Prehospital Massive Transfusion for Resuscitation of an Entrapped Patient in a Rural Setting: A Case Report.

Resuscitation of injured patients suffering from hemorrhagic shock with blood products in the prehospital environment is becoming more commonplace. However, blood product utilization is typically restricted and can be exhausted in the event of a prolonged entrapment. Delivery of large amounts of blood products to a scene is rare, particularly in rural settings. We present the case of a 26-year-old male who was entrapped in a motor vehicle for 144 min. First responders assessed the entrapped patient to be in hemorrhagic shock from lower extremities injuries. The Helicopter Emergency Medical Services team exhausted their supply of blood products shortly after arrival on scene. The local trauma center's Surgical Emergency Response Team (SERT) was requested to the scene. The preplanned response included seven units of blood components to provide massive transfusion at the point of injury and released directly to field responders by the blood bank. During extrication, the patient was given two units of packed red blood cells by initial responders with three more units of blood components from the SERT supply. During transfer to the hospital, the patient received an additional three units, and four units were transfused on initial trauma resuscitation in the hospital. He was found to have severe lower extremities injuries as the cause of his hemorrhage. The patient survived to hospital discharge. Delivery of large volumes of blood products to an entrapped patient with prolonged extrication time may be a lifesaving intervention. We advocate for integration of blood bank services and on scene physician guided resuscitation for prolonged extrications.

Insights from an updated personnel selection meta-analytic matrix: Revisiting general mental ability tests' role in the validity-diversity trade-off.

General mental ability (GMA) tests have long been at the heart of the validity-diversity trade-off, with conventional wisdom being that reducing their weight in personnel selection can improve adverse impact, but that this results in steep costs to criterion-related validity. However, Sackett et al. (2022) revealed that the criterion-related validity of GMA tests has been considerably overestimated due to inappropriate range restriction corrections. Thus, we revisit the role of GMA tests in the validity-diversity trade-off using an updated meta-analytic correlation matrix of the relationships six selection methods (biodata, GMA tests, conscientiousness tests, structured interviews, integrity tests, and situational judgment tests) have with job performance, along with their Black-White mean differences. Our results lead to the conclusion that excluding GMA tests generally has little to no effect on validity, but substantially decreases adverse impact. Contrary to popular belief, GMA tests are not a driving factor in the validity-diversity trade-off. This does not fully resolve the validity-diversity trade-off, though: Our results show there is still some validity reduction required to get to an adverse impact ratio of .80, although the validity reduction is less than previously thought. Instead, it shows that the validity-diversity trade-off conversation should shift from the role of GMA tests to that of other selection methods. The present study also addresses which selection methods now emerge as most valid and whether composites of selection methods can result in validities similar to those expected prior to Sackett et al. (2022). (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Everyday amnesia: Residual memory for high confidence misses and implications for decision models of recognition.

Despite studying a list of items only minutes earlier, when reencountered in a recognition memory test, undergraduate participants often say with total confidence that they have not studied some of the items before. Such high confidence miss (HCM) responses have been taken as evidence of rapid and complete forgetting and of everyday amnesia (Roediger & Tekin, 2020). We investigated (a) if memory for HCMs is completely lost or whether a residual memory effect exists and (b) whether dominant decision models predict the effect. Participants studied faces (Experiments 1a, 2, and 3) or words (Experiment 1b), then completed a single-item recognition memory task, followed by either (a) a two-alternative forced-choice recognition task, in which the studied and nonstudied alternatives on each trial were matched for their previous old/new decision and confidence rating (Experiments 1 and 2) or (b) a second single-item recognition task in which the targets and foils were HCMs and high confidence correct rejections, respectively (Experiment 3). In each experiment, participants reliably distinguished HCMs from high-confidence correct rejections. The unequal variance signal detection and dual-process signal detection models were fit to the single-item recognition data, and the parameter estimates were used to predict the memory effect for HCMs. The dual-process signal detection model predicted the residual memory effect (as did another popular model, the mixture signal detection theory model). However, the unequal variance signal detection model incorrectly predicted a negative, or no, effect, invalidating this model. The residual memory effect for HCMs demonstrates that everyday amnesia is not associated with complete memory loss and distinguishes between decision models. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The role of self-interest in unethical pro-organizational behavior: A nomological network meta-analysis.

