Broad Sample Research Articles

Association Between Dimensions of Pathological Object Relations and Right‐Wing Conservatism

ABSTRACTRight‐wing conservatism in the United States has many features of psychological interest that evoke the question of what factors might be associated with it. One factor that may be of particular interest to psychoanalytically oriented social scientists is object relations, pathology in which is often operationalized in terms of three dimensions (identity diffusion, primitive defenses, and problems in reality testing). There are reasons to expect that each of these three dimensions might be associated with contemporary right‐wing conservatism, although this has not yet received much empirical examination. In this study we address this issue, examining the association between dimensions of pathological object relations and right‐wing conservatism in a broad sample of U.S. residents (N = 392) using a partial least squares approach to structural equation modeling. Results suggest that primitive defenses and reality testing problems are positively, and identity diffusion is negatively, associated with right‐wing conservatism. These findings have implications for how we might understand right‐wing conservatism and dialogue with those identifying with it.

ESG Performance and Financial Distress Risk Before and During the Covid-19 Pandemic

Objective: We examine the relationship between environmental, social, and governance (ESG) performance indicators and the risk of financial distress (RDF) of companies listed in 75 countries from 2012 to 2021, while also assessing the moderating effect of the COVID-19 pandemic on this relationship. Theoretical Framework: Based on literature linking ESG practices to financial benefits and risk reduction, including studies on ESG as a mitigator of financial distress and promoter of resilience during crises. Method: Binary Logistic Regression was used to estimate the relationship between ESG performance and RDF, with explanatory variables and controls based on existing literature. The sample included financial and ESG data extracted from the Refinitiv platform. Results and Discussion: Companies with better ESG performance exhibited a lower risk of financial distress. The ESG-RDF relationship remained stable during the sample period, suggesting the benefits of ESG practices in normal periods but with no evidence of enhanced resilience during crises. Research Implications: The results indicate that ESG practices can assist managers and investors in mitigating financial risks in both crisis and normal periods, contributing to strategic decisions and corporate policies focused on sustainability. Originality/Value: The study innovates by exploring the moderating impact of COVID-19 on the ESG-RDF relationship, covering a broad international sample and providing insights into corporate resilience during crises.

Cardiopulmonary Resuscitation Training and Its Impact on Health Care Students' Knowledge and Anxiety Levels

Purpose: This study examines the impact of cardiopulmonary resuscitation (CPR) training on the knowledge and anxiety levels of healthcare students in the Home Patient Care Program. Cardiac arrest, a life-threatening condition requiring immediate intervention, underscores the critical importance of proper CPR application. Methodology: The research utilized an experimental design with pre-test and post-test evaluations, involving 77 first-year students from Kastamonu University's Tosya Vocational School of Health Services. Participants were divided into experimental (n=34) and control (n=43) groups. The experimental group received five weeks of CPR and stress-anxiety management training based on the European Resuscitation Council's 2015 guidelines. Data were collected using a CPR knowledge questionnaire and the State-Trait Anxiety Inventory (STAI). Findings: Results revealed significant improvements in the CPR knowledge scores of the experimental group, increasing from 3.47 (±1.73) to 10.09 (±1.68) (p < 0.001). Concurrently, their state anxiety levels decreased from 45.09 (±10.54) to 38.50 (±9.08) (p < 0.001), and trait anxiety scores showed a moderate reduction. No significant changes were observed in the control group. Unique Contribution to Theory, Practice and Policy: The findings highlight the necessity of integrating CPR training with stress and anxiety management programs in healthcare education. Such training enhances students' ability to perform CPR effectively and reduces psychological barriers, ultimately improving patient outcomes. Further research with broader samples is recommended to validate these results.

Variation in whale (Cetacea) inner ear anatomy reveals the early evolution of "specialized" high-frequency hearing sensitivity.

