Factor Structure, Internal Consistency and Criterion Validity of the Full-form and Short-form Versions of the Centrality of Events Scale in Young People

Spanish adaptation of the Stillbirth Stigma Scale (SSS)

The death of a baby in the perinatal period is considered a disenfranchized grief that can be a source of significant symptoms of guilt, shame, and stigma. There is a lack of validated instruments for assessing the stigma associated with perinatal grief. The aim of this study was to examine the psychometric properties (factor structure, reliability, and validity) of the Spanish version of the Stillbirth Stigma Scale (SSS) in parents who have experienced a perinatal loss. A total of 291 participants (mostly mothers) completed an online questionnaire that included the SSS and other measures. The best-fitting factor structure was a second-order model with four dimensions and adequate reliability values. In terms of validity, we found statistically significant relationships between the SSS scores and the variables of self-esteem, complicated grief, event centrality, depression, and anxiety. In conclusion, the Spanish adaptation of the SSS is deemed to have adequate psychometric properties.

A multilevel factor analysis of the short form of the Centrality of Event Scale

Introduction

The Centrality of Event Scale (CES) has frequently been used to measure the degree to which positive and negative life events are perceived central to a person's identity and life story; and previous research suggests that individuals rate their most positive memory as more central compared to their most negative one. When comparing the centrality of two (or more) memories within individuals, one needs to ensure that the CES (or its short form) is equally valid for different types of events (i.e., positive and negative) as well as on different levels of analyses (i.e., on the between-person and the within-person level), pointing to the issue of measurement invariance.

Methods

Three-hundred sixty-five adults (18-89 years of age) reported up to ten positive and up to ten negative autobiographical memories. For each memory reported, participants completed the seven-item short form of the CES, which measures three different components of centrality: Events can form a central component of identity (two items), a turning point in the life story (three items), and a reference point for everyday inferences (two items).

Results

Based on exploratory and confirmatory factor analyses, we found a two-factor structure (Self-Perception and Life-Course) to fit the data best at both levels of analyses and for both positive and negative events. Strict measurement invariance could be applied for positive and negative events at between-person level and at within-person level. The two factors, which measure the impact of an event on either a person's self-perception or their (future) life course, were rated higher for positive compared to negative memories. This difference, however, was stronger for the self-perception factor.

Discussion

The present study provides a first examination of the factorial structure of the CES short form on two levels (within and between persons) as well as for two types of life events (positive and negative). Whereas, a unidimensional scale might be sufficient to measure the centrality of stressful or traumatic life events, a more fine-graded measure seems better suited to understand the different roles of positive and negative life events for a person's identity and life story.

Characteristics of positive and negative autobiographical memories central to identity: emotionality, vividness, rehearsal, rumination, and reflection

Introduction

Some events are remembered as more central to a person's identity than others. However, it is not entirely clear what characterizes these autobiographical memories central to one's identity. In this study, we examined the effects of various characteristics on centrality to identity of positive and negative memories. Characteristics such as emotionality, vividness, and how frequently a memory is retrieved and shared with others as well as ruminative and reflective self-foci were studied.

Methods

The sample included 356 participants (18-92 years of age). First, participants responded to demographic questions and individual difference questionnaires. Next, they recalled memories in response to 12 emotional cue words. The cue words were balanced for emotional valence (i.e., six positive and six negative) and presented in a random order. After retrieving all memories, participants rated them regarding centrality, using the short seven-item Centrality of Event Scale and other memory characteristics, on a seven-point Likert scale. Multivariate multilevel regression was used for data analyzes, to consider multiple characteristics at the same time and account for data dependency within individual.

Results

The results showed that emotionality, vividness, and frequency of memory retrieval contributed to higher centrality of memories, and employing a reflective self-focus resulted in rating memories as more central. In specific cases, these characteristics were associated differently with centrality of positive and negative memories.

Discussion

Central memories can be perceived as markers in a person's life story. The findings of this study suggest that these marker events are also highly available in a person's memory system, by being actively emotional, visually rich, and frequently retrieved. Moreover, not only memory characteristics but also individual's features are important to fully understand the autobiographical memory centrality.

Psychometric properties of the Chinese version of the Centrality of Event Scale across multiple trauma-exposed Taiwanese samples

The widely used Centrality of Event Scale (CES) measures the extent that a traumatic event serves as a central component of self-identity, a reference point, and a turning point in an individual's life story. The present study aimed to develop a Chinese version of the CES and assess its reliability, criterion validity, and factor structure. Data were collected from three samples of trauma-exposed Taiwanese individuals (N = 939), including 420 earthquake survivors, 300 trauma-exposed community adults, and 219 trauma-exposed undergraduate students. We conducted an exploratory factor analysis and confirmatory factor analysis and compared the resulting models with a one-factor model and the originally proposed model. The results indicated that a new three-factor model, S-Bχ² (167, N = 519) = 687.01, p < .001, CFI = .95, IFI = .95, NNFI = .94, RMSEA = .078, SRMR = .047, might better represent the construct compared to the one-factor or originally proposed model. Furthermore, the Chinese CES demonstrated excellent internal consistency, Cronbach's αs = .89-.94; adequate 1-month reliability, rs = .54-.64, and 6-month temporal stability, rs = .52-.67; and good concurrent and predictive validity. The findings indicate that the Chinese version of the CES demonstrates good psychometric properties with a three-factor structure, and it could be used to assess event centrality among nonclinical trauma-exposed Taiwanese adults.

