The factorial validity and reliability of three versions of the Aggression Questionnaire using Confirmatory Factor Analysis and Exploratory Structural Equation Modelling

The Aggression Questionnaire (AQ) measures aggression in four domains: Anger, Hostility, Physical Aggression and Verbal Aggression. Moreover, a number of shorter versions of the AQ have emerged. The present study used a large sample of adolescents to test three versions of the AQ. In each case we examined a unidimensional model, a hierarchical model, and a four-factor model. Results of Confirmatory Factor Analysis revealed limited support for a unidimensional model in any of the AQ forms, with results supporting the widely used four-factor model, and to a lesser extent, the hierarchical model. Fit indices for both short-forms of the AQ using Exploratory Structural Equation Modelling were very good. However, results also revealed only partial gender invariance for both scales

Evidence for the reliability and validity, and some support for the practical utility of the two-factor Consideration of Future Consequences Scale-14

Researchers have proposed 1-factor, 2-factor, and bifactor solutions to the 12-item Consideration of Future Consequences Scale (CFCS-12). In order to overcome some measurement problems and to create a robust and conceptually useful two-factor scale the CFCS-12 was recently modified to include two new items and to become the CFCS-14. Using a University sample, we tested four competing models for the CFCS-14: (a) a 12-item unidimensional model, (b) a model fitted for two uncorrelated factors (CFC-Immediate and CFC-Future), (c) a model fitted for two correlated factors (CFC-I and CFC-F), and (d) a bifactor model. Results suggested that the addition of the two new items has strengthened the viability of a two factor solution of the CFCS-14. Results of linear regression models suggest that the CFC-F factor is redundant. Further studies using alcohol and mental health indicators are required to test this redundancy

Measuring time perspective in adolescents : can you get the right answer by asking the wrong questions?

Time perspective continues to evolve as a psychological construct. The extant literature suggests that higher future orientation and lower present orientation are associated with better developmental outcomes. However, the extant literature also suggests that issues remain with the measurement of the construct. Recently, a 25-item version of the Zimbardo Time Perspective Inventory (ZTPI-25) was suggested for use based on high internal consistency estimates and good discriminant validity of scores in a sample of Italian adolescents. However, the genesis of this scale is uncertain. The present study examined the factorial validity, reliability, and concurrent validity of ZTPI-25 scores in Slovenian, American, and British adolescents. Results revealed satisfactory concurrent validity based on correlations with measures used in the development of the full ZTPI. However, internal consistency and factorial validity of scores were unsatisfactory. The present study questions the use of the ZTPI-25 with adolescents in the context of conceptual and measurement issues more broadly

Morally injurious events and posttraumatic embitterment disorder in U.K. health and social care professionals during COVID-19: A longitudinal web survey

To longitudinally estimate the prevalence and predictors of potentially morally injurious events (PMIEs) and posttraumatic embitterment disorder (PTED) and in U.K. health and social care workers (HSCWs) during the COVID-19 pandemic. Additionally, to investigate the mechanism by which PMIEs increase embitterment by lowering personal belief in procedural justice, that is, the belief that they experience fair processes. An online longitudinal survey was hosted on Qualtrics between September-October 2020 and September-November 2021. Using Prolific, 400 HSCWs aged 18 or above and working in the United Kingdom during the pandemic were recruited. PMIEs were assessed using the Moral Injury Events Scale, and PTED was assessed using the PTED self-rating scale. Potential predictors were measured using surveys of exposure to occupational stressors, optimism, pessimism, self-esteem, resilient coping style, consideration of future consequences, and personal just world beliefs. Seventy-one percent of participants experienced at least one COVID-related PMIE and 20% displayed clinically relevant signs of PTED at Time 2 in 2021. Exposure to occupational stressors increased the risk of experiencing PMIEs and PTED, whereas personal belief in a procedurally just world protected against transgressions by others and betrayal PMIEs. Self-esteem was protective, and a resilient coping style was a risk for experiencing betrayal. PMIEs increased embitterment by lowering personal belief in procedural justice over a 12-month period. PMIEs and PTED are being experienced by U.K. HSCWs in 2020 and 2021, particularly in those exposed to work-related stressors. Exposure to PMIEs increases the risk of embitterment by lowering belief in procedural justice. (PsycInfo Database Record (c) 2024 APA, all rights reserved)