As fully aquatic mammals, hearing is arguably the most important sensory component of cetaceans. Increasingly, researchers have been harnessing computed tomography (CT) to investigate the details of the inner ear as they can provide clues to the hearing abilities of whales. We use microCT scans of a broad sampling of the ear bones (periotics) of primarily toothed whales (Odontoceti) to investigate the inner ear bony labyrinth shape and reconstruct hearing sensitivities among these cetaceans, including several taxa about which little is currently known. We find support for sensitivity to the lower frequency spectrum in the archaeocete Zygorhiza kochii and an early toothed mysticete cf. Aetiocetus. Oligocene odontocetes (including one from our novel dataset), stem delphinidans, and two additional species of the long-snouted eurhinodelphinids are found to have been able to hear within the narrow-band high-frequency spectrum (NBHF), which is thought to be a specialized form of hearing that evolved convergently multiple different times in extant groups to avoid predation by macroraptorial predators. Our results thus indicate that NBHF evolved as early as the Oligocene and certainly in stem delphinidans by the early Miocene, and thus may be an ancestral characteristic rather than a more recent innovation in select groups.

Cranial morphology and phylogenetic reassessment of Barreirosuchus franciscoi (Crocodylomorpha, Notosuchia), a Peirosauria from the Late Cretaceous of Brazil.

With nearly 30 living species of relatively similar ecological traits, Crocodylomorpha is represented today by only a small fraction of its past diversity. The well-documented crocodylomorph fossil record has revealed more than 500 taxa, with much higher ecological and morphological diversity than their extant counterparts. An example of such astonishing diversity is the Late Cretaceous rocks of the Bauru Group (southeast Brazil), from which numerous taxa are known, belonging to the clade Notosuchia. These were predominantly terrestrial taxa, some of which exhibited traits associated with omnivorous or even herbivorous feeding behaviors, such as Sphagesauridae, whereas others were adapted to a carnivore diet, such as Baurusuchidae and Peirosauridae. Among these is Barreirosuchus franciscoi, originally described as a neosuchian (Trematochampsidae) but later interpreted as a peirosaurid notosuchian. Even though included in recent morphological and phylogenetic analyses, B. franciscoi still lacked a more detailed description. Here, we provide an in-depth description of the cranial elements of B. franciscoi, using data from computed tomography and a broad sample of comparative material, including living and fossil crocodylomorphs. Also, the neuro-cavities, including the endocast, nasopharyngeal duct, and the olfactory region, were digitally reconstructed. Finally, a new phylogenetic analysis recovered B. franciscoi nested within Peirosauria, forming the Itasuchidae clade with other potentially semiaquatic species: Rukwasuchus yajabalajekundu, Pepesuchus deiseae, and Itasuchus jesuinoi. The morphological and phylogenetic reassessment of B. franciscoi indicates a semiaquatic form, highlighting the ecological diversity of notosuchians from the Bauru Group as well as the capacity of notosuchians to explore a myriad of environments.

Plastid Phylogenomic Analysis of Podostemaceae with an Emphasis on Neotropical Podostemoideae

Abstract— Podostemaceae are a clade of aquatic flowering plants that form important components of tropical river ecosystems. Species in the family exhibit highly derived growth forms and high vegetative phenotypic plasticity, both of which contribute to taxonomic confusion. The backbone phylogeny of the family remains poorly resolved, many species remain to be included in a molecular phylogenetic analysis, and the monophyly of many taxa remains to be tested. To address these issues, we assembled sequence data for 73 protein-coding plastid genes from 132 samples representing 68 species (∼23% of described species) that span the breadth of most major taxonomic, morphological, and biogeographic groups of Podostemaceae. With these data, we conducted the first plastid phylogenomic analysis of the family with broad taxon sampling. These analyses resolved most nodes with high support, including relationships not recovered in previous analyses. No evidence of widespread, well-supported conflict among individual plastid genes and the concatenated phylogeny was observed. We present new evidence that four genera (Apinagia, Marathrum, Oserya, and Podostemum), as well as four species, are not monophyletic. In particular, we show that Podostemum flagelliforme should not be included in Podostemum and is better recognized as Devillea flagelliformis, and that Marathrum capillaceum is embedded within Lophogyne s.l. and should be recognized as Lophogyne capillacea. We also place a previously unsampled and undescribed species that likely represents a new genus. In contrast to previous studies, the neotropical genera Diamantina, Ceratolacis, Cipoia, and Podostemum are resolved as successive sister groups to a clade of all paleotropical Podostemoideae taxa sampled, suggesting a single dispersal event from the neotropics to the paleotropics in the history of the subfamily. These results provide a strong basis for improving the classification of Podostemaceae and a framework for future phylogenomic studies of the clade employing data from the nuclear genome.