Resolving the paradox of posttraumatic growth and event centrality in trauma survivors

When a traumatic experience is central to an individual's identity and worldview, it can result in either severe posttraumatic stress disorder (PTSD) symptoms, perceived posttraumatic growth (PTG), or, paradoxically, both. To resolve this apparent paradox, we used network analytic methods to estimate the relations among components of event centrality (EC), PTSD symptoms, and PTG in 1,136 undergraduates who had experienced trauma. Participants completed surveys on their experiences with traumatic events as well as the degree to which they experienced PTSD symptoms, components of EC, and components of PTG. We performed network analysis to examine EC, PTSD, and PTG and identify which components of EC were most conducive to its associations with PTSD versus those with PTG. We found that the components of EC most associated with PTSD, the extent to which trauma serves as a script for the future, were markedly distinct from the components associated with PTG, the extent to which trauma is seen as a turning point in one's life. The combined findings suggest that EC may be a catalyst for subsequent positive or negative effects contingent upon how an individual interprets the centrality of their traumatic experience.

The Dutch 20 Item Centrality of Event Scale

Abstract. Event centrality is defined as the extent to which a memory of a traumatic event forms a reference point for people’s identity and attribution of meaning to other experiences in their life. Event centrality is typically measured with the Centrality of Event Scale (CES; Berntsen & Rubin, 2006 ). The present study’s first aim was to investigate the underlying factor structure and construct validity of the Dutch 20-item CES (CES-20) in undergraduates ( N = 1,091). The second aim was to test whether the CES-20 could prospectively predict posttraumatic stress disorder (PTSD) symptoms four months later. The data supported a one-factor structure of the CES with a high internal consistency (α = .95), which is not in line with the theoretical model of event centrality but aligns with previous empirical research. Furthermore, high construct validity was evidenced by positive and significant relations between the CES and PTSD symptoms, depressive symptoms, DSM-5 trauma A criterion, and the number of experienced negative life events. Event centrality was not a significant predictor of PTSD symptoms four months later when controlling for PTSD symptoms at time 1, which questions the prospective relation between event centrality and later PTSD symptoms for those events.

Validierung der deutschen Übersetzung der Centrality of Event Scale (CES-G)

Zusammenfassung. Theoretischer Hintergrund: Eine wachsende Zahl von Forschungsarbeiten weist auf die Bedeutung der wahrgenommenen Zentralität eines traumatischen Ereignisses in der eigenen Lebensgeschichte für das Verständnis von Symptomen der Posttraumatischen Belastungsstörung (PTBS) hin. Zur Untersuchung dieser Beziehung exisitert bislang noch kein Messinstrument, das die Ereigniszentralität auf Deutsch erfasst. Fragestellung: Um die Forschung auf diesem Gebiet im deutschsprachigen Raum zu ermöglichen, wird die Centrality of Event Scale (CES; Berntsen & Rubin, 2006 ) in einer deutschen Übersetzung (CES-G) vorgestellt und hinsichtlich ihrer psychometrischen Eigenschaften untersucht. Methode: Zur psychometrischen Auswertung wurde die CES-G 322 Student_innen sowie 115 ambulanten Patient_innen mit ausgeprägter PTBS-Symptomatik vorgelegt. Ergebnisse: Die CES-G zeigt eine hervorragende interne Konsistenz, substanzielle Korrelationen mit Maßen von PTBS Symptomen, allgemeiner Psychopathologie, Depressivität und maladaptiven kognitiven Prozessen sowie eine kriterienbezogene Validität bezüglich PTBS Symptomen in einer klinischen Stichprobe. Schlussfolgerungen: Die deutsche Übersetzung der CES ist ein verlässliches und valides Messinstrument für Ereigniszentralität.

The Persian version of the centrality of event scale (CES): Assessment of validity and reliability among Iranian university students

BACKGROUND

Event centrality, the extent to which an experience is perceived as a central event in one's life, has been found to be a strong correlate of posttraumatic stress disorder (PTSD). The centrality of event scale (CES) is commonly used in different conditions and cultures to measure trauma-related effects. However, the psychometric properties of this scale have not been investigated in the Iranian context.

METHODS

The present study examined the psychometric properties of the Persian translation of the 7-item CES in a sample of 525 university students with a history of a romantic breakup.

RESULTS

Confirmatory factor analysis confirmed a one-factor structure. The CES score was positively correlated with psychological inflexibility and PTSD symptoms. The measurement invariance analyses showed that the 7-item CES is gender invariant and can be used for both men and women.

FINDINGS

Findings supported the good psychometric properties of the 7-item CES for measuring event centrality in Iranian university students.