Adolescents consider the future differently depending on the domain in question: results of an exploratory study in the United Kingdom

The study of Consideration of Future Consequences (CFC) construct has increased substantively in recent years. Underlying these developments is the presumption that consideration of the future is uniform across all domains, and not a domain-specific construct. Building on work undertaken previously, the present study used 30 researcher-derived items to assess the domain specificity of consideration of the future in three large samples of adolescents in the United Kingdom. A psychometrically valid and reliable 18-item scale measuring consideration of the future in four domains emerged. Domain specificity was supported on two levels: a good fitting multidimensional model of CFC; and low to moderate factor correlations for the four domains measured by the 18-item scale. The study suggests that adolescents are considerate of future outcomes to different degrees, depending on the domain, and the implications of this with regard to future research are discussed

Fecal-Sac Ingestion by Spotted Towhees

Altricial nestlings encase excrement in fecal sacs that parents remove by either ingesting them or transporting them away from the nest. Ingestion may allow energetically or nutritionally deprived parents to recapture energy or nutrients that might be lost because of nestlings\u27 inefficient digestion (the parental-nutrition hypothesis ), but ingestion may also permit parents to avoid flights from the nest that interfere with parental care (e.g., brooding young; the economic-disposal hypothesis ). We used a hypothetico-deductive approach to test the two hypotheses\u27 ability to account for fecal-sac ingestion by the Spotted Towhee (Pipilo maculatus). We confirmed the parental-nutrition hypothesis\u27 predictions that more fecal sacs should be ingested in years of food shortage (males only), late in the season when food supplies decline (both sexes), by parents that had the greatest difficulty raising young (i.e., underweight young), and that adults\u27 body condition should vary directly with their rate of fecal-sac ingestion (females only). We rejected the economic-disposal hypothesis\u27 prediction of a decline in fecal-sac ingestion with increasing brood size. The latter, plus the observation that nearly 40% of males ingest fecal sacs despite their spending virtually no time attending nests, suggests that fecal-sac ingestion is not a mechanism to avoid needless and time-consuming flights from the nest that interfere with parental care. Fecal-sac ingestion by Spotted Towhees is better interpreted as either a resource supplement to parents or as a mechanism to satiate hunger so that parents can maintain rates of feeding to dependent young

ICA model order selection of task co-activation networks

Independent component analysis (ICA) has become a widely used method for extracting functional networks in the brain during rest and task. Historically, preferred ICA dimensionality has widely varied within the neuroimaging community, but typically varies between 20 and 100 components. This can be problematic when comparing results across multiple studies because of the impact ICA dimensionality has on the topology of its resultant components. Recent studies have demonstrated that ICA can be applied to peak activation coordinates archived in a large neuroimaging database (i.e., BrainMap Database) to yield whole-brain task-based co-activation networks. A strength of applying ICA to BrainMap data is that the vast amount of metadata in BrainMap can be used to quantitatively assess tasks and cognitive processes contributing to each component. In this study, we investigated the effect of model order on the distribution of functional properties across networks as a method for identifying the most informative decompositions of BrainMap-based ICA components. Our findings suggest dimensionality of 20 for low model order ICA to examine large-scale brain networks, and dimensionality of 70 to provide insight into how large-scale networks fractionate into sub-networks. We also provide a functional and organizational assessment of visual, motor, emotion, and interoceptive task co-activation networks as they fractionate from low to high model-orders

Morally injurious events and post-traumatic embitterment disorder in UK health and social care professionals during COVID-19: a cross-sectional web survey