The Typological Position of The Languages of Nepal: Morphosyntax

We examine the typological position of the languages of Nepal among the languages of the world, considering a broad sample of morphosyntactic features. Following a computational analysis, we find that: most of the languages of Nepal occupy a fringe position; some languages of Nepal lie outside the range of variation of other South Asian languages; and the languages of Nepal show correlations among morphosyntactic features that are not correlated globally.

Unveiling hidden diversity: Phylogenomics of neotomine rodents and taxonomic implications for the genus Peromyscus

Neotomine rodents (Cricetidae, Neotominae) represent one of the most commonly encountered and diverse group of rodents in North America, yet phylogenetic relationships within this group remain uncertain. This subfamily is known for its rapid evolution, adding more complexity to our efforts to unravel their evolutionary history. The main debate revolves around the recognition of the genus Peromyscus as monophyletic or paraphyletic due to its relationship with other genera such as Habromys, Megadontomys, Podomys, Neotomodon, and Osgoodomys. Here, we aim to resolve phylogenetic relationships within Neotominae, to further explore their evolutionary history and taxonomic boundaries. We used target capture and high-throughput sequencing of complete mitogenomes and thousands of genome-wide ultraconserved elements loci (UCEs). Our comprehensive analyses encompassed 53 species of Neotominae spanning 12 previously described genera, along with one yet-undescribed genus. We also investigated 12 out of the 13 species groups within Peromyscus. Our analyses, including Maximum Likelihood and Bayesian Inference with both mitogemomes and UCEs, as well as the coalescent species-tree-based approach with UCEs, consistently recovered concordant and well-resolved phylogenies with high levels of nodal support. We identified seven main clades within Neotominae that could potentially be recognized at the generic level, mostly to categorize the genus Peromyscus as a monophyletic group, including one species group within “Peromyscus”. Furthermore, our divergence dating estimates place the crown age of Neotominae to be around the late Miocene at ca. 7.9 – 10.7 mya. While generic level diversification continued through the Pliocene, species level diversification predominantly occurred during the late Pliocene, extending through the Pleistocene and Holocene. These epochs have been recognized as periods with significant changes in flora and fauna, driving ecological transformations on a global scale. We hypothesized that climatic and vegetation shifts during the Neogene and Quaternary, coupled with geological events, topographical features, and the presence of biogeographical corridors played a pivotal role in the speciation and diversification of Neotominae. Recognizing the importance of generating genomic-scale data coupled with a broad taxonomic sampling, our study, for the first time, offers resolution of the relationships among the main lineages of Neotominae. We expect that the phylogeny presented here will serve as a foundational resource for future systematic and evolutionary studies. This includes facilitating a proper comprehensive taxonomic revision of the group and the formal description and naming of new genera.

Physician perspectives on communication quality in pediatric care.

