[Questionnaire for Assessment of Mental Pain after Traumatic Events (FESSTE-30): Preliminary Standard Values and Factorial Structure].

BACKGROUND

The questionnaire for the assessment of mental pain after traumatic experiences (FESSTE-30) is the first instrument in the German language which can be used for the standardized operationalization of mental pain in research and expert review process. The primary aim of the present study was to present quality criteria of the questionnaire and its preliminary gender-specific comparative values for the German-speaking general population.

METHODS

The FESSTE-30 consists of five subscales ("Depression", "Somatization", "Dissociation", "Intrusive Memories" and "Fear"), and the total scale "Mental Pain". In addition, the attached trauma checklist enables a structured assessment of the extent of traumatic experiences. The questionnaire was investigated regarding reliability and validity based on a convenience sample of the German-speaking general population (n=1448; 86.2% female).

RESULTS

The reliabilities of the subscales and the total scale ranged between Cronbach's alpha=0.81-0.94. The internal consistency of the scale "extent of traumatic experiences" showed a Cronbach's alpha=0.65. Regarding confirmatory factor analysis, a latent bifactor structure with a general factor and five residual factors showed the following model fit: RMSEA=0.05 (90% CI: 0.05, 0.06); TLI=0.93; CFI=0.94; NFI=0.92; χ²/df=4.94.

DISCUSSION

The results indicate that FESSTE-30 is a reliable and valid self-assessment method for assessment of mental pain, suitable for application in research, treatment and expert review processes. The preliminary standard values can be used as a guideline for the evaluation of individual cases. Further investigations with clinical samples are planned.