The current study evaluated the Kiswahili version of General Health Questionnaire (GHQ-12) in a Kenyan context comprising of women exposed to gender-based violence. Participants were randomly drawn from community sampling using household screening methods in peri-urban areas in Nairobi. A total of 1,394 participants with varying levels of literacy (years of education: mean [M] = 9.42; standard deviation [SD] = 3.73) and aged between 18 and 89 years were recruited for the study. The observed factor structure of the GHQ-12 was evaluated using six most tested models querying the dimensionality of the instrument insofar as the impacts of positive and negative wording effects in driving multidimensionality. Results from the confirmatory factor analysis supported a bifactor model, consisting of a general distress factor and two separate factors representing common variance due to the positive and negative wording of items. Overall, the findings support the use of the Kiswahili version of the GHQ-12 as a unidimensional construct with method-specific variance owing to wording effects. Importantly, GHQ-12 responses from a sample of Kenyan women with relatively low levels of literacy are congruent with the factor structure observed in other cross-cultural settings in low- and-middle-income countries.

Internal state language (ISL) research contains knowledge gaps, including dimensionality and predictors of growth, addressed here in a two-aim study. Parent-reported expressive language from N = 6,373 monolingual, English-speaking toddlers (Mage = 23.5mos, 46% male, 57% white) was collected using cross-sectional and longitudinal data in WordBank. Exploratory and confirmatory factor analyses suggested a best-fitting one-factor model of ISL. The single-factor model of ISL was then submitted to hierarchical linear modeling to evaluate predictors of ISL development. Age 2 ISL production was predicted by child sex, wherein females outperform males, and maternal education, wherein higher education contributes to higher ISL. Only maternal education emerged as a significant predictor of ISL growth. These results provide support to theory suggesting a unitary construct of ISL, as opposed to considering ISL as categorical, and further illustrate linear growth through the second postnatal year that varies as a function of child sex and maternal education.

Background: Post-event processing (PEP) is an important maintenance factor of social anxiety disorder (SAD). This study examined psychometric properties of the Positive Beliefs about Post-Event Processing Questionnaire (PB-PEPQ; Fisak & Hammond, 2013), which measures metacognitive beliefs about PEP. Method: Participants receiving treatment for SAD (n = 71) and other anxiety and related disorders (n = 266) completed self-report questionnaires at several timepoints. Results: Confirmatory factor analysis did not support the PB-PEPQ's proposed unidimensional model. Subsequent exploratory factor analysis yielded a three-factor structure consisting of engaging in PEP to (1) review negative events (Negative scale), (2) review positive events (Positive scale), and (3) better understand one's social anxiety (Understand scale). Within the SAD subsample, PB-PEPQ scales demonstrated good internal consistency (α = 0.83–0.85) and test–retest reliability (r = 0.65–0.78). Convergent and criterion validity of the PB-PEPQ Negative scale were supported. PB-PEPQ scale scores were significantly higher within the SAD group, as compared with the other groups (generalised anxiety disorder, panic disorder and agoraphobia, posttraumatic stress disorder, and obsessive-compulsive disorder), supporting the scales’ discriminative validity. Conclusion: Findings support the reliability and validity of the PB-PEPQ in a clinical sample and reveal the measure's multifactorial structure.

This study investigated the nature of factor structure of schizophrenia syndromes using a sample of 151 patients with schizophrenia according to DSM-IV. The patients were assessed on the Scale for the Assessment of Positive Symptoms (SAPS), the Scale for the Assessment of Negative Symptoms (SANS), Hamilton Depression Rating Scale (HDRS) and the Phillips Rating Scale of Premorbid Adjustment in schizophrenia. Three factors—negative syndrome, reality-distortion syndrome and disorganized syndrome were extracted when only SAPS and SANS were analysed. Addition of the Phillips Rating Scale scores to SAPS and SANS ratings in the factorial equation led to splitting of the negative syndrome though reality-distortion and disorganized syndromes remained stable. Factor analysis of the HDRS scores with SAPS and SANS ratings resulted in the HDRS loading highly on reality-distortion syndrome and splitting of negative syndrome. Factor analysis of all the variables taken together resulted in delineation of four factors. The study suggests a link between depression and reality distortion. Apathy and anhedonia seem to be linked to premorbid adjustment.

