Pornography use will be measure with Brief Pornography Screener (BPS) (Kraus et al., 2019), a 5-item, one-dimensional scale. All questions regards to pornography use in last six month and are scored on 0 ('never') to 2 ('very often'). Minimum score is 0 and maximum is 10. Total score 4 and over indicates problematic pornography use.

Cannabis Use Disorder will be accessed with The Cannabis Use Disorders Identification Test-Revised (CUDIT-R) (Adamson et al., 2010), an eight items one-dimensional scale. Questions from 1 to 7 are scored on a 0 ('never) to 4 ('daily or almost daily') scale, and a question 8 is scored as 0 ('never'), 2 ('Yes, but not in the past 6 months') or 4 ('Yes, during the past 6 months'). A score between 8 and 11 indicates hazardous cannabis use, and scores above 12 points indicate possible cannabis use disorder.

Nicotine dependence was assessed by The Fagerstrom Test for Nicotine Dependence (FTND) (Heatherton et al., 1991). The questionnaire is composed of 6 questions, with varying choices in each question. Each option is accompanied by a number indicating its score for the questionnaire scoring system. The total score is categorized as follows: 0-2 indicates a very low dependence, 3-4 indicates a low dependence, 5-7 indicates a moderate-to-high dependence, lastly, 8+ indicates a very high dependence. In addition, a filter question inquiring if the participant is a user of nicotine products was asked before the questionnaire.

The Drug Use Disorders Identification Test (DUDIT) (Berman et al., 2005) will be used to measure self-report problematic drug use. The DUDIT is an 11-item screening instrument, the first nine items are scored on a 5-point scale (0 - 4 ), and the last two are scored on a 3-point scale (0, 2, and 4, respectively). The overall score is a sum of scores on all items, with a maximum of 44.

A cut-off of >24 has been used for indexing dependence for both sexes (Berman et al., 2005).

The Severity of Dependence Scale (SDS) (Gossop, et al., 1995) will be used to provide a self-reported measure of psychological aspects of stimulants and alcohol dependence. A five-items, one-dimensional tool has uniform scale for questions 1 - 4 from 0 ('never or almost never') to 3 ('always'). Question 5 has the same scale with different signature where 0 means 'not difficult at all' and 3 means 'impossible'. Score ranging from 0 to 15, where cut-off score depends on user's drug type, while higher values reflect higher dependence.

Compulsive Sexual Behavior Disorder will be accessed with a short version of the Compulsive Sexual Behavior Disorder Scale (CSBDS-19) (Bőthe et al., 2020), including 19 items with possible answers from 1 - strongly disagree to 4 - strongly agree. Tool has five scales: control (items 1,6,11), salience (items 2, 7, 12, relapse (items 3, 8, 13), dissatisfaction (4, 9, 14), and negative consequences (items 5,10,15, 16, 17, 18, 19). The minimum score is 19, and the maximum is 76, with a cut-off of 50 points indicating possible compulsive sexual behavior disorder.

Participants' satisfaction with their life will be assessed with The Satisfaction With Life Scale (SWLS) (Diener et al., 1985), Polish version from Jankowski (2015). SWLS is a short self-report instrument on which participants indicate their agreement to five statements about life satisfaction on a seven-point Likert scale. A maximum score of 35 can be reached, indicating a high level of life satisfaction.

Depression and anxiety will be assessed with Hospital Anxiety and Depression Scale (HADS) (Zigmond and Snaith, 1983; Karakuła et al., 2017), a 14 items two-dimensional tool. Each subscale consists of 7 items, scoring from 0 to 3. For each subscale, scores between 8 and 10 indicate mild depression/anxiety, and scores between 11 and 21 indicate depression/anxiety disorder.

Gambling disorder will be masured with South Oaks Gambling Screen (SOGS) (Lessieur, et al., 1987) with 16 items of the one-dimensional tool. The participant is asked to indicate the type of gambling he/she practices at least once in his/her life. The first three questions are qualitative: participants indicated how much money they put at risk at maximum in their life, who from their surroundings tend to gamble, and how they come back the next day to get back. The rest of the items are answered yes/no, and each 'yes' answer is rated as 1 point. The score is calculated as a sum (without questions 1,2,3,12, and 16) with 0 meaning no problem with gambling, 1-4 indicating minor issues with gambling, and scores higher than 4 indicating the risk of pathological gambling.

Gaming disorder was assessed using Internet Gaming Disorder Scale-Short-Form (IGDS9-SF), a 9- items one dimensional tool reflecting nine criteria for Internet Gaming Disorder in DSM-5 (Pontes et al., 2015), Polish version from Schivinski i in. (2018). Items are rated on 5-point scale (1='never', 2= 'rarely', 3='sometimes', 4 = 'often', 5= 'very often') and results can range from a minimum of 9 to a maximum of 45 points, with higher scores indicating higher degree of IGD and a cut-off of 32 (Qin et al., 2020).