To date, the unethical pro-organizational behavior (UPB) literature has been guided by a prosocial perspective, which argues that people engage in UPB primarily to benefit the employers with whom they identify and have a positive social exchange. According to this perspective, employees who are characteristically self-interested are less likely to engage in UPB. However, recent evidence suggests self-interest may play a larger role in motivating UPB than originally theorized. To clarify this controversy, we offer two different, but not necessarily mutually exclusive, perspectives of UPB-one in which UPB is driven primarily by prosocial motives and one in which it is driven primarily by self-interest. We tested which of these accounts of UPB was more strongly supported by comparing UPB's relationships with two nomological networks: one containing relatively prosocially motivated constructs and the other containing relatively self-interest-motivated constructs. Two of the eight hypotheses from the prosocial perspective were supported, while seven of the eight hypotheses from the self-interest perspective were supported. Additionally, the average absolute value of UPB's correlations with prosocial perspective constructs was .09, while the comparable average correlation with self-interest perspective constructs was .33. Thus, the results favored the self-interest perspective. We discuss how these findings change our theoretical understanding of UPB by acknowledging both its prosocial and self-interest motivations, and we accordingly propose a revised definition for UPB that allows for both of these motivations. We also examined more broadly the relationship between UPB and other constructs to provide a comprehensive meta-analytic overview of this literature. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Correcting for range restriction in meta-analysis: A reply to Oh et al. (2023).

Oh et al. (2023) question a number of choices made in our article (Sackett et al., 2022); here we respond. They interpret our article as recommending against correcting for range restriction in general in concurrent validation studies; yet, we emphasize that we endorse correction when one has access to the information needed to do so. Our focus was on making range restriction corrections when conducting meta-analyses, where it is common for primary studies to be silent as to the prior basis for selection of the employees later participating in the concurrent validation study. As such, the applicant pool information needed for correction is typically not available. Sackett et al. (2022) highlighted that in many situations, range restriction will be small; so, the inability to correct for it results in only a modest underestimate of validity. Oh et al. mention settings that would result in substantial range restriction; here, we present our rationale as to why we view such settings as uncommon rather than as making up the bulk of the studies contributing to meta-analyses. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Too good to be true? Are supervisor-perspective ratings a valid substitute for actual supervisor ratings?

Due to well-known problems with self-ratings of job performance (e.g., inflation, weak correlation with supervisor ratings) and the challenges of collecting supervisor ratings of job performance, researchers sometimes use supervisor-perspective ratings (e.g., "how do you think your supervisor would rate your job performance?") instead. The assumption is supervisor-perspective ratings are less affected by the noted issues with self-ratings and therefore are more similar to actual supervisor ratings than traditional self-ratings. In fact, a considerable number of researchers have used supervisor-perspective ratings as an alternative to actual supervisor ratings. The purpose of this study is to meta-analytically determine the degree to which supervisor-perspective ratings are a valid substitute for actual supervisor ratings and identify the boundary conditions for this substitution. Our meta-analyses demonstrate that supervisor-perspective ratings are generally not a viable substitute for actual supervisor ratings. This is especially the case when (a) citizenship performance is measured, (b) data are collected in collectivistic cultures, and (c) all study data are gathered from the same source. We recommend not using supervisor-perspective ratings as a substitute for actual supervisor ratings. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Challenging conclusions about predictive bias against Hispanic test takers in personnel selection.

Berry et al. (2020) noted that predictive bias is a function of three factors: subgroup mean difference on the predictor (dx), subgroup mean difference on the criterion (dy), and test validity (rxy). They used meta-analytic estimates of each of these three to examine predictive bias against Hispanic test takers when cognitive tests are used in personnel selection. They found that tests underpredict Hispanic job performance by an average of .21 SDs, which would call into question the fairness of cognitive test use in personnel selection. We located 119 studies in which all three parameters-dy, dx, and rxy-could be obtained, thus holding sample, setting, and operationalization constant in estimating the three parameters within each study. This produced a substantially different conclusion: We find that tests overpredict Hispanic performance by .04-.20 SDs, depending on assumptions made about artifact corrections. Factors contributing to differences between the two studies include differences in range restriction corrections, sample incomparability, and Berry et al.'s use of rxy estimated from the total sample rather than within the majority subgroup. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Does variability in recognition memory scale with mean memory strength or encoding variability in the UVSD model?

