References of "Khazaal, Yasser"
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See detailA measure of dysfunctional eating-related cognitions in people with psychotic disorders.
Khazaal, Yasser; Billieux, Joël UL; Fresard, Emmanuelle et al

in The Psychiatric quarterly (2010), 81(1), 49-56

Obesity and binge eating disorder are common in individuals with psychotic disorders. Eating and weight-related cognitions are known to influence eating behaviors. The study was designed to assess the ... [more ▼]

Obesity and binge eating disorder are common in individuals with psychotic disorders. Eating and weight-related cognitions are known to influence eating behaviors. The study was designed to assess the psychometric properties of the Mizes Anorectic Cognitions Questionnaire (MAC-R) in patients with psychotic disorders. Binge eating disorder (BED), body mass index (BMI), the MAC-R and the three factor eating questionnaire (TFEQ) were assessed in 125 patients with a diagnosis of schizophrenia or schizoaffective disorder. Whereas the MAC-R has not acceptable psychometric properties, a brief version of the MAC-R (BMAC) has good psychometrical properties and is correlated with TFEQ and BMI. Binge eating disorder is also correlated to the Rigid Weight Regulation and Fear of Weight Gain subscale. The BMAC is a useful brief measure to assess eating and weight related cognitions in people with psychotic disorders. [less ▲]

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See detailLack of inhibitory control predicts cigarette smoking dependence: evidence from a non-deprived sample of light to moderate smokers.
Billieux, Joël UL; Gay, Philippe; Rochat, Lucien et al

in Drug and alcohol dependence (2010), 112(1-2), 164-7

OBJECTIVE: To examine the relationship between prepotent inhibition capacities and cigarette dependence in a sample of non-deprived light to moderate smokers. METHODS: Fifty volunteer smokers were ... [more ▼]

OBJECTIVE: To examine the relationship between prepotent inhibition capacities and cigarette dependence in a sample of non-deprived light to moderate smokers. METHODS: Fifty volunteer smokers were screened with a laboratory go-stop paradigm, and self-reports of cigarette dependence (Fagerstrom Test for Nicotine Dependence, FTND) and cigarette craving (revised Questionnaire on Smoking Urge, QSU-12). RESULTS: Correlation and regression analyses showed that lower prepotent inhibition capacities predict higher levels of cigarette dependence when individual differences in processing speed, craving states, and age were controlled for. In addition, lower inhibition capacity is associated with a higher number of cigarettes smoked per day. CONCLUSIONS: A poor ability to inhibit prepotent responses seems to be one of the individual factors related to cigarette smoking dependence. [less ▲]

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See detailSwiss psychiatrists' beliefs and attitudes about internet addiction.
Thorens, Gabriel; Khazaal, Yasser; Billieux, Joël UL et al

in The Psychiatric quarterly (2009), 80(2), 117-23

AIMS: To investigate the beliefs and attitudes of Swiss general psychiatrists toward Internet addiction. METHODS: Ninety-fourth Swiss psychiatrists filled out a questionnaire at a conference of general ... [more ▼]

AIMS: To investigate the beliefs and attitudes of Swiss general psychiatrists toward Internet addiction. METHODS: Ninety-fourth Swiss psychiatrists filled out a questionnaire at a conference of general psychiatry assessing their views on the concept of Internet addiction, their evaluation methods and treatment procedures they use. RESULTS: A cluster analysis revealed three groups: DISBELIEVERS (N = 20) rejected the concept of Internet addiction and its importance, not considering it a real clinical problem and consequently not considering the existence of a specific treatment. The NOSOLOGY BELIEVERS (N = 66) and NOSOLOGY/TREATMENT BELIEVERS (N = 8) assumed that Internet addiction is a real problem. While NOSOLOGY/TREATMENT BELIEVERS asserted the availability of effective treatment (mainly psychological), NOSOLOGY BELIEVERS were less affirmative regarding treatment. CONCLUSION: Thought the concept of Internet addiction is largely acknowledged as a clinical reality by Swiss psychiatrists, routine screening and treatment remain uncommon, mainly due to the belief that efficient treatment is still lacking. [less ▲]

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See detailBrief DISCERN, six questions for the evaluation of evidence-based content of health-related websites.
Khazaal, Yasser; Chatton, Anne; Cochand, Sophie et al

in Patient education and counseling (2009), 77(1), 33-7

OBJECTIVE: To extract and to validate a brief version of the DISCERN which could identify mental health-related websites with good content quality. METHOD: The present study is based on the analysis of ... [more ▼]

OBJECTIVE: To extract and to validate a brief version of the DISCERN which could identify mental health-related websites with good content quality. METHOD: The present study is based on the analysis of data issued from six previous studies which used DISCERN and a standardized tool for the evaluation of content quality (evidence-based health information) of 388 mental health-related websites. After extracting the Brief DISCERN, several psychometric properties (content validity through a Factor analysis, internal consistency by the Cronbach's alpha index, predictive validity through the diagnostic tests, concurrent validity by the strength of association between the Brief DISCERN and the original DISCERN scores) were investigated to ascertain its general applicability. RESULTS: A Brief DISCERN composed of two factors and six items was extracted from the original 16 items version of the DISCERN. Cronbach's alpha coefficients were more than acceptable for the complete questionnaire (alpha=0.74) and for the two distinct domains: treatments information (alpha=0.87) and reliability (alpha=0.83). Sensibility and specificity of the Brief DISCERN cut-off score > or =16 in the detection of good content quality websites were 0.357 and 0.945, respectively. Its predictive positive and negative values were 0.98 and 0.83, respectively. A statistically significant linear correlation was found between the total scores of the Brief DISCERN and those of the original DISCERN (r=0.84 and p<0.0005). CONCLUSION: The Brief DISCERN seems to be a reliable and valid instrument able to discriminate between websites with good and poor content quality. PRACTICE IMPLICATIONS: The Brief DISCERN is a simple tool which could facilitate the identification of good information on the web by patients and general consumers. [less ▲]

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See detailFrench validation of the internet addiction test.
Khazaal, Yasser; Billieux, Joël UL; Thorens, Gabriel et al

in Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society (2008), 11(6), 703-6

The main goal of the present study is to investigate the psychometric properties of a French version of the Internet Addiction Test (IAT) and to assess its relationship with both time spent on Internet ... [more ▼]

The main goal of the present study is to investigate the psychometric properties of a French version of the Internet Addiction Test (IAT) and to assess its relationship with both time spent on Internet and online gaming. The French version of the Young's Internet Addiction Test (IAT) was administered to a sample of 246 adults. Exploratory and confirmatory analyses were carried out. We discovered that a one-factor model of the IAT has good psychometric properties and fits the data well, which is not the case of a six-factor model as found in previous studies using exploratory methods. Correlation analysis revealed positive significant relationships between IAT scores and both the daily duration of Internet use and the fact of being an online player. In addition, younger people scored higher on the IAT. The one-factor model found in this study has to be replicated in other IAT language versions. [less ▲]

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