We aimed to explore physician perspectives on communication quality across pediatric contexts. We conducted semi-structured interviews over a 4-month period. Purposive sampling was conducted to ensure a broad sampling of pediatricians from multiple subspecialties and practice settings. Interviews were conducted until thematic saturation was reached. An interview guide was created based on existing literature. Interviews were transcribed and analyzed for key themes. Eleven pediatricians enrolled in our study. Following thematic analysis, results were organized into four primary themes: Communication Education, High Quality Communication; Low Quality Communication; and Communication Factors and Barriers. Participants prioritized information transfer as a key aspect of communication quality. They identified communication quality as having wellness implications for clinicians. Participants prioritize information transfer and state that clinicians often neglect bidirectional information exchange. Participants often lacked formal communication skills training which may make it difficult to navigate common barriers such as language and cultural differences, lack of time, and interprofessional dysfunction. Formal communication skills training may help overcome challenges and may enhance physician wellness while improving patient care. While the importance of clinician-parent communication in pediatric settings has been established, little is known about provider perceptions of communication quality. Participants identified information transfer as a key aspect of communication quality, often neglecting bidirectional information exchange. Participants often lacked formal communication skills training which may make it difficult to navigate common barriers such as language and cultural differences, lack of time, and interprofessional dysfunction. Formal communication skills training may help with these challenges and may enhance physician wellness while improving patient care. More work is needed to explore the impact of communication skills training on each of these factors.

Examining the Empathy Profiles and Work Outcomes of Trauma Workers

Trauma work involves intervening with others enduring acute pain and suffering, often with heavy psychological and physical health impacts. An important question is whether dispositional empathy helps or hurts trauma workers in their occupational functioning. The current study addresses this gap in the research literature by using a person-centered approach to examine the empathy profiles and professional outcomes of a broad sample of trauma workers ( n = 315). We measured their trait empathy and organizational outcomes (occupational burnout, person-job fit, turnover intentions, job performance), and found three distinct empathy profiles which differed significantly in their occupational functioning. A ‘self-focused’ empathy profile (dominated by high personal distress responding) reported the worst functioning; an ‘other-oriented’ profile (high on perspective taking and empathic concern) had more positive functioning, and an unexpected ‘low reactivity’ profile (a full SD below the general population on empathy facets) showed the lowest exhaustion. Exploratory analyses revealed that first responders (e.g., police, firefighters, EMTs, paramedics) were overrepresented in the ‘low reactivity’ profile, while psychology-related professions (e.g., psychologists, counsellors, social workers) were underrepresented in that profile. The significance of these results, as well as their implications for empathy research and vocational counselling in the field of trauma work, are discussed.

Rapid Evolution of Host Repertoire and Geographic Range in a Young and Diverse Genus of Montane Butterflies.

Evolutionary changes in geographic distribution and larval host plants may promote the rapid diversification of montane insects, but this scenario has been rarely investigated. We studied rapid radiation of the butterfly genus Colias, which has diversified in mountain ecosystems in Eurasia, Africa, and the Americas. Based on a dataset of 150 nuclear protein-coding genetic loci and mitochondrial genomes, we constructed a time-calibrated phylogenetic tree of Colias species with broad taxon sampling. We then inferred their ancestral geographic ranges, historical diversification rates, and the evolution of host use. We found that the most recent common ancestor of Colias was likely geographically widespread and originated ~3.5 Ma. The group subsequently diversified in different regions across the world, often in tandem with geographic expansion events. No aspect of elevation was found to have a direct effect on diversification. The genus underwent a burst of diversification soon after the divergence of the Neotropical lineage, followed by an exponential decline in diversification rate toward the present. The ancestral host repertoire included the legume genera Astragalus and Trifolium but later expanded to include a wide range of Fabaceae genera and plants in more distantly related families, punctuated with periods of host range expansion and contraction. We suggest that the widespread distribution of the ancestor of all extant Colias lineages set the stage for diversification by isolation of populations that locally adapted to the various different environments they encountered, including different host plants. In this scenario, elevation is not the main driver but might have accelerated diversification by isolating populations.