The unequal variance signal detection (UVSD) model of recognition memory assumes that the variance of old item memory strength (σo) is typically greater than that of new items. It has been suggested that this old item variance effect can be explained by the encoding variability hypothesis. However, Spanton and Berry (2020) failed to find evidence for this account, suggesting that σo may simply scale with mean memory strength (d) in the UVSD model. Experiments 1 and 2 examined the effects of encoding variability and strength scaling on old item variance by creating conditions in which mean memory strength and variability in item characteristics was either low or high in 2 × 2 factorial designs. In Experiment 1, overall strength determined estimates of σo, with no effect of item characteristic variability. The same effect of overall strength was found in Experiment 2; there was also a significant effect of item characteristic variability, although this manipulation also had some effect on d and was therefore partially confounded. Experiment 3 similarly found a simultaneous increase in old item variance and memory strength in a design using mixed item characteristic variability conditions in a single-study/test block. We conclude that old item variance increases with mean memory strength in the UVSD model, with uncertainty about the effects of encoding variability, and that future explanations of the old item variance effect should bear this in mind.

A matter of when, not whether: A meta-analysis of modesty bias in East Asian self-ratings of job performance.

Much attention has been paid to the question of whether there is a modesty bias in East Asian employees' self-ratings of job performance (i.e., a tendency to self-rate their performance lower than supervisors rate it). However, empirical results are conflicting, with some studies supporting the modesty bias and others not supporting it. We suggest that moderators representing boundary conditions for the modesty bias effect may shed light on these conflicting results. In essence, the question should not be "whether there is a modesty bias," but rather "when is there a modesty bias?" We propose three moderators: purpose of the ratings (administrative, developmental, or research), job performance dimension (task performance, organizational citizenship behavior, or leadership), and country-level in-group collectivism. Based on 40 studies (63 independent samples) with samples from East Asia (mainland China, Japan, South Korea, and Taiwan), we found no evidence of a modesty bias. That is, East Asian employees' self-ratings were, on average, higher than supervisor-ratings of job performance (i.e., a leniency bias). The one exception was when ratings were collected for research purposes; in this case, there was, on average, no mean difference between self- and supervisor-ratings. Thus, East Asian employees' research-purpose self-ratings are more modest, but this does not cross into a "modesty bias." In all, our results do not support a modesty bias as a widespread cultural norm among East Asian employees. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

A critical examination and meta-analysis of the distinction between the dominance and antiegalitarianism facets of social dominance orientation.

Social dominance orientation (SDO) holds a central position in social dominance theory. Since the development, validation, and publication of the SDO7 scale in 2015, which was designed to distinguish between the dominance (SDO-D) and (anti-)egalitarianism (SDO-E) facets of SDO, it has become common in the literature to distinguish between these facets using the SDO7. This is based on the theoretical proposition that SDO-D and SDO-E meaningfully differ and have different relationships with other constructs. However, the present study critically reviews the original validity evidence provided for the SDO7's distinction between SDO-D and SDO-E and notes conceptual and empirical reasons to question this distinction. Because a sizable number of studies have used the SDO7 since the presentation of that original validity evidence, the present study uses meta-analysis to leverage this burgeoning literature to determine whether there has since been more convincing empirical evidence for the distinction between these facets. The meta-analysis finds that SDO-D and SDO-E have a magnitude of intercorrelation that would often be considered adequate for a reliability coefficient (mean ρ = .83), have extremely similar patterns and magnitudes of relationships with the variables in their nomological network, and have nearly identical means and standard deviations. Although the SDO7 is a useful, reliable, and valid measure of overall SDO, its use to distinguish between SDO-D and SDO-E is not empirically supported. The present meta-analysis also provides insights into the nomological network of SDO-D, SDO-E, and overall SDO and the distributional characteristics of study participants' SDO scale scores. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Prehospital portable ultrasound for safe and accurate prehospital needle thoracostomy: a pilot educational study.

