Validity of Self-Report Measures of Defense Mechanisms

The Role of Defence Mechanisms in Coping with Stress in PTSD Patients

In the context of the war in Ukraine, the risk of post-traumatic stress disorders increases, which in critical cases cause the development of chronic mental illnesses and a decline in physiological functions. In connection with the emergence of a feeling of helplessness due to the inability to act effectively in a dangerous situation, various psychological defence mechanisms are formed to overcome intrapsychic conflicts. The purpose of this stud was to investigate the dominant mechanisms in individuals with post-traumatic stress disorder who had been in regions with different scenarios for the development of hostilities since the beginning of the war, using the PlutchikKellerman-Conte methodology. The information was collected from people of different age categories, types of employment, educational qualification levels, and gender who were in Kyiv, Kharkiv, and Lviv during the first two months of the full-scale war and periodically moved through the territory of Central and Western Ukraine. Cases of short-term residence abroad were also considered during the study. The results of the tension of psychological defence indicate that in individuals with post-traumatic stress disorder that stayed in different regions of Central and Western Ukraine since the beginning of the war, the projection mechanism dominated (75%), and the substitution mechanisms (12.5%) and denial mechanisms (12.5%) were equally distributed. The dominance of the projection may indicate the transfer of intrapsychic conflict to the outside. In this case, the external world is perceived by the individual as the main carrier of the threat from which they need to protect themselves. Instead, denial may indicate ignoring certain aspects of reality. Respondents who are prone to substitution use the approach of transferring repressed emotions, which can be expressed in the form of anger, fear, and hostility towards more accessible objects that are no less dangerous than those that led to frustrating experiences. It was determined that the total sample tension does not exceed 50%. This may indicate the ability of patients with post-traumatic stress disorder to resolve intrapsychic conflicts that have developed at the moment. The results of the study may be of practical interest to specialists investigating the identification and generation of methods for the prevention and treatment of post-traumatic stress disorder

Investigating Correlations Between Defence Mechanisms and Pathological Personality Characteristics

INTRODUCTION

The purpose of this study was to investigate the relationship between defence mechanisms and pathological personality traits.

MATERIAL AND METHODS

We analysed 320 participants aged from 18 to 64 years (70.6% women, 87.5% university students) who completed the Dimensional Clinical Personality Inventory (IDCP) and the Defence Style Questionnaire (DSQ-40). We conducted comparisons and correlations and a regression analysis.

RESULTS

The results showed expressive differences (d>1.0) between mature, neurotic and immature defence mechanism groups, and it was observed that pathological personality traits are more typical in people who use less mature defence mechanisms (i.e., neurotic and immature), which comprises marked personality profiles for each group, according to the IDCP. We also found correlations between some of the 40 specific mechanisms of the DSQ-40 and the 12 dimensions of pathological personality traits from the IDCP (r ≥ 0.30 to r ≤ 0.43), partially supported by the literature. In addition, we used regression analysis to verify the potential of the IDCP dimension clusters (related to personality disorders) to predict defence mechanisms, revealing some minimally expressive predictive values (between 20% and 35%).

DISCUSSION

The results indicate that those who tend to use immature defence mechanisms are also those most likely to present pathological personality traits.

CONCLUSIONS

The findings indicate the importance of investigating these correlations as a possible improvement to clinical assessment and intervention.

A study of the face validity of the 40 item version of the Defense Style Questionnaire (DSQ-40)

There are few studies examining the face validity of the 40-item version of the Defense Style Questionnaire (DSQ-40). Moreover, the existing studies have provided conflicting results. The present study provides an in-depth examination of the face validity of the DSQ-40. Eight clinicians independently attributed each item of the DSQ-40 to a defense mechanism. The defense mechanisms listed in the DSM-IV Defensive Functioning Scale and their definitions were provided as a guide, along with the definition of those defense mechanisms investigated by the DSQ that are not included. It was further specified that the raters could attribute the items to defense mechanisms other than those listed or coping mechanisms. Twelve items out of 40 (30%) were attributed to the defense mechanisms they were supposed to investigate by fewer than four out of the eight raters. This result suggests that a substantial part of the DSQ-40 is lacking in face validity.

Long-term changes in defense style among patients recovering from major depression

The long-term stability of ego defenses was examined in a group of 68 patients with major depression being treated in a rural private psychiatric practice. Current symptomatology and dispositional characteristics, including defense style (40-item Defense Style Questionnaire), were assessed pretreatment and at approximately 6 months and 2 years after treatment commenced. Age- and gender-matched comparison groups were also selected from two community-based studies that utilized similar instruments and time periods. The major depression group reported significantly lower usage of mature defenses initially, but with recovery they moved progressively toward the range of mature defenses displayed by the nonpatient comparison group. Neurotic defenses were relatively stable throughout the study, as were immature defenses during the first 6 months. Comparisons between patients who discontinued treatment (N = 24) and those who remained in treatment (N = 33) revealed similar rates of symptom reduction; however, the latter group reported continuing reductions in their use of immature defenses, to a level below that of the nonpatient comparison group.