Validation of the Inventory of Interpersonal Problems (IIP-64): a comparison of Swedish female outpatients with anorexia nervosa or bulimia nervosa and controls

Alexithymia and interpersonal problems in healthy young individuals

BACKGROUND

Alexithymia refers to a multidimensional personality trait with the facets difficulties identifying feelings (DIF), difficulties describing feelings (DDF), and externally orientated thinking (EOT). Alexithymia is a risk factor for mental and somatic disorders. Previous research with patients suffering from various disorders showed positive relationships between alexithymia and interpersonal problems. Only one study analyzed the link between alexithymic features and interpersonal difficulties in healthy individuals but yielded inconclusive findings because participants' negative affects were not controlled. A widely accepted conceptualization of interpersonal problems relies on the interpersonal circumplex, which is defined by two orthogonal dimensions, agency and communion. In the present study, we analyzed which facets of alexithymia are associated with the two interpersonal problem dimensions and the global severity of interpersonal distress, after adjusting for negative affect.

METHODS

Two-hundred healthy young individuals (100 women) participated in the study. Alexithymic features were assessed using the 20-Item Toronto Alexithymia Scale (TAS-20). Interpersonal problems were measured with the Inventory of Interpersonal Problems (IIP-D). Participants' state and trait anxiety, depressive symptoms, and verbal intelligence were also assessed.

RESULTS

All alexithymia scales were positively correlated with general interpersonal distress. Regression results suggested that the TAS-20 subscale DIF was the primary predictor of general interpersonal distress after controlling for negative affectivity. The scale DDF correlated negatively with the IIP-D dimension agency. According to our regression analysis, DDF was a predictor of (low) agency controlling for negative affects. Moreover, DDF correlated negatively with the IIP-D dimension communion. Our regression results indicate that DDF was a predictor of (low) communion independent of negative affect. Correlations between alexithymia facets and IIP-D subscales did not differ between genders.

CONCLUSIONS

Difficulties identifying feelings seem to be linked to a high level of general interpersonal distress. Difficulties in recognizing one's feelings may disrupt emotion regulation, which could heighten the general risk of interpersonal problems. Difficulties describing feelings could be a central factor contributing to interpersonal problems related to low communion as well as low agency, since emotion expression and communication are crucial in establishing experiences of social closeness and directing other people's behavior.

Interpersonal problems and recognition of facial emotions in healthy individuals

Background

Recognition of emotions in faces is important for successful social interaction. Results from previous research based on clinical samples suggest that difficulties in identifying threat-related or negative emotions can go along with interpersonal problems. The present study examined whether associations between interpersonal difficulties and emotion decoding ability can be found in healthy individuals. Our analysis was focused on two main dimensions of interpersonal problems: agency (social dominance) and communion (social closeness).

Materials and methods

We constructed an emotion recognition task with facial expressions depicting six basic emotions (happiness, surprise, anger, disgust, sadness, and fear) in frontal and profile view, which was administered to 190 healthy adults (95 women) with a mean age of 23.9 years (SD = 3.8) along with the Inventory of Interpersonal Problems, measures of negative affect and verbal intelligence. The majority of participants were university students (80%). Emotion recognition accuracy was assessed using unbiased hit rates.

Results

Negative correlations were observed between interpersonal agency and recognition of facial anger and disgust that were independent of participants' gender and negative affect. Interpersonal communion was not related to recognition of facial emotions.

Discussion

Poor identification of other people's facial signals of anger and disgust might be a factor contributing to interpersonal problems with social dominance and intrusiveness. Anger expressions signal goal obstruction and proneness to engage in conflict whereas facial disgust indicates a request to increase social distance. The interpersonal problem dimension of communion appears not to be linked to the ability to recognize emotions from facial expressions.

The self-efficacy in distress tolerance scale (SE-DT): a psychometric evaluation

BACKGROUND

Skills training is believed to be essential in dialectical behavior therapy (DBT) and is also offered as a standalone intervention. There is a need to better understand each skills module's separate contribution to treatment outcomes. Several assessment instruments are available, but none of them provides specific information about patients' perceived ability to use skills promoting distress tolerance. The aim of the present study was to develop and evaluate the psychometric properties of a Swedish adaptation of the General Self-Efficacy scale (GSE) for skills use in distress tolerance - the Self-Efficacy in Distress Tolerance scale (SE-DT).

METHODS

Cross-sectional and longitudinal data were gathered in a non-clinical (NC) community sample (n = 407) and a clinical psychiatric (CP) sample (n = 46). Participants in the NC sample were asked to complete a set of 19 self-report instruments, including the SE-DT, and 45 participants repeated the assessment after 2 weeks. The patients in the CP sample filled out a subset of eight instruments; twenty patients repeated the assessment after completing a treatment intervention including mindfulness skills and distress tolerance skills or emotion regulation skills.

RESULTS

The analyses showed that the SE-DT is unidimensional with high internal consistency (Cronbach's alpha = .92) and good test-retest reliability (intraclass correlation = .74). The SE-DT also showed good convergent and divergent validity, demonstrating positive correlations with general self-efficacy and self-compassion, and negative correlations with difficulties in emotion regulation, psychiatric symptoms, and borderline symptoms. The SE-DT showed sensitivity to change, when pre- and post-treatment assessments were compared (Cohen's d = 0.82).

DISCUSSION

This is preliminary evidence that the SE-DT has adequate to good psychometric properties, supporting the use of a total sum score. The results indicate that the SE-DT can adequately measure the construct of self-efficacy with regard to dealing with distress and emotional crises. The instrument enables continued investigation of standalone skills training and the specific contribution of distress tolerance skills to treatment outcomes in DBT. Further studies are needed to investigate whether these results are valid in other populations. In addition, the field would benefit from a common definition of distress tolerance.

Psychological Mindedness, Personality Structure, and Outcomes in Short-Term Group Analytic Psychotherapy

The present study investigated the treatment effects of focused short-term group analytic psychotherapy and examined whether outcomes were predicted by the client's psychological mindedness and personality structure as measured by the Operationalized Psychodynamic Diagnosis (OPD). Treatment foci were formulated according to the OPD for 66 student counseling clients across nine groups. Two observers independently rated client psychological mindedness and personality structure. The pre-post Cohen's d effect sizes were large on the Global Severity Index (GSI) and the Inventory of Interpersonal Problems (IIP-64) and moderate on the Social Adjustment Scale Self Report, including all 66 clients starting treatment. Psychological mindedness significantly predicted two outcomes (GSI, IIP), and personality structure predicted one outcome (GSI). These measures could be helpful when selecting clients for short-term group analytic psychotherapy. We discuss study limitations and implications for future research and practice.