Ceiling Effects and Floor Effects of the Posttraumatic Growth Inventory

The current study investigated the effects of a brief psycho-educational presentation about posttraumatic growth (PTG: positive changes that may occur as a result of psychological struggle with a highly stressful life event) on the self-reported PTG by using the PTG Inventory (PTGI). Few empirical studies have investigated the possible ceiling or floor effects of the PTGI, despite researchers indicating the necessity of longitudinal studies to reveal the PTG processes. This study used a pre-test, brief presentation, and post-test longitudinal design to examine the effects of intervention among adolescents by considering the floor and ceiling effects of the PTGI. Participants, 54 high school students (37 females, 17 males, Mean age?=?15.92 years), completed the PTGI at three weeks interval. Results using the Latent Rank Theory approach demonstrated ceiling effects in students who reported a high degree of PTG at Time 1, and floor effects in students with low PTG at Time 1. Presentation effects were not evident even in those who reported a moderate degree of PTG at Time 1. These findings suggest that it is important to be aware of the ceiling/floor effects while measuring changes in PTG perception over time and that explaining the phenomenon of PTG is not likely to be enough to affect the PTG perceptions.     

创伤后成长:概念、影响因素、与心理健康的关系

创伤后成长是指在与生活中具有创伤性质的事件或情境进行抗争后体验到的心理方面的正性变化。许多因素,包括人口统计学、创伤事件的特征、人格与认知、社会支持与应对方式等都对创伤后成长有影响。创伤后成长与心理健康的关系未有一致的结论,两者间关系的不一致有四种可能的解释。未来研究应注意创伤后成长与相关概念的区别,探寻确证成长有效性的新证据和新方法。     

An MCMI-II item-level component analysis: personality and clinical factors

The Millon Clinical Multiaxial Inventory, Version 2 (MCMI-II) was released to replace the MCMI-I. Research into the factor structure of the items of the MCMI-I showed components consistent with the underlying construction theory. No such work has been done with the new MCMI-II. For this study, we analyzed the personality disorder and clinical syndrome items across two subject samples. For 579 Veterans Administration patients and 492 normal college students, six personality factors were identified. The samples shared Hostility, Histrionic/Schizoid, Dependent, Compulsive, and a Sadistic variant. For the clinical syndrome items, eight factors were isolated for veterans and seven for normals. Depression, Alcohol Abuse, Drug Abuse, Crying, and Mania were shared factors. Most of the factors were found to be highly consistent with MCMI-II scale keyings.     

An item-level examination of the Flynn effect on the National Intelligence Test in Estonia

This study examined the Flynn effect (FE; i.e., the rise in IQ scores over time) in Estonia using the Estonian version of the National Intelligence Tests (NIT;  and ). Using secondary data from two cohorts (1934, n = 890 and 2006, n = 913) of students, we analyzed the NIT's subtests using item response theory (IRT). For each subtest, we first examined invariance in all the items and then linked the latent variable (θ) scores between the two cohorts using the invariant items. The results showed that there was a FE in θ for all subtests except one, although there was much variability in the FE magnitude, ranging from an effect size of 0.24 (3.60 IQ points) to 1.05 (15.75 IQ points). In addition, this study showed there was a decrease in the variability of θ for all the subtests, although only two of the subtests showed large decreases (approximately .50 standard deviations). Last, the subtests' precision of measuring θ was very similar at both time points.     

Investigation of Psychometric Properties of the Georgian Version of Posttraumatic Growth Inventory

This paper reports the analysis of psychometric properties of the Georgian version of the Posttraumatic Growth Inventory (PTGI-Geo). In particular, factor structure, internal consistency of the subscales, gender differences, and relation between traumatic event category and posttraumatic growth (PTG) are examined. The study had 641 participants in two studies (study 1, n = 300; study 2, n = 341 participants). The study revealed that PTGI-Geo consists of four factors, instead of the original five factors; namely, the first three factors (New Possibilities, Relation to Others, and Personal Strength) remained unchanged, while the fourth (Spiritual Change) and the fifth (Appreciation of Life) factors merged and formed a new fourth factor. All four new factors have similar internal consistency as the original inventory. There were also some between-person differences for gender consistent with other research.     

Long Term Posttraumatic Growth After Breast Cancer: Prevalence,Predictors and Relationships with Psychological Health

This study evaluated the prevalence and predictors of long term posttraumatic growth (PTG) after breast cancer, and relationships of PTG with psychological health in a random sample of 307 currently disease-free women 5–15 years after diagnosis. This cross-sectional study reveals long term posttraumatic growth scores comparable to those found in shorter term studies. Prevalence of a better appreciation of life is especially noteworthy. With the exception of perceived current sequelae of disease associated in a somewhat curvilinear fashion with PTG, demographic and medical variables are poor predictors of the issue. On the contrary, dispositional positive affectivity and adaptative coping of positive, active, relational, religious and to some extent denial coping have a strong effect on growth. Finally, PTG is slightly associated with mental quality of life and happiness. Findings are discussed in the light of posttraumatic growth theory.     