Structural, morphological and Magnetic studies of Soft magnetic Fe-Si-B Metallic Glass ribbons

Abstract A comparative study of two metallic glass ribbons produced by two different industries namely M/s Honeywell corporation, U.S.A., and M/s Vijay electricals. The potential of different experimental techniques like XRD, SEM and EDAX and VSM has been carried out for two soft metallic glass ribbons. XRD studies reveal that for sample A has two broad peaks and sample B shows the absence of any sharp peaks indicating crystalline secondary phases are <5%. Morphological studies show that sample A has homogeneous matrix whereas sample B has crystallites of varied shapes and sizes distributed in the range of 5-40 μm. EDAX for both the samples A and B was done to investigate the compositional elements. VSM measurements reveals sample B to exhibit a relatively larger anisotropy compared to sample A.

Species Diversity, Host Association, and Evolutionary History of Cronartium: An Important Global Fungal Pathogen to Trees.

Pine stem rust, the most damaging and widespread forest disease occurring in pine trees in the Northern Hemisphere, is primarily caused by Cronartium species (Pucciniales, Melampsorineae). While the phylogenetic relationships of major Cronartium species have been largely elucidated, there is limited understanding of their species diversity and the evolutionary processes shaping their distribution patterns. In this work, we performed broad sampling and sequencing of Cronartium taxa in China together with additional sequence data and other accessions in NCBI to investigate the diversification and to estimate the divergence time of major evolutionary events in this genus. Molecular dating analysis suggested that the divergence of the genus Cronartium probably was around 91.78 Ma during the Upper Cretaceous. It is believed that Cronartium species may have originated in Asia and North America, with intercontinental dispersals occurring primarily during the Middle Eocene, Middle Miocene, and Pliocene. These dispersal events likely took place through the North Atlantic Land Bridge, the De Geer Route, and the Bering Land Bridge, and subsequently diverged through sporadic dispersal and vicariance events. Furthermore, our analysis of host associations revealed that the diversification of Cronartium species was correlated with their telial-hosts, and some species may have experienced host jump events, indicating a complex interplay between host specificity and pathogen-host interaction during Cronartium evolution.

Anti-Intellectualism Attitude and Reading Self-Efficacy of Undergraduate Students in a State University in the Philippines

This quantitative study utilized a descriptive-correlational research design to explore the relationship between anti-intellectualism attitudes and reading self-efficacy among first-year undergraduate students at a state university in the Philippines. A sample of 140 students was selected using simple random sampling. Data were collected through the Students’ Anti-Intellectualism Scale (SAIS) and a reading self-efficacy scale. The results, analyzed using mean scores, indicate a “neutral” overall anti-intellectualism attitude and a “somewhat fair” level of reading self-efficacy among the students. Results, analyzed using Pearson’s correlation coefficient, revealed a weak positive relationship between anti-intellectualism attitudes and reading self-efficacy (correlation coefficient = 0.296), indicating a significant relationship. This finding suggests that students with higher anti-intellectualism attitudes also exhibit higher reading self-efficacy. These findings offer valuable insights for educators, highlighting the importance of addressing anti-intellectualism in pedagogical practices. However, the study's limitations include the sample size, which restricts generalizability. Future research should consider broader samples or different educational levels to confirm these results.

Identifying Reproducible Transcription Regulator Coexpression Patterns with Single Cell Transcriptomics.

The proliferation of single cell transcriptomics has potentiated our ability to unveil patterns that reflect dynamic cellular processes, rather than cell type compositional effects that emerge from bulk tissue samples. In this study, we leverage a broad collection of single cell RNA-seq data to identify the gene partners whose expression is most coordinated with each human and mouse transcription regulator (TR). We assembled 120 human and 103 mouse scRNA-seq datasets from the literature (>28 million cells), constructing a single cell coexpression network for each. We aimed to understand the consistency of TR coexpression profiles across a broad sampling of biological contexts, rather than examine the preservation of context-specific signals. Our workflow therefore explicitly prioritizes the patterns that are most reproducible across cell types. Towards this goal, we characterize the similarity of each TR's coexpression within and across species. We create single cell coexpression rankings for each TR, demonstrating that this aggregated information recovers literature curated targets on par with ChIP-seq data. We then combine the coexpression and ChIP-seq information to identify candidate regulatory interactions supported across methods and species. Finally, we highlight interactions for the important neural TR ASCL1 to demonstrate how our compiled information can be adopted for community use.

