Karol Lewczuk

Dr. Karol Lewczuk

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

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

Representative Publications

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6 December 2019 in The Journal of Sexual Medicine
Verified
Journal Article
Open access
KLKarol Lewczuk
Karol Lewczuk
AGAgnieszka Glica
Agnieszka Glica
INIwona Nowakowska
Iwona Nowakowska
MGMateusz Gola
Mateusz Gola
JGJoshua B. Grubbs
Joshua B. Grubbs
Introduction: To date, multiple models of problematic pornography use have been proposed, but attempts to validate them have been scarce. Aim: In our study, we aimed to evaluate the Pornography Problems due to Moral Incongruence model proposing that self-appraisals of pornography addiction stem from (i) general dysregulation, (ii) habits of use, and (iii) moral incongruence between internalized norms and behavior. We investigated whether the model can be used to adequately explain the self-perceptions of addiction to pornography (model 1) and a broader phenomenon of problematic pornography use (model 2). Methods: An online, nationally representative study was conducted on a sample of 1036 Polish adult participants, of whom, 880 declared a lifetime history of viewing pornography. Main Outcome Measure: The outcomes were self-perceived pornography addiction, problematic pornography use, avoidant coping, frequency of pornography use, religiosity, moral disapproval of pornography, and related variables. Results: Our results indicated that avoidant coping (an indicator of general dysregulation), frequency of pornography use (indicator of habits of use), and the distress connected with incongruence between own sexual behavior and internalized norms, attitudes and beliefs positively contributed to self-perceived addiction (model 1) as well as problematic pornography use (model 2). This broadly confirms the basic shape of the PPMI model. There were, however, notable differences between the models. Moral incongruence related distress was only weakly related to self-perceived addiction (β = 0.15, P < .001), with a stronger relation for problematic pornography use (β = 0.31, P < .001). When controlling for other factors, religiosity weakly predicted problematic pornography use (β = 0.13, P < .001), but not self-perceived addiction to pornography (β = 0.03, P = .368). Frequency of pornography use was the strongest predictor of both self-perceived addiction (β = 0.52, P < .001) and problematic pornography use (β = 0.43, P < .001). Clinical Implications: Factors proposed within the PPMI model are distinctly relevant intervention targets, and they should be considered in the process of diagnosis and treatment. Strengths & Limitations: The presented study is the first to evaluate PPMI model. Its main limitation is that it has a cross-sectional design. Conclusion: The PPMI model is a promising framework for investigating the factors related to self-perceived addiction and problematic pornography use. Despite the differences between the models and in the strength of specific predictors, (i) dysregulation, (ii) habits of use, and (iii) moral incongruence all uniquely contribute to self-perceived addiction and problematic pornography use.

22 June 2023 in Journal of Behavioral Addictions
Verified
Journal Article
Open access
PDF file
BBBeáta Bőthe
Beáta Bőthe
MKMónika Koós
Mónika Koós
LNLéna Nagy
Léna Nagy
SKShane W Kraus
Shane W Kraus
ZDZsolt Demetrovics
Zsolt Demetrovics
MVMarie-Pier Vaillancourt-Morel
Marie-Pier Vaillancourt-Morel
Background and aims: Despite its inclusion in the 11th revision of the International Classification of Diseases, there is a virtual paucity of high-quality scientific evidence about compulsive sexual behavior disorder (CSBD), especially in underrepresented and underserved populations. Therefore, we comprehensively examined CSBD across 42 countries, genders, and sexual orientations, and validated the original (CSBD-19) and short (CSBD-7) versions of the Compulsive Sexual Behavior Disorder Scale to provide standardized, state-of-the-art screening tools for research and clinical practice.Method: Using data from the International Sex Survey (N = 82,243; Mage = 32.39 years, SD = 12.52), we evaluated the psychometric properties of the CSBD-19 and CSBD-7 and compared CSBD across 42 countries, three genders, eight sexual orientations, and individuals with low vs. high risk of experiencing CSBD.Results: A total of 4.8% of the participants were at high risk of experiencing CSBD. Country- and gender-based differences were observed, while no sexual-orientation-based differences were present in CSBD levels. Only 14% of individuals with CSBD have ever sought treatment for this disorder, with an additional 33% not having sought treatment because of various reasons. Both versions of the scale demonstrated excellent validity and reliability.Discussion and conclusions: This study contributes to a better understanding of CSBD in underrepresented and underserved populations and facilitates its identification in diverse populations by providing freely accessible ICD-11-based screening tools in 26 languages. The findings may also serve as a crucial building block to stimulate research into evidence-based, culturally sensitive prevention and intervention strategies for CSBD that are currently missing from the literature.

