A Multimethod Investigation of Sex, Romantic Relationships, and Interpersonal Dependency

An individual's level of interpersonal dependency influences the way they engage with others, and researchers have achieved a comprehensive understanding of the interplay between dependency and interpersonal relationships across an array of social situations. This knowledge has improved the efficacy of medical and psychotherapeutic work with dependent clients and has informed approaches taken to reduce the societal costs of dependent personality disorder (e.g., increased risk for suicide and self-harm, perpetration of child abuse, perpetration of domestic violence, victimization by a partner, and physical illness). Relatively little research, however, has explored dependency's links to sexual activity and sexual functioning, the findings of which stand to offer knowledge valuable to sex counseling, couples therapy, sexual health, and our overall understanding of sexuality. The current study utilized a multimethod research design to explore dependency as it relates to sexual and romantic relationships and sexual activity. Multiple associations emerged between dependency, both interpersonal dependency and a healthy variant of dependency, and sexual activity. Based upon these findings and contemporary literature, an initial discussion of some of the therapeutic implications of this knowledge and suggestions for working with dependent clients are offered.

Relationship between alexithymia and dependent personality disorder: a dimensional analysis

The present study had two aims and used two different samples. The first aim was to determine if alexithymia and dependent personality disorder (DPD) are distinct or overlapping constructs. The second aim was to determine the specificity and the stability of the relationship between alexithymia and DPD. The first study used exploratory principal components analysis (PCA) in a sample of 477 non-clinical subjects who completed three questionnaires measuring alexithymia (Twenty item Toronto Alexithymia Scale, i.e. TAS-20), dependent personality disorder (Dependent Personality Questionnaire, i.e. DPQ) and depression (Beck Depression Inventory-II, i.e. BDI-II). The second study used a sample of 305 subjects consecutively admitted to an outpatient department of legal medicine. The subjects completed (at admission and 3 months later) the Structured Clinical Interview for DSM-IV, screen questionnaire (SCID-II-SQ), the TAS-20 and the BDI. Multiple regressions were done. For the first study, the PCA yielded a four-factor solution with no overlap of the significant factor loadings for the items from each scale and with the factors corresponding to their respective construct. For the second study, multiple regressions showed that only avoidant personality disorder was an independent predictor of the TAS-20 scores. Alexithymia is a construct that is distinct and separate from DPD and depression. Alexithymia is not a stable feature of DPD while it is a core feature of avoidant personality disorder.