The identification of dysfunctional patterns in individuals’ interpersonal interactions is a cornerstone of psychotherapy. The Inventory of Interpersonal Problems (IIP-32) is one of the most used measures to explore individuals’ interpersonal styles. However, an IIP-32 Portuguese version is missing. Therefore, this study describes a preliminary psychometric study of an IIP-32 Portuguese version in a nonclinical sample. In a cross-sectional correlational design, 250 participants (M age = 20.67, SD = 4.88, males = 33, females = 217) were assessed with self-report questionnaires. Exploratory factor analysis (EFA), convergent, and divergent validities of the IIP-32 were tested with the Interpersonal Reactivity Index (IRI). Relationships with symptomatology were also tested with the Brief Symptom Inventory (BSI-53). The EFA showed a theoretically coherent eight-factor structure. Almost all of the IIP-32 subscales were positively correlated with personal discomfort and with BSI-53 subscales. Vindictive/self-centred, socially inhibited, domineering/controlling and self-sacrificing subscales predicted symptomatology. Promising preliminary psychometric properties were found that may support the IIP-32 as a reliable instrument to assess interpersonal styles. However, more research is required to deepen the analysis of the IIP-32 in the Portuguese population.

Background and aims: Many sustaining traumatic brain injury (TBI) suffer ongoing post-concussion symptoms (PCS). The Rivermead Post-Concussion Symptoms Questionnaire (RPQ) is widely used, although there is disagreement about its structure. This study compared the fit of published RPQ structures with a four-factor structure derived from a large adult sample with TBI in Tasmania.

Method: 661 adults with TBI completed the RPQ at approximately one month post injury. Exploratory factor analysis (EFA), using the first half of the sample (n = 330), suggested a four-factor solution. This was compared with models reported in the literature with the second half of the sample (n = 331), using structural equation modelling. Trajectory of recovery across these factors was examined within subsamples at 1, 3, 6 and 12 months following TBI.

Results: Inter-correlations between items were strongest for somatic, cognitive and emotional functioning items and the EFA identified a four-factor model. Fit was examined utilising bootstrapping for model comparison. The data at 1 month following TBI best fitted the four-factor model (CFI = .95, RMSEA = .060 (.049–.071) and factors had adequate internal consistency (r = .61–.89). This model appeared a good fit and clinically useful across time points to 12 months post injury.

Conclusions: Data best fitted a four-factor model, identified using a rigorous statistical approach. Clinicians and clinical researchers may use this preferred model to provide more specific measurement of the severity of PCS. Future research could attempt replication within international samples.

Medial temporal lobe (MTL)/memory and frontal lobe (FL)/executive functions indexes are used to measure changes related to cognitive aging. These indexes are based on composite scores of neuropsychological tests validated in English-speaking populations, and their use in aging research is growing in popularity. This study aimed at validating the MTL/memory and FL/executive functions indexes in French-speaking adults. Ninety-eight healthy participants (32 young and 66 older adults) were tested on eight neuropsychological tests, three associated with MTL/memory functions and five associated with FL/executive functions. Factor analysis indicated that residual scores independent of age and associated with MTL/memory functions grouped under one factor, and residual scores associated with FL/executive functions grouped under another factor. Bootstrapping analysis with 1,000 resamples confirmed stability for seven neuropsychological tests. This study provides the first validation of the MTL/memory and FL/executive functions composite scores in French-speaking adults, which may be used to assess cognitive changes in aging research.

The main goal of this study was to analyze the psychometric properties and factor structure of the Cuestionario para Evaluar la Asertividad (CEA-ESO). This questionnaire is the Spanish version of the Children’s Assertive Behavior Scale (CABS) on which students self-rate their inhibited, assertive, and aggressive relational styles. The questionnaire was administered to 640 students of Compulsory Secondary Education (CSE) aged between 11 and 16 years old, from various schools of the province of Barcelona, Spain. The homogeneity analysis carried out suggests a bidimensional structure in contrast to the tridimensional structure proposed for the original version of the CABS, that is, the CEA-ESO is effective for the discrimination of students’ assertive and aggressive behaviors, but inhibition is weakly represented. The reliability analyses of the questionnaire reveal a scale originally targeting students over 15 years of age, but with adequate internal consistency also for age groups between 12 and 14 years. The advantages of using a single instrument for the entire period of CSE are commented on. The Spanish adaptation of the CABS is considered an adequate instrument to assess assertiveness at school, but further research is required to confirm its capacity to discriminate students’ three interpersonal relational styles.