The Relationship Between EBIT/Total Revenue and Annual Returns: A Study of Leading Technology Companies

This study examines the relationship between Earnings Before Interest and Taxes (EBIT)/Total Revenue and annual returns for four leading technology companies: Amazon (AMZN), Alibaba (BABA), Google (GOOG), and Baidu (BIDU). Using data from Yahoo Finance from 2018 to 2022 and applying regression analysis, the study finds a significant positive relationship between EBIT/Total Revenue ratios and annual returns. This suggests that higher EBIT/Total Revenue ratios may be associated with better annual returns. However, limitations include a narrow sample size and time frame, which may affect the generalizability of the results. Future research should consider a broader sample and longer time periods.

Breaking barriers: Analysing the professional landscape for female gynaecological surgeons in Italy

ObjectiveTo examine the status of female gynaecological surgeons in Italy in terms of discriminatory practices and the availability of opportunities for improvement within the operating theatre. MethodsThis study is a subanalysis of a comprehensive 83-item questionnaire, administered to 3242 female surgeons across various specialties from 1 November to 31 December 2020. This study focuses specifically on 219 female gynaecological surgeons in order to explore their unique experiences and challenges in surgical practice. Main outcome measuresData concerning subjective satisfaction of respondents were collected. Satisfaction was evaluated using a five-point Likert scale. Data are presented using mean, median or frequency. ResultsThis subanalysis included 207 respondents. Among the respondents, 47 % reported that they had children, while 31 % had decided not to have children for professional reasons. Nearly half of the respondents (42 %) were trainees. Despite a considerable workload (mean working week of 45 h), 96 % of the respondents reported spending less than half of their working time in the operating theatre. They performed a median of two operations per week, compared with five operations for their male counterparts. Despite challenges, 65 % expressed a commitment to their career path. ConclusionsEfforts to address gender bias, promote work–life balance, and enhance female leadership representation are essential. These findings emphasize the need for systemic changes to create a supportive environment for female gynaecologists. Further research with broader sampling is warranted to fully understand and address these challenges.

The osteohistology of Orthosuchus stormbergi using synchrotron radiation microcomputed tomography.

Orthosuchus stormbergi was a small-bodied crocodyliform, representative of a diverse assemblage of Early Jurassic, early branching crocodylomorph taxa from the upper Elliot Formation of South Africa. The life history of these early branching taxa remains poorly understood, with only sparse investigations into their osteohistology, yet species like Orthosuchus have potential to inform about the macroevolution of growth strategies on the stem leading to crown crocodilians. In order to elucidate the growth patterns of Orthosuchus, we used propagation phase contrast X-ray synchrotron micro-computed tomography to virtually image the osteohistology of the postcrania of two specimens, including multiple elements from the type (SAM-PK-K409), and the femur of a referred specimen (BP/1/4242). In total, we scanned nine mid-diaphyseal sections of the humerus, radius, ulna, radiale, femur, tibia, fibula, and a rib. We then compared our results to osteohistological sections of crocodylomorph taxa from the published literature. Our results show that the most predominant bone tissue type in Orthosuchus is lamellar, with a few patches of woven and parallel-fibred bone. The type specimen contains four to five lines of arrested growth and the hindlimb elements present outer circumferential lamellae, whereas the referred specimen contains six to seven. Both specimens grew at similar rates, reaching adult skeletal body size at year four or five. The sectioned bones, most notably the radius and ulna, are comparatively thick walled and compact. Our virtual osteohistological sections are one of the first for an early branching crocodyliform, and the broad sample of skeletal elements makes Orthosuchus a key anchor point for understanding the plesiomorphic life history traits of the clade.