BACKGROUND: Simulated needle thoracostomy (NT) using ultrasound may reduce potential injury, increase accuracy, and be as rapid to perform as the traditional landmark technique following a brief educational session. Our objective was to determine if the use of an educational session demonstrating the use of handheld ultrasound to Emergency Medical Services (EMS) staff to facilitate NT was both feasible, and an effective way of increasing the safety and efficacy of this procedure for rural EMS providers. METHODS: A pre/post-educational intervention on a convenience sample of rural North American EMS paramedics and nurses. Measurement of location and estimated depth of placement of needle thoracostomy with traditional landmark technique was completed and then repeated using handheld ultrasound following a training session on thoracic ultrasound and correct placement of NT. RESULTS: A total of 30 EMS practitioners participated. Seven were female (23.3%). There was a higher frequency of dangerous structures underlying the chosen location with the landmark technique 9/60 (15%) compared to the ultrasound technique 1/60 (1.7%) (p = 0.08). Mean time-to-site-selection for the landmark technique was shorter than the ultrasound technique at 10.7 s (range 3.35-45 s) vs. 19.9 s (range 7.8-50 s), respectively (p < 0.001). There was a lower proportion of correct location selection for the landmark technique 40/60 (66.7%) when compared to the ultrasound technique 51/60 (85%) (p = 0.019). With ultrasound, there was less variance between the estimated and measured depth of the pleural space with a mean difference of 0.033 cm (range 0-0.5 cm) when ultrasound was used as compared to a mean difference of 1.0375 cm (range 0-6 cm) for the landmark technique (95% CI for the difference 0.73-1.27 cm; p < 0.001). CONCLUSIONS: Teaching ultrasound NT was feasible in our cohort. While time-to-site-selection for ultrasound-guided NT took longer than the landmark technique, it increased safe and accurate simulated NT placement with fewer identified potential iatrogenic injuries.

The effect of mission duration on LISA science objectives.

The science objectives of the LISA mission have been defined under the implicit assumption of a 4-years continuous data stream. Based on the performance of LISA Pathfinder, it is now expected that LISA will have a duty cycle of ≈ 0.75 , which would reduce the effective span of usable data to 3 years. This paper reports the results of a study by the LISA Science Group, which was charged with assessing the additional science return of increasing the mission lifetime. We explore various observational scenarios to assess the impact of mission duration on the main science objectives of the mission. We find that the science investigations most affected by mission duration concern the search for seed black holes at cosmic dawn, as well as the study of stellar-origin black holes and of their formation channels via multi-band and multi-messenger observations. We conclude that an extension to 6 years of mission operations is recommended.

An Examination of Perceptions of Similarity to Cigarettes, Health Risk Perceptions, and Willingness to Try Across Nicotine Vaping Products.

INTRODUCTION: This brief report examines how e-cigarette form affects perceptions of cigarette similarity, health risk evaluations, and willingness to try the product. The mediating roles of product form similarity to combustible cigarettes and perceived health risk across vapers and non-vapers are also assessed. AIMS AND METHODS: A between-subjects experiment examines the effects of four product forms (a cigalike, a vape pen, a tank, and a pod/Juul) for 443 nonsmokers who are either current vapers or non-vapers. Multi-item measures are used to assess the mediating and outcome-dependent measures. RESULTS: Results show that the product form affects similarity, and there are differences between vapers and non-vapers for all outcomes. Moderated mediation results show that (1) form similarity mediates the effects on health perceptions and differs between vapers and non-vapers and (2) there are serial mediation effects of form on willingness to try the different products. CONCLUSIONS: Electronic nicotine delivery systems product form matters. Similarity to combustible cigarettes influences health risk perceptions, and, in turn, there are effects on willingness to try the product. There are differences in mediation effects across current vapers and non-vapers. These results contribute to understanding reasons why the public health community should monitor and consider how manipulations in product form can affect and reduce health risk perceptions. IMPLICATIONS: Electronic nicotine delivery systems have evolved since their introduction to the market and are now comprised of product types that vary substantially in design and appearance. By changing form and reducing resemblance to cigarettes, these differences in product form are shown to have downstream consequences on health risk perceptions and willingness to try the product. The public health community needs to consider unconventional ways in which companies may reduce risk perceptions of youthful users and nonusers, even when there are no objective differences in risk across product types.

