explaining social media problematic use taking also into account the fear of being negatively evaluated and the perception of low self-presentational skills; b) the mediating role of positive metacognitions about social media use in the relationship between FoMO and social media problematic use. A sample of 579 undergraduates was recruited (54.6% F; mean age = 22.39 ± 2.82). Among females, the assessed structural model produced good fit to the data [χ2 = 101.11, df = 52, p < .001; RMSEA = 0.05 (90% C.I. =0.04-0.07), CFI = 0.98, SRMR = 0.05]. FoMO and self-presentational skills were both directly and indirectly associated with social media problematic use through the mediation of positive metacognitions. Fear of negative evaluation was not associated with social media problematic use. Among males, FoMO had both a direct and an indirect effect on social media problematic use mediated by positive metacognitions. The fear of negative evaluation and self-presentational skills were only indirectly associated with social media problematic use through positive metacognitions. The assessed structural model produced good fit to the data [χ2 = 98.02, df = 55, p < .001; RMSEA = 0.05 (90% C.I. =0.04-0.07), CFI = 0.98, SRMR = 0.07]. The present study confirmed the role of FoMO with respect to social media problematic use and highlighted for the first time the mediating role of positive metacognitions in this relationship.

This study investigated whether abstaining from Instagram (Ig) affects subjective well-being among young men and women. By comparing an intervention group (40 participants who take a break from Ig for a week) with a control group (40 participants who kept using Ig), we found that women who quitted Ig reported significantly higher levels of life satisfaction and positive affect than women who kept using it. Whereas positive affect increment depended on social appearance comparison, life satisfaction rose independent of the tendency to compare one's own appearance with others. It is possible that users who are no longer exposed to direct evaluative feedback about their images on Ig-be it related to their appearance, habits, or opinions-can witness an increase in their global satisfaction levels. No significant effects were found among men.

Extreme perfectionism has been linked with distress and dysfunction. This association is reflected by the recent development of the Big Three Perfectionism Scale (BTPS), which has superordinate trait-based scales that assess 3 broad elements-rigid, self-critical, and narcissistic perfectionism. We examined psychometric features of the BTPS as well as the links between the BTPS and indexes of distress. A sample of 602 undergraduates completed the BTPS, the Perfectionistic Self-Presentation Scale, the Perfectionism Cognitions Inventory, and measures of social anxiety and depression. Support was obtained for the psychometric qualities of the BTPS. All 3 superordinate trait factors were associated with social anxiety and depression. Analyses also established that rigid perfectionism, self-critical perfectionism, and narcissistic perfectionism are associated with perfectionistic cognitions and perfectionistic self-presentation. In addition, the results of a series of regression analyses established that perfectionistic self-presentation and perfectionistic cognitions accounted for significant unique variance in distress beyond the variance attributable to rigid, narcissistic, and self-critical perfectionism. Overall, our results suggest that the BTPS has significant promise as a predictor of various forms of dysfunction, but the cognitive and self-presentational aspects of the perfectionism construct are also uniquely relevant and not redundant with the BTPS superordinate trait factors.

This study builds on previous findings regarding emotional intelligence among narcissists by considering the maladaptive aspects of emotional manipulation and distinguishing between grandiose and vulnerable narcissism. Trait-emotional intelligence and emotional manipulation capabilities of grandiose narcissists, vulnerable narcissists, and non-narcissists were compared. A convenience sample of 584 undergraduates from the University of Florence (Italy) with a mean age of 22.61 (

Research has shown that metacognitions are associated with addictive behaviors. This study aimed to evaluate the psychometric properties (i.e., factor structure, reliability, and predictive validity) of the Persian Metacognitions about Smartphone Use Questionnaire (Persian MSUQ). A community sample of 618 participants (63.6% female, mean age = 27.31 ± 8.95 years; age range: 15–67 years) was recruited in Iran. The results of exploratory factor analysis revealed that the Persian MSUQ had a three-factor structure, similar to the parent version, named positive metacognitions about emotional and cognitive regulation, negative metacognitions about uncontrollability and cognitive harm, and positive metacognitions about social advantages. The confirmatory factor analysis indicated that the three-factor structure of the Persian MSUQ had appropriate fit. Cronbach's alphas for the three factors were 0.89, 0.88, and 0.70, respectively. Test-retest coefficients over a 6-week interval showed good reliability for the Persian MSUQ total score (ICC = 0.81; 95% CI: 0.72–0.87). Regression analyses showed that metacognitions about smartphone use predicted problematic smartphone use independently of anxiety and depression. The findings suggest that the Persian MSUQ has appropriate psychometric properties in the Iranian context.