An integrative taxonomic revision of the Chaerophyllum hirsutum complex (Apiaceae) using morphological and molecular markers

Background and aims – Chaerophyllum hirsutum represents a complex of taxa with varying treatments and ranks across floras. Using both morphometric and molecular markers, we assessed the robustness of C. hirsutum, C. elegans, C. villarsii, and C. villarsii var. cicutariiforme. Material and methods – Ten morphometric variables and two ratios were calculated. Based on the sequencing of six plastomes, the rps16 intron was selected as the more variable region and sequenced on a broader sampling. Additionally, we also sequenced the nrDNA internal transcribed spacer 2 (ITS2) using Illumina technology to obtain intra-individual allelic diversity. Key results – Morphologically, the most easily differentiated taxon was C. elegans, especially using the number of subterminal umbels. The distinction between C. hirsutum and C. villarsii was rather clinal, but is mainly based on the degree of carpophore division. Finally, C. villarsii var. cicutariiforme was less easily distinguishable from the three others, but partly using the carpophore length and the total length of basal leaf blade. The cpDNArps16 clearly distinguished C. elegans from the three other taxa of the complex, which rather showed a geographical pattern of cpDNA diversity. The nrDNA ITS2 partially distinguished C. villarsii from the other taxa, without distinction of C. elegans. Conclusions – The present study supports the species differentiation of C. elegans based on both morphology and chloroplast genome. Furthermore, C. villarsii var. villarsii and C. villarsii var. cicutariiforme could potentially be recognized as distinct varieties within C. hirsutum. This will need to be confirmed by future studies using a larger sampling size and more comprehensive markers, covering a broader portion of the nuclear genome.

Child and adolescent sleep disturbances and psychopathology in a mental health clinic sample

IntroductionChildren and adolescents treated in specialty mental health services are more likely to have sleep disturbances than those without mental health problems. Few studies have investigated the relationship between sleep and psychopathology in broad clinical samples of children. We examined the relationship between sleep disturbance and age on internalizing and externalizing psychopathology in a sample who sought treatment at children's mental health centers.MethodsSecondary data analyses were completed on a sample of children (N = 13,472; aged 4 to 18; 55% male) from 39 children's mental health agencies in Ontario, Canada, who completed a semi-structured assessment, the interRAI Children and Youth Mental Health (ChYMH). A split-half sample approach was utilized (S1 n = 6,773, S2 n = 6,699). Hierarchical regressions examined the effects of sleep disturbances (i.e., difficulty falling asleep, staying asleep, night waking, bedtime resistance, falling asleep during the day) on internalizing and externalizing symptoms, above and beyond established child- (i.e., age, sex, sensory sensitivity, pain) and family-level variables (family functioning, caregiver distress, parenting strengths). Age was tested as a moderator for sleep disturbances on both outcome variables.ResultsOverall, 6.7% of children had clinically significant sleep disturbance scores (≥10 out of 16) on the interRAI ChYMH. In both samples, sleep disturbances predicted internalizing (S1 ΔR2 = 10%, S2 ΔR2 = 10%) and externalizing symptoms (S1 ΔR2 = 2%, S2 ΔR2 = 1%), above and beyond child and family variables. Age moderated the relationship between sleep disturbances and internalizing symptoms (S1 ß = 0.07; S2 ß = 0.07; ΔR2 = 0.004 in both samples), but not externalizing symptoms; sleep disturbance was more strongly related to internalizing symptoms amongst adolescents (ß = 0.98) than children (ß = 0.62).DiscussionThe relationship between sleep and internalizing symptoms appears to change as children move through development. Further, sleep was a stronger predictor of internalizing problems in adolescents than children, suggesting an additional focus of clinician efforts in this age group. These findings strengthen the importance of routine assessment of sleep, as is done with the interRAI ChYMH.