Low tropical diversity during the adaptive radiation of early land plants.

The latitudinal biodiversity gradient, with tropical regions acting as 'evolutionary cradles', is a cornerstone of current biogeographical and ecological theory1. In the modern world floral biodiversity and biomass are overwhelmingly concentrated in the tropics, and it is often assumed that the tropics were evolutionary cradles throughout land plant evolutionary history. For example, the origination and diversification of angiosperms is believed to have taken place in the Cretaceous tropics2 and modern gymnosperms in the Permian tropics3. Here, we show that during the first major diversification of land plants, in the Late Silurian-Early Devonian, land plant biodiversity was much lower at the equator compared to medium-high southern latitudes. Throughout this crucial interval of plant evolution, tropical vegetation remained depauperate and of very low taxonomic biodiversity, although with similar morphological disparity to the more diverse higher latitude floras. Possible explanations for this low tropical floral biodiversity include palaeocontinental configuration or adverse palaeotropical environmental conditions. We discount the possibility that it was simply a fortuitous feature of the biogeographical spread of the earliest vascular land plants.

Revisiting meta-analytic estimates of validity in personnel selection: Addressing systematic overcorrection for restriction of range.

This paper systematically revisits prior meta-analytic conclusions about the criterion-related validity of personnel selection procedures, and particularly the effect of range restriction corrections on those validity estimates. Corrections for range restriction in meta-analyses of predictor-criterion relationships in personnel selection contexts typically involve the use of an artifact distribution. After outlining and critiquing five approaches that have commonly been used to create and apply range restriction artifact distributions, we conclude that each has significant issues that often result in substantial overcorrection and that therefore the validity of many selection procedures for predicting job performance has been substantially overestimated. Revisiting prior meta-analytic conclusions produces revised validity estimates. Key findings are that most of the same selection procedures that ranked high in prior summaries remain high in rank, but with mean validity estimates reduced by .10-.20 points. Structured interviews emerged as the top-ranked selection procedure. We also pair validity estimates with information about mean Black-White subgroup differences per selection procedure, providing information about validity-diversity tradeoffs. We conclude that our selection procedures remain useful, but selection predictor-criterion relationships are considerably lower than previously thought. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range.

Since 2015 the gravitational-wave observations of LIGO and Virgo have transformed our understanding of compact-object binaries. In the years to come, ground-based gravitational-wave observatories such as LIGO, Virgo, and their successors will increase in sensitivity, discovering thousands of stellar-mass binaries. In the 2030s, the space-based LISA will provide gravitational-wave observations of massive black holes binaries. Between the ∼ 10 -103 Hz band of ground-based observatories and the ∼ 1 0 - 4 -10- 1 Hz band of LISA lies the uncharted decihertz gravitational-wave band. We propose a Decihertz Observatory to study this frequency range, and to complement observations made by other detectors. Decihertz observatories are well suited to observation of intermediate-mass ( ∼ 1 0 2 -104 M ⊙) black holes; they will be able to detect stellar-mass binaries days to years before they merge, providing early warning of nearby binary neutron star mergers and measurements of the eccentricity of binary black holes, and they will enable new tests of general relativity and the Standard Model of particle physics. Here we summarise how a Decihertz Observatory could provide unique insights into how black holes form and evolve across cosmic time, improve prospects for both multimessenger astronomy and multiband gravitational-wave astronomy, and enable new probes of gravity, particle physics and cosmology.

EMS agencies with high rates of field termination of resuscitation and longer scene times also have high rates of survival.