Fear of missing out (FoMO) has been linked to problematic social media use and negative health outcomes among adolescents and emerging adults. The 10-item Fear of Missing Out Scale (FoMO) is the most used instrument to measure FoMO levels and, for this reason, it seems relevant to evaluate its psychometric properties across various cultures. In Study 1, exploratory factor analysis was conducted on the scale items using a sample of 436 college students [F = 51.1%; M (SD) = 22.13 (2.78) years old]. In Study 2, confirmatory factor analysis was conducted in order to determine whether the results of Study 1 could be confirmed with another sample of college students [n = 239; F = 61.1%; M (SD) = 23.02(2.64) years old] and adolescents [n = 178; M = 57.3%; M (SD) = 16.2 (1.48) years old]. The model was also tested for measurement invariance by sex and age (collegiate versus high school students). Full scalar invariance of the FoMO across sex and age was supported and adequate internal consistency was found. Convergent validity was also demonstrated. As a result, we concluded that the FoMO might be used in clinical settings as a means of screening people who show potentially high behavioral engagement with social media. The FoMO can also help identify specific maladaptive cognitions and ruminative thoughts that maintain FoMO.

Building upon previous research establishing a positive association between grandiose and vulnerable narcissism and problematic social networking use, the present study tests a model that explains how grandiose and vulnerable narcissists might develop Facebook (Fb) addiction symptoms through the need for admiration and the need to belong. A sample of 535 undergraduates (50.08% F; mean age 22.70 ± 2.76 years) completed measures of grandiose narcissism, vulnerable narcissism, Fb addiction symptoms, and two brief scales measuring the need for admiration and the need to belong. Results from structural equation modelling show that the association between grandiose narcissism and Fb addiction levels was completely mediated by the need for admiration and the need to belong. On the other hand, vulnerable narcissism was not found to be associated either directly or indirectly with Fb addiction levels. The variables in the model accounted for 30% of the variance in Fb addiction levels. The present study represents a step toward a better understanding of the psychological mechanisms underlying the link between grandiose narcissism and problematic Fb use.

Background The present study developed and tested a model that explains how people who believe that others have unrealistically high standards and exert pressure on them to be perfect (that is, people high in socially prescribed perfectionism) develop a problematic use of internet communicative services (GPIU). Following the perfectionism social disconnection model and previous evidence about the role that the online environment might play in the development of problematic internet use, low reported social support and the fear of negative evaluations in face to face interactions were hypothesized to mediate the association between socially prescribed perfectionism and GPIU. Methods A sample of 465 undergraduate students was recruited (240 F; mean age 21.91 + 2.23 years), and the hypotheses were tested through structural equation modeling separately for men and women. Results Among men, the association between SPP and GPIU was fully mediated by the fear of being negatively evaluated and the perception of low social support. For women, we found a partially mediated model in which SPP affected GPIU indirectly through the fear of negative evaluations. The presence of a direct effect of SPP on GPIU was also found. Moreover, perceived social support was not found to be a significant mediator among women. Conclusions The findings suggest that problematic use of internet communicative services might be, at least in part, a defensive response to extreme social evaluation pressures.

Scholars have recently taken an interest in the connection between narcissism and Internet use, especially among users who frequent social networking sites (SNSs). Conversely, the association between narcissism and problematic use of SNSs (i.e., unregulated use that leads to negative outcomes) has been scarcely investigated. This study addresses this gap by comparing the mean levels of problematic use of SNSs among grandiose narcissists, vulnerable narcissists, and non-narcissists. A sample of 535 students completed the 16-item Narcissistic Personality Inventory, the Hypersensitive Narcissism Scale, and the Generalized Problematic Internet Use Scale-2 (GPIUS2). Vulnerable narcissists reported (a) significant higher levels on all GPIUS2 subscales and total scores than non-narcissists and (b) a stronger preference for online social interactions and higher overall levels of problematic use of SNSs than grandiose narcissists. Conversely, no significant differences were found between grandiose narcissists and non-narcissists. This study suggests that vulnerable narcissism may contribute more to problematic use of SNSs than grandiose narcissism.

The present study hypothesized that two specific positive metacognitions about Internet use (i.e. the belief that Internet use is useful in regulating negative emotions and the belief that it affords greater controllability) mediate the association between emotional dysregulation and problematic Internet use (PIU). A total of 293 undergraduate university students (male 48.4%; mean age=21.73+2.17) participated in the study. The assessed structural model produced adequate fit to the data (χ(2)=203.76; df=81; p.001; RMSEA [90% CI]=.07 [.06-.08]; CFI=.95; SRMR=.08). Variables accounted for 46% of the variance in PIU levels. A partial mediation model in which emotional dysregulation predicted PIU levels through positive metacognitions associated with Internet use was found. The presence of a direct relationship between emotional dysregulation and PIU was also detected. Moreover, the study found that emotional dysregulation might drive symptoms of PIU to a greater extent than high negative emotionality.