1 April 2020 in Journal of Abnormal Psychology
Verified
Journal Article
Closed access
JGJoshua B. Grubbs
Joshua B. Grubbs
SKShane W Kraus
Shane W Kraus
SPSam Perry
Sam Perry
KLKarol Lewczuk
Karol Lewczuk
MGMateusz Gola
Mateusz Gola
Despite controversies about the diagnosis, the World Health Organization recently elected to include compulsive sexual behavior disorder in the 11th edition of the International Classification of Diseases. Both recent and remote works have suggested that various cultural factors such as personal religiousness and morality can influence both the experience and expression of compulsive sexual behaviors. Because prior works have indicated that pornography use is likely to be the most common expression of compulsive sexual behavior, the present work sought to examine whether moral incongruence about pornography use may account for a substantive part of self-reports of compulsive sexual behavior. In 2 studies involving 4 samples, the present work tested the hypothesis that moral incongruence would positively predict self-reported compulsivity in pornography use. In Study 1, across 3 samples (Sample 1, N = 467; Sample 2, N = 739; Sample 3, N = 1,461), including 2 matched to U.S. nationally representative norms (Samples 2 and 3), results indicated that moral incongruence was a substantive and robust predictor of self-reported compulsivity. In Study 2 (baseline N = 850), parallel process latent growth curve analyses over the course of 1 year revealed that the trajectories of pornography use, self-reported compulsivity, and moral disapproval of such use covaried together over time. Collectively, these results underscore the contention that personal morality may influence individuals' self-perceptions of their sexual behaviors, which, in turn, may complicate efforts to accurately diagnose compulsive sexual behavior disorder. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


30 March 2023 in Journal of Behavioral Addictions
Verified
Journal Article
Open access
PDF file
JGJoshua B. Grubbs
Joshua B. Grubbs
RRRory C. Reid
Rory C. Reid
BBBeáta Bőthe
Beáta Bőthe
ZDZsolt Demetrovics
Zsolt Demetrovics
ECEli Coleman
Eli Coleman
SKShane W Kraus
Shane W Kraus
Background and aims: The World Health Organization's International Classification of Diseases (ICD-11) includes Compulsive Sexual Behavior Disorder (CSBD), a new diagnosis that is both controversial and groundbreaking, as it is the first diagnosis to codify a disorder related to excessive, compulsive, and out-of-control sexual behavior. The inclusion of this novel diagnosis demonstrates a clear need for valid assessments of this disorder that may be quickly administered in both clinical and research settings.Design: The present work details the development of the Compulsive Sexual Behavior Disorder Diagnostic Inventory (CSBD-DI) across seven samples, four languages, and five countries.Setting: In the first study, data were collected in community samples drawn from Malaysia (N = 375), the U.S. (N = 877), Hungary (N = 7,279), and Germany (N = 449). In the second study, data were collected from nationally representative samples in the U.S. (N = 1,601), Poland (N = 1,036), and Hungary (N = 473).Findings: Across both studies and all samples, results revealed strong psychometric qualities for the 7-item CSBD-DI, demonstrating evidence of validity via correlations with key behavioral indicators and longer measures of compulsive sexual behavior. Analyses from nationally representative samples revealed residual metric invariance across languages, scalar invariance across gender, strong evidence of validity, and utility in classifying individuals who self-identified as having problematic and excessive sexual behavior, as evidenced by ROC analyses revealing suitable cutoffs for a screening instrument.Conclusion: Collectively, these findings demonstrate the cross-cultural utility of the CSBD-DI as a novel measure for CSBD and provide a brief, easily administrable instrument for screening for this novel disorder.

27 December 2022 in Journal of Behavioral Addictions
Verified
Journal Article
Open access
PDF file
KLKarol Lewczuk
Karol Lewczuk
MWMagdalena Wizła
Magdalena Wizła
AGAgnieszka Glica
Agnieszka Glica
Marc PotenzaMarc Potenza
Marc Potenza
Michal Lew-StarowiczMichal Lew-Starowicz
Michal Lew-Starowicz
SKShane W Kraus
Shane W Kraus
Background: The addiction model of compulsive sexual behavior disorder (CSBD) and problematic pornography use (PPU) predicts the presence of withdrawal symptoms and increased tolerance for sexual stimuli in the disorder phenotype. However, clear empirical evidence supporting this claim has largely been lacking.Methods: In the preregistered, nationally representative survey (n = 1,541, 51.2% women, age: M = 42.99, SD = 14.38), we investigated the role of self-reported withdrawal symptoms and tolerance with respect to CSBD and PPU severity.Results: Both withdrawal and tolerance were significantly associated with the severities of CSBD (β = 0.34; P < 0.001 and β = 0.38; P < 0.001, respectively) and PPU (β = 0.24; P < 0.001 and β = 0.27; P < 0.001, respectively). Of the 21 withdrawal symptom types investigated, the most often reported symptoms were frequent sexual thoughts that were difficult to stop (for participants with CSBD: 65.2% and with PPU: 43.3%), increased overall arousal (37.9%; 29.2%), difficult to control level of sexual desire (57.6%; 31.0%), irritability (37.9%; 25.4%), frequent mood changes (33.3%; 22.6%), and sleep problems (36.4%; 24.5%).Conclusions: Changes related to mood and general arousal noted in the current study were similar to the cluster of symptoms in a withdrawal syndrome proposed for gambling disorder and internet gaming disorder in DSM-5. The study provides preliminary evidence on an understudied topic, and present findings can have significant implications for understanding the etiology and classification of CSBD and PPU. Simultaneously, drawing conclusions about clinical importance, diagnostic utility and detailed characteristics of withdrawal symptoms and tolerance as a part of CSBD and PPU, as well as other behavioral addictions, requires further research efforts.