The Eating Attitudes Test-40 (EAT-40; Garner & Garfinkel, 1979) is one of the most widely used measures in the field of eating disorders (ED). The factor structure of the EAT-40, as well as the optimal cut-off score to identify subjects with ED, are subjects of debate. Both controversial issues are addressed in the present study. Participants were 95 clinical females meeting DSM-IV-R criteria for ED and 89 females without ED. The results supported a unidimensional structure of the EAT-40 items scores. The general factor accounted for a high percentage (50.63%) of the variance in EAT-40 total scores. The questionnaire proved to have good internal consistency and test–retest reliability. Clinical participants displayed higher mean scores than normal subjects in the EAT-40. Further, participants meeting DSM-IV-R criteria for ED differed significantly from “symptomatic” and “asymptomatic” participants. Correlations with the BULIT-R and the EDI-II scores supported the convergent validity of the questionnaire. The EAT-40 also demonstrated good specificity (94.38%) and sensitivity (93.68%) to detect ED when a cut-off score of 27 was used to discriminate between subjects with and without ED. The implications of these findings for the conceptualization and the assessment of ED are discussed.

Three studies aimed at developing the Spanish version of the Inventory of Parent and Peer Attachment (IPPA; Armsden & Greenberg, 1987) and at analyzing its factor structure are reported. In Study 1, the Spanish translation of items and their content analysis was carried out via cognitive interviews. In Study 2, the three-factor structure proposed by authors was tested in a sample of 417 adolescents (270 girls and 147 boys) using confirmatory analysis, and indexes showed a suboptimal fit. A principal component analysis yielded one-dimensional structures in father, mother and peer versions, explaining 54.3%, 50.8%, and 50.8% of the variance respectively. On the basis of the factor loadings and of the item-total correlations, a shortened version of the inventory was created. Convergent validity was tested with measures of family climate, parenting socialization and self-esteem. In Study 3, the one-dimension structure was confirmed in a new sample of 604 adolescents (335 girls and 269 boys). Based on all factor analyses and convergent validity indices obtained, we conclude that the Spanish IPPA questionnaire reliably and validly assesses adolescent attachment using only a dimension of attachment security.

Although studies in several populations have provided support for Penn State Worry Questionnaire (PSQW) reliability and validity, factor analysis studies carried out on different populations show divergent results. The aim of this article is to contribute with the cross-cultural literature on PSWQ. This report describes two studies examining the psychometric characteristics of a revised Argentinean version of the PSWQ. In the first study, items of original PSWQ were translated into Spanish and then back-translated into English. Then, in order to examine its reliability and factorial structure, the instrument was completed by 400 community participants. The second study included two groups of participants as follows: patients with generalized anxiety disorder (GAD), and patients with other anxiety disorders (AC). Results revealed appropriated test-retest reliability over a four-week period, high internal consistency, and good convergent and discriminant validity for PSWQ. In concordance with some results reported in previous studies, a single factorial structure was confirmed for the Argentinean version of PSWQ. By the other hand, a receiver operating characteristic analysis was made to evaluate the ability of PSWQ to discriminate GAD from individuals with others anxiety disorders. A total score of 63 simultaneously optimized sensitivity and specificity in discriminating GAD patients from patients with others anxiety disorders.

Two studies evaluated the psychometric properties and the latent structure of the Portuguese version of the Penn State Worry Questionnaire (PSWQ) in a large Brazilian college student sample. Results indicated that PSWQ had an adequate internal consistency. Exploratory factor analyses yielded a two-factor solution. One factor was related to the worry presence and incorporated all the non-reversed items. The other factor was associated to worry absence and incorporated all the reversed items. Confirmatory factor analysis leaded to a three-factor solution. One factor included all the PSWQ items whereas the two other factors were linked to the reversed and non-reversed worded items. Correlations coefficients of these two reversed and non-reversed factors with the total scores of the PSWQ and the trait form of the State-Trait Anxiety Inventory suggest that PSWQ has a single meaningful construct.