Davis (2001) introduced a cognitive-behavioral theory of generalized pathological internet use (GPIU) that attempts to model the etiology, development, and outcomes associated with PIU. According to this model, pre-existing psychosocial problems (depression, loneliness, or low levels of social support) predispose an individual to GPIU cognitions, behaviors, and negative outcomes. An exploratory study intended to investigate whether GPIU is associated with psychosocial health (loneliness, depression, self-esteem, and shyness), also taking account of types of internet services used, was conducted in a sample of Italian undergraduate students. A cross-sectional and descriptive correlational design was used. The participants were 157 undergraduate students (34 male and 123 female) enrolled at The University of Florence. The results revealed a stronger correlation between the frequency of use of communicative services (as opposed to leisure or informational services) and GPIU levels. Among services, the most significant predictor of GPIU was the frequency of use of chat rooms and "adult" websites. All psychosocial health variables were correlated with GPIU, with the exception of shyness; however, general loneliness was the only significant predictor of GPIU. Depression and self-esteem were not significant predictors of GPIU. These results are consistent with the assumption that GPIU is related to the social aspect of the internet (e.g., online chatting) and arises from the unique communicative environment found online. In accordance with recent studies, social wellbeing (i.e. loneliness) seems to play a greater role than psychological health in deriving negative effects from internet use.

Previous studies on problematic Internet use have focused almost exclusively on the fact that presence of negative functioning, such as social anxiety, depressive symptoms, or loneliness, represents a risk factor for unhealthy use of the web. For this reason the aim of the present study was to investigate the association between psychological well-being dimensions and problematic use of Internet communicative services. In the current study 495 undergraduate students were recruited. The Italian adaptations of the Psychological Well-being Scales and the Generalized Problematic Internet Use Scale 2 (GPIUS2) were used to assess psychological well-being dimensions and generalized problematic Internet use, respectively. Psychological well-being dimensions explained a significant portion of variance for the GPIUS2 total score levels, after controlling for sex, age, and occupational status. The levels of Autonomy, Environmental Mastery, and Positive Relations with Others acted as significant negative predictors of the tendency to use the web for regulating negative feelings, compulsive use of the web, and the negative outcomes that can arise as a result. The overall findings of the present study provide preliminary evidence that low psychological well-being is associated with problematic use of Internet communicative services.

Since the diffusion of Internet addiction has emerged in several cultural contexts, it seems relevant to study the properties of the Internet Addiction Test (IAT)-the most widely used screening instrument-across various cultures. In Italy, only one study has examined the IAT factor validity, and a comprehensive investigation of its psychometric characteristics is so far lacking. The purpose of this study was to perform a psychometric analysis of the Italian IAT. A total of 840 students (Mage=18.65 years, SD=3.85 years; 59% female) were recruited. Pertaining to scale dimensionality, the best-fit measurement model includes two factors: "Emotional and cognitive preoccupations with the Internet and social consequences" and "Loss of control and interference with daily duties" (χ(2)/df=3.38; comparative fit index=0.88; Tucker-Lewis Index=0.87; root mean square error of approximation=0.07), which together explained 45.59% of the variance. Internal consistency Cronbach's alpha values ranged from 0.83 to 0.86. Convergent validity was demonstrated, with significant correlations between IAT and Generalized Problematic Internet Use Scale 2 scores. The Italian version of the IAT was found to have good psychometric properties and a two-factorial structure. Identification of the IAT dimensions may help to define the construct better and develop intervention strategies.