Italian Adaptation and Confirmatory Factor Analysis of the Full and the Short Form of the Posttraumatic Growth Inventory

This study was designed to adapt and to assess the reliability and factor structure of an Italian translation of the full and short form of the Posttraumatic Growth Inventory. A sample of 1,244 Italian adults who had experienced a range of adverse life events participated in this study. Five models of the underlying structure of the Posttraumatic Growth Inventory were tested via confirmatory factor analyses. Analyses of both the short and full form of the PTGI provided support for the original correlated five-factor structure. Multigroup confirmatory factor analysis supported the invariance of the Posttraumatic Growth Inventory across gender.     

Natural Disasters in Indonesia: Relationships Among Posttraumatic Stress,Resource Loss,Depression, Social Support,and Posttraumatic Growth

ABSTRACT

Indonesia is at significant risk for catastrophic natural disasters, including earthquakes, volcanic eruptions, and tsunamis. Few studies have examined psychological functioning following disaster exposure in Indonesia, the fourth most populous country in the world. This study assesses variables associated with posttraumatic stress and posttraumatic growth following a devastating earthquake in Central Java that ranks as one of the costliest in Indonesia. The participants were 85 men and women living in rural farming villages. Almost all (95%) experienced major home damage or total home destruction. Posttraumatic stress symptoms were associated with resource loss, depression, and concerns about future earthquakes. Participants reported moderate posttraumatic growth. Posttraumatic growth was associated with energy resource loss and social support. The findings support conservation of resources stress theory. The implications of the findings for intervention and recovery programs are discussed.     

Relationships between autistic-like and schizotypy traits: An analysis using the Autism Spectrum Quotient and Oxford-Liverpool Inventory of Feelings and Experiences

To further investigate claims of a relationship between autism and schizophrenia, the current study examined the associations between specific dimensions of autistic-like and schizotypy traits. These traits were assessed using the Autism Spectrum Quotient and the Oxford-Liverpool Inventory of Feelings and Experiences. After using factor analysis to explore the dimensions of autistic-like and schizotypy traits represented in these measures in two separate groups of students (N₁ = 362, N₂ = 639), the relationships between these dimensions were examined. While the results are consistent with suggestions in the literature of an overlap in the interpersonal deficits associated with autism and schizophrenia, they offer little support for Crespi and Badcock’s (2008) claim that autism and positive schizophrenia are diametrically opposed disorders.     

Metacognition,rumination and road rage: An examination of driver anger progression and expression in Australia

Road rage is a serious issue impacting road safety on Australian roads. This study investigated the psychological antecedents involved in aggressive driver behaviours. Specifically, the study investigated the relationships between metacognitive beliefs, anger rumination, trait driver anger, and driver aggression; and examined the extent of aggressive behaviours in a sample of Australian drivers (N = 246). An inspection of cross-tabulations indicated that nearly all drivers engaged in verbal driver aggression (94%), approximately half of the drivers engaged in vehicle aggression (53%), and approximately a quarter of the drivers engaged in physical aggression (27%). Driver aggression was more commonly reported from males, open licensed, and middle-aged drivers. Structural path analysis indicated that there was a hierarchical series of relationships present, in that metacognitive beliefs influenced cognitive constructs such as anger rumination and constructive expression. Additionally, such factors were shown to more prominently influence trait driver anger, and the degree to which it was expressed. Bivariate correlations also demonstrated that the relationships carried forward to more specific dimensions of anger rumination and driver aggression styles. The findings of this study may assist to identify the origins of psychological mechanisms involved with anger progression and expression and inform potential interventions for aggressive driving behaviours.     

Individual differences in anger and displaced aggression: The role of metacognitive beliefs and anger rumination

Metacognitive model is a theoretical approach aimed to explain emotion dysregulation and others emotion-related issues, such anger, and aggressive behavior. From this model, people having higher maladaptive metacognitive beliefs (e.g., “I can't control my thoughts”) are more likely to activate and maintain anger rumination and, in turn, to experience higher levels of anger and to act aggressively. Preliminary evidence shows the role of metacognitive beliefs on anger rumination and anger levels, whereas no studies have examined its association with aggressive behavior. This study first examined the associations between metacognitive beliefs, anger rumination, anger levels, and the propensity to engage in displaced aggression, and second, the mediation role of anger rumination in the relations among metacognitive beliefs and anger and displaced aggression. Participants were 947 students and non-students from general population recruited in two different countries (Australia and Spain). Correlational analyses revealed a similar pattern of results in the Australian and Spanish sample, with participants having dysfunctional metacognitive beliefs also showing higher anger rumination, higher levels of anger and a higher tendency to act aggressively. Structural equation analyses revealed the associations of metacognitive beliefs with anger levels and displaced aggression was fully mediated by anger rumination in both samples. These results suggest that metacognitive beliefs should be considered in comprehensive models and in the therapy of anger problems and aggression.     