OBJECTIVE: To estimate the prevalence and predictors of morally injurious events (MIEs) and post-traumatic embitterment disorder (PTED) in UK health and social care professionals during the COVID-19 pandemic. DESIGN: Cross-sectional study. SETTING: September–October 2020 in the UK. Online survey hosted on Qualtrics, and recruited through Prolific. PARTICIPANTS: 400 health and social care workers, aged 18 or above and living and working in the UK during the pandemic. MAIN OUTCOME MEASURES: MIEs were assessed using the Moral Injury Events Scale and PTED was assessed using the PTED self-rating scale. Potential predictors were measured using surveys of exposure to occupational stressors, optimism, self-esteem, resilient coping style, consideration of future consequences and personal belief in a just world. RESULTS: 19% of participants displayed clinical levels of PTED, and 73% experienced at least one COVID-related MIE. Exposure to occupational stressors increased the risk of experiencing PTED and MIEs, whereas personal belief in a procedurally just world, which is the belief that they experienced fair processes, was a protective mechanism. CONCLUSIONS: MIEs and PTED are being experienced by UK health and social care professionals, particularly in those exposed to work-related stressors

A theoretical framework for combining techniques that probe the link between galaxies and dark matter

We develop a theoretical framework that combines measurements of galaxy-galaxy lensing, galaxy clustering, and the galaxy stellar mass function in a self-consistent manner. While considerable effort has been invested in exploring each of these probes individually, attempts to combine them are still in their infancy despite the potential of such combinations to elucidate the galaxy-dark matter connection, to constrain cosmological parameters, and to test the nature of gravity. In this paper, we focus on a theoretical model that describes the galaxy-dark matter connection based on standard halo occupation distribution techniques. Several key modifications enable us to extract additional parameters that determine the stellar-to-halo mass relation and to simultaneously fit data from multiple probes while allowing for independent binning schemes for each probe. In a companion paper, we demonstrate that the model presented here provides an excellent fit to galaxy-galaxy lensing, galaxy clustering, and stellar mass functions measured in the COSMOS survey from z=0.2 to z=1.0. We construct mock catalogs from numerical simulations to investigate the effects of sample variance and covariance on each of the three probes. Finally, we analyze and discuss how trends in each of the three observables impact the derived parameters of the model. In particular, we investigate the various features of the observed galaxy stellar mass function (low-mass slope, plateau, knee, and high-mass cut-off) and show how each feature is related to the underlying relationship between stellar and halo mass. We demonstrate that the observed plateau feature in the stellar mass function at Mstellar~2x10^10 Msun is due to the transition that occurs in the stellar-to-halo mass relation at Mhalo ~ 10^12 Msun from a low-mass power-law regime to a sub-exponential function at higher stellar mass.Comment: 21 pages. Accepted to Ap

The direct and indirect effect of loneliness on the development of adolescent alcohol use in the United Kingdom.

Alcohol use among adolescents in the United Kingdom (UK) remains relatively high compared to those in other European countries. The present study sought to examine both the direct and indirect effect of loneliness on drinking behavior. Participants were school children (mean age 13.5 years at Time 1) participating in a Randomized Controlled Trial in the UK, who completed a battery of questionnaires examining alcohol-use indicators, loneliness, self-efficacy and sensation seeking at Time 1 and at +12 months. Loneliness at Time 1 had a substantive, though largely indirect (i.e., via self-efficacy and sensation seeking covariates), impact on alcohol-related harm at +12 months. Furthermore, Loneliness interacted with gender in the prediction of context of alcohol use, where being female and experiencing loneliness put an individual at a greater risk of unsupervised drinking. Females experiencing loneliness were also 2.9 times as likely to have had a drink in the past 30 days, and around 2.5 times as likely to have ever consumed a full drink, when compared to their male peers. The current results indicate that loneliness is an important but complex factor in adolescent drinking. There are important implications for the development of interventions to prevent underage drinking, not least that it is not appropriate to consider all underage drinkers as socially marginalised. However, for those that are, the self-medication hypothesis is potentially relevant through emotional self-efficacy