The effect of pulmonary rehabilitation (PR) on the EuroQol Group's 5-dimension questionnaire (EQ-5D) in COPD has been poorly investigated. In addition, conflicting results were reported about the visual analog scale component of EQ-5D (EQ-VAS). The purpose of this study was to evaluate the responsiveness of EQ-VAS to PR and its relationship with clinical and functional parameters in subjects with COPD, as well as to define the minimal clinically important difference (MCID) estimate for the EQ-VAS after PR.A total of 468 in-patients with stable moderate-to-severe COPD, allocated to a 3-wk PR program, were retrospectively evaluated. EQ-VAS was assessed before and after PR, and its relationship with baseline pulmonary function, changes in 6-min walk test, and baseline, and transitional dyspnea index (BDI/TDI) after PR were evaluated. Using an anchor-based approach and receiver operating characteristic curves, the EQ-VAS change cutoff that identified subjects achieving the known MCID for TDI after PR was identified.Four hundred and thirty-nine subjects (94%, mean FEV1 55.3% predicted) completed pre- and post-PR EQ-VAS scores. After PR, EQ-VAS increased from 58 ± 17 to 72 ± 15 (ΔEQ-VAS 14 ± 12, P.001). ΔEQ-VAS was negatively related to baseline FEV1 (r = -0.32, P.001) and positively to TDI (r = 0.50, P.001) and 6-min walk distance (r = 0.46, P.001) changes. Receiver operating characteristic curves identified an EQ-VAS change cutoff of 8 as the best discriminating value to identify the MCID for TDI (0.78 sensitivity and 0.81 specificity; area under curve: 0.845, P.001).Our study shows that, in in-patients with stable moderate-to-severe COPD, EQ-VAS is a valid and reliable tool to assess the responsiveness to PR, with an estimated MCID of 8 points. The EQ-VAS can be a practical alternative to more time-consuming measures of health-related quality of life.

The 15-item Generalized Problematic Internet Use Scale 2 (GPIUS2) is one of the few theory-driven instruments to measure problematic Internet use (PIU). Since PIU has emerged in several cultural contexts, it seems relevant to evaluate the psychometric properties of the scale across various cultures. The aim of the present study was to test the psychometric properties (i.e., dimensionality, reliability, and validity) of the Italian version of the GPIUS2. The sample consisted of 371 participants (128 males and 243 females), and their age ranged from 14 to 33 years (M=18.07 years, SD=5.58). The GPIUS2 and the Internet Addiction Test (IAT) were administered individually in both high school and college classes. With regard to scale dimensionality, the best-fit measurement model includes four first-order factors: preference for online social interaction, mood regulation, deficient self-regulation, and negative outcomes (Satorra-Bentler scaled chi-square [S-Bχ(2)]/df=2.27; comparative fit index [CFI]=0.94; Tucker-Lewis index [TLI]=0.93; root mean square error of approximation [RMSEA]=0.05). With regard to reliability, internal-consistency Cronbach's alpha ranged from 0.78 to 0.89. Convergent validity is demonstrated with significant correlations between GPIUS2 (total score and all the subscale scores) and IAT score. Results showed that GPIUS2 scores significantly discriminated between high school and undergraduate students. The overall findings of the present study provide evidence that the Italian version of the GPIUS2 appears to be an adequate measure of generalized PIU cognitions, behaviors, and outcomes. Suggestions for further research are provided.

Introduction. Conflicting results have been so far reported about baseline lung function, as predicting factor of pulmonary rehabilitation (PR) efficacy. Aim. To ascertain whether or not baseline lung function could predict a benefit in terms of a significant change in 6-min walk test (6MWT) after PR. Methods. Seventy-five stable moderate-to-severe COPD inpatients with comorbidities (complex COPD), allocated to a three-week PR program, were retrospectively evaluated. Pulmonary function, 6MWT, dyspnea (BDI/TDI), and quality of life (EQ-VAS) were assessed before and after PR program. The patients were divided into two groups depending on the change in 6MWT (responders 30 m and nonresponders 30 m). Logistic regression analysis was used. Results. After PR, 6MWT performance all outcome measures significantly improved (). Compared to nonresponders (), the responders () had lower values in baseline lung function (). Logistic regression analysis showed that FEV1 50% pred and TL, CO 50% pred were independent predictors of PR efficacy. Conclusions. Our study shows that in stable moderate-to-severe complex COPD inpatients, baseline lung function may predict the response to PR in terms of 6MWT. We also found that complex COPD patients with poor lung function get more benefit from PR.

There is a general consensus that Internet addiction (IA) is mainly related to social aspects of the Web, especially among adolescents. The empirical link between poor social skills and IA is well documented; however, theoretical explanations for this relationship are less developed. One possibility is that people with poor social skills are especially prone to develop a preference for online social interaction (POSI), which, in turn, predicts problematic usage. This hypothesis has been tested for loneliness and social anxiety, but not for self-esteem (SE; one of the main antecedents of IA). Furthermore, the mediating role of the perceived relevance of some Internet features (e.g., anonymity) in the relationship between SE and POSI has never been investigated. A cross-sectional study was conducted with 257 adolescents. Using mediation analyses, we found evidence among females for the mediating role of (a) POSI in the relationship between SE and IA, and (b) the subjective relevance of some Internet features in the association between SE and POSI. No significant effects were found for males.