Event Centrality,Posttraumatic Cognitions,and the Experience of Posttraumatic Growth

This study tested the extent to which negative appraisals following traumatic events and the centrality of traumatic events predicted posttraumatic growth (PTG; Tedeschi &; Calhoun, 1996 Tedeschi, R. G. and Calhoun, L. G. 1996. The posttraumatic growth inventory: Measuring the positive legacy of trauma. Journal of Traumatic Stress, 9: 76–80. [Crossref] , [Google Scholar]). Participants were 405 undergraduates at a Midwestern university who reported experiencing at least one traumatic event. Regression analyses indicated that the centrality of the event was a significant predictor for all five domains of PTG. Negative appraisals of the world were related to some domains of growth, but neither negative cognitions about the self nor self-blame was a significant predictor of any of the growth domains. Interpretation of these results is considered in light of the consistencies with Janoff-Bulman's (2004) Janoff-Bulman, R. 2004. Posttraumatic growth: Three explanatory models. Psychological Inquiry, 15: 30–34. [Crossref], [Web of Science ®] , [Google Scholar] explanatory models of development of PTG.     

Latent Trait Modeling with the Common beliefs Survey III: Using Item Response Theory to Evaluate an Irrational Beliefs Inventory

Assessment of irrational beliefs by such measures as the Common Beliefs Survey III (CBS) has traditionally relied upon classical test theory assumptions, in which the properties of specific test items are less important than the total test score as the aggregate of all item responses. An alternative approach using item response theory (IRT) methodology allows one to specify the parameters of difficulty and discrimination for each test item. Difficulty levels of CBS items range along a continuum of irrationality, the implied latent trait measured by responses to the questionnaire as a whole. We evaluated the CBS responses of 605 individuals from clinical and college settings, drawing from current and archival data. The original Likert scale ratings were recoded into dichotomous scores. Fourteen of the 54 items were highly or very highly discriminating in distinguishing respondents with high and low irrationality levels. However, discriminating items exhibited a very narrow range of difficulty; most functioned at a point a little above the halfway mark on the continuum of irrationality. Item characteristic curves and test information curves were very similar for female (n = 424) and male (n = 179) respondents. We derived a 4-item screening test for irrationality from our IRT analyses of the 54 CBS items. Further test development, focused on the selection and scaling of items with a much broader range of difficulty, would facilitate evaluation of the hierarchical structure of irrational beliefs. Portions of this paper were presented at the 39th Annual Convention of the Association for Behavioral and Cognitive Therapies, Washington, DC, November, 2005.     

When plausibility manipulations work: An examination of their role in the development of false beliefs and memories

In the current study we examined whether prevalence information and imagery encoding influence participants' general plausibility, personal plausibility, belief, and memory ratings for suggested childhood events. Results showed decreases in general and personal plausibility ratings for low prevalence events when encoding instructions were not elaborate; however, instructions to repeatedly imagine suggested events elicited personal plausibility increases for low-prevalence events, evidence that elaborate imagery negated the effect of our prevalence manipulation. We found no evidence of imagination inflation or false memory construction. We discuss critical differences in researchers' manipulations of plausibility and imagery that may influence results of false memory studies in the literature. In future research investigators should focus on the specific nature of encoding instructions when examining the development of false memories.     

Traditional gender role beliefs and individual outcomes: An exploratory analysis

The results of a survey administered to 806 undergraduate students serve as the basis for analyzing the relationships among traditional gender roles, same-sex intimacy, and homophobia. High levels of homophobia and low levels of intimacy were found among those who believe strongly in the traditional roles. Previous research has shown both homophobia and a lack of intimacy to be harmful to individuals and for society. The present findings may, therefore, constitute empirical evidence of the negative effects of gender roles. Sex differences found in the survey results also support this contention. A general model of the consequences of traditional gender role beliefs for those who hold these views is also speculated.     

Psychometric Properties of the Posttraumatic Cognitions Inventory (PTCI): a replication with motor vehicle accident survivors

This study examined the factor structure, internal consistency, concurrent validity, discriminant validity, and discriminative validity of the Posttraumatic Cognitions Inventory (PTCI; E. B. Foa, A. Ehlers, D. M. Clark, D. F. Tolin, and S. M. Orsillo, 1999) in a sample of 112 individuals who had experienced a serious motor vehicle accident. Results generally supported the 3-factor structure of the PTCI: (a) Negative Cognitions About Self, (b) Negative Cognitions About the World, and (c) Self-Blame. Subscales reflecting negative thoughts of the self and world showed adequate internal consistency, as well as good concurrent, discriminant, and discriminative validity. However, difficulties with the subscale representing self-blame emerged, specifically poor concurrent and discriminant validity. Potential reasons for this finding are discussed. The PTCI seems to be a promising measure of negative and dysfunctional posttrauma cognitions, which deserves continuing attention.