Table 4.
Relationships between RDSQ-29 and the severity of the assessed addictive behaviors.
| Assessment tools | RDSQ-29 | SMDS | RCBS-R Obsessive-compulsive buying | RCBS-R Impulsive buying | PGSI | IGDS9-SF | |
|---|---|---|---|---|---|---|---|
| RDSQ-29 (Reward Deficiency Syndrome Questionnaire) | − | ||||||
| SMDS (Social Media Disorder Scale) | 0.123** | − | |||||
| RCBS-R (Richmond Compulsive Buying Scale Revised) | Obsessive-compulsive buying | 0.118** | 0.330** | − | |||
| Impulsive buying | 0.097* | 0.341** | 0.724** | − | |||
| PGSI (Problem Gambling Severity Index) | 0.148** | 0.364** | 0.384** | 0.278** | − | ||
| IGDS9-SF (Internet Gaming Disorder Scale-Short Form) | 0.237** | 0.387** | 0.282** | 0.177** | 0.537** |
Notes. Pearson correlation values are presented in the cells (*p < 0.05; **p < 0.001).