AIM: Out-of-hospital cardiac arrest (OOHCA) management dichotomizes strategies to (1) "scoop-and-run" to a higher level of care or (2) "treat on the X" with the goal of return of spontaneous circulation (ROSC) before transport, with field termination of resuscitation (FTOR) of unsuccessful resuscitations. We hypothesized that EMS agencies with greater average time on-scene and higher rates of field termination of resuscitation would have more favorable outcomes. METHODS: The Cardiac Arrest Registry to Enhance Survival (CARES) was used to identify OOHCA cases from 2013 to 2018. Agencies in the top and bottom quartiles of on-scene time were categorized as high (HiOST) and low (LoOST); in the top and bottom quartiles of field termination rate were categorized as high (HiTOR) and low (LoTOR). Generalized estimating equation models compared top and bottom quartiles. RESULTS: We classified 95 agencies as HiOST (average > 25.1 min) or LoOST (average < 19.3 min). We classified 95 agencies as HiTOR (average > 46.5% FTOR) or LoTOR (average < 23.5% FTOR). Controlling for agency characteristics, HiOST had a higher survival to discharge for transported patients (28.1% vs 23.1%, OR = 2.8, 95 %CI 2.1-3.6, p < 0.001), ROSC on emergency department arrival, and favorable neurologic outcome than LoOST. HiTOR had a higher survival to discharge for transported patients (25.6% vs 19.3%, OR = 3.3, 95 %CI 2.5-4.4, p < 0.001), ROSC on emergency department arrival, and favorable neurologic outcome than LoTOR. CONCLUSION: EMS agencies with higher rates of FTOR and longer on-scene times for patients with OOHCA have higher overall patient survival, ROSC, and favorable neurologic function.

Helicopter Emergency Medical Services Transport of COVID-19 Patients in the "First Wave": A National Survey.

Study objectives Helicopter emergency medical services (HEMS) providers have had to adjust to transporting patients with a novel, highly infectious pathogen. This study describes how HEMS organizations in the USA approached the coronavirus disease 2019 (COVID-19) pandemic in its first wave. Methods A survey was distributed via REDCap™ to HEMS organizations in May of 2020 using a national database. Data were collected regarding agency demographics and COVID-19 practices, including education, risk assessment, protective measures, equipment use, and decontamination practices. These were analyzed for qualitative observations and program attributes for COVID transport. Results A total of 68/287 (24%) organizations responded and completed the survey. Eighty-five percent (85%) of responding programs reported that they chose to transport known or suspected COVID-19 patients by air medical transport. Of responding programs, 93% provided education to their providers regarding COVID-19 and 100% conducted a COVID-19 risk analysis for patient transports. Of agencies transporting known or suspected COVID-19 patients, 77% required the use of N95 filtering facepiece respirators (N95) or powered air-purifying respirators (PAPR) for crewmembers during known or suspected COVID-19 patient transfers and 95% provided N95 respirators for pilots during transport. Five percent of responding programs utilized portable negative pressure isolation units. For COVID-19 transporting and non-transporting agencies, when transporting non-COVID-19 known or suspected patients, personal protective equipment (PPE) practice varied but tended to be more relaxed. Some services separated pilots from providers even during downtime (29%). Among services transporting known or suspected COVID-19 patients, the most common decontamination practice was manual wipe-down of all surfaces for a downtime of less than two hours. Conclusion The majority of survey respondents report that their programs chose to transport patients with known or suspected COVID-19 by air medical transport. However, there was high variability in practices regarding the transport of known or suspected COVID-19 as well as that of non-COVID-19 known or suspected patients by air during the initial outbreak of the pandemic. The HEMS industry may benefit from further research and standardization of airborne highly infectious disease transport practices in preparation for the next respiratory virus pandemic.

Explaining the association between repetition priming and source memory: No evidence for a contribution of recognition or fluency.

In a conjoint memory task (measuring repetition priming, recognition memory, and source memory), items recognised as previously studied and receiving correct source decisions also tend to show a greater magnitude of the repetition priming effect. These associations have been explained as arising from a single memory system or signal, rather than multiple distinct ones. In the present work, we examine whether the association between priming and source memory can alternatively be explained as being driven by recognition or fluency. We first reproduced the basic priming-source association (Experiment 1). In Experiments 2 and 3, we found that the association persisted even when the task was modified so that overt and covert recognition judgements were precluded. In Experiment 4, the association was again present even though fluency (as measured by identification response time) could not influence the source decision, although the association was notably weaker. These findings suggest that the association between priming and source memory is not attributable to a contribution of recognition or fluency; instead, the findings are consistent with a single-system account in which a common memory signal drives responding.