Two-factor Model Research Articles

Psychometric Evaluation of the Insomnia Severity Index in Nurses

ABSTRACT Objectives Examine psychometric properties of the Insomnia Severity Index (ISI) in a sample of nurses. Method In a sample of day shift nurses (N = 289), a confirmatory factor analysis (CFA), convergent and discriminant validity analyses, and a test–retest reliability analysis were performed. Results CFA showed that a two-factor model provided the best fit. The ISI had moderate to poor convergent validity with sleep diary parameters, and moderate convergent validity with the Sleep Condition Indicator (r = -.66), Pittsburgh Sleep Quality Index (r = .66), and PROMIS Sleep-Related Impairment measure (r = .67). The ISI demonstrated good discriminant validity with the measures Composite Scale of Morningness (r = −.27), Nightmares Disorder Index (r = .25), PTSD Checklist for DSM-5 (sleep items removed; r = .32), and Perceived Stress Scale (r = .43). The ISI had weaker discriminant validity with the PHQ-9 (r = .69) and Generalized Anxiety Disorder Screener (r = .51). The ISI demonstrated a good test–retest reliability (ICCs = .74–.88). Conclusions The ISI is a psychometrically strong measure for the assessment of insomnia severity in day shift nurses. Overlap with psychological symptoms, primarily anxiety and depression, suggests caution while interpreting these constructs.

Chemo-Phosphoproteomic Profiling with ATR Inhibitors Berzosertib and Gartisertib Uncovers New Biomarkers and DNA Damage Response Regulators

The ATR kinase protects cells against DNA damage and replication stress and represents a promising anti-cancer drug target. The ATR inhibitors (ATRi) berzosertib and gartisertib are both in clinical trials for the treatment of advanced solid tumors as monotherapy or in combination with genotoxic agents. We carried out quantitative phospho-proteomic screening for ATR biomarkers that are highly sensitive to berzosertib and gartisertib, using an optimized mass spectrometry pipeline. Screening identified a range of novel ATR-dependent phosphorylation events, which were grouped into three broad classes: (i) targets whose phosphorylation is highly sensitive to ATRi and which could be the next generation of ATR biomarkers; (ii) proteins with known genome maintenance roles not previously known to be regulated by ATR; (iii) novel targets whose cellular roles are unclear. Class iii targets represent candidate DNA damage response proteins and, with this in mind, proteins in this class were subjected to secondary screening for recruitment to DNA damage sites. We show that one of the proteins recruited, SCAF1, interacts with RNAPII in a phospho-dependent manner and recruitment requires PARP activity and interaction with RNAPII. We also show that SCAF1 deficiency partly rescues RAD51 loading in cells lacking the BRCA1 tumor suppressor. Taken together these data reveal potential new ATR biomarkers and new genome maintenance factors.

On Recoding Ordered Treatments as Binary Indicators

Abstract Researchers using instrumental variables to investigate ordered treatments often recode treatment into an indicator for any exposure. We investigate this estimand under the assumption that the instruments shift compliers from no treatment to some but not from some treatment to more. We show that when there are extensive margin compliers only (EMCO) this estimand captures a weighted average of treatment effects that can be partially unbundled into each complier group's potential outcome means. We also establish an equivalence between EMCO and a two-factor selection model and apply our results to study treatment heterogeneity in the Oregon Health Insurance Experiment.

Recreational Practices and Employee Performance in Non-Governmental Organizations (NGOs) in Kenya

Employee welfare practices in organizations, which involve offering various recreational programs in the workplace, are crucial for enhancing motivation and increasing performance among staff members. Therefore, the primary aim of this research was to determine the relationship between recreational activities and employee performance in Kenya while also considering the moderating influence of top management commitment on employee performance. The study utilized a cross-sectional survey approach that incorporated both qualitative and quantitative methods. The research population consisted of 14,323 NGO employees in Nairobi County, Kenya, with 403 participants, including top managers, middle-level managers, and lower-level managers. The selection of respondents was done through stratified, simple random, and purposive sampling techniques. Primary data were collected through questionnaires, while secondary data were obtained from peer-reviewed books, articles, and journals. The study was grounded in relevant theories such as Maslow's hierarchy of needs, Herzberg's two-factor theory, and Human Relations Theory. A pilot study was conducted to ensure the reliability and validity of the research tools. Data analysis was carried out using the Statistical Packages for Social Sciences, version 25, with inferential and descriptive statistics, including frequencies, means, correlations, and multiple linear regression. The findings of the study were presented through pie charts, graphs, and tables. The results indicated a positive and significant relationship between recreational practices like staff parties, team building, and sports events and employee performance. Moreover, it was found that top management's communication, policy development, and budget allocation significantly moderated the relationship between recreational practices and employee performance. Additionally, a linear relationship was observed between the independent and dependent variables. In conclusion, the study emphasized the importance of recreational practices in enhancing employee performance, especially when supported by top management commitment.

What External Aspect of Motivation Has the Greatest Influence: Survey Research on Herzberg's Theory

Teacher motivation is a critical factor influencing educational quality and student outcomes. Previous research highlights that motivation can be significantly enhanced by both intrinsic and extrinsic factors. This study focuses on the external aspects of motivation as proposed by Herzberg's theory, aiming to identify the most influential factors in boosting teacher motivation. The researchers selected a survey design for its efficacy in gathering data from a representative sample. A total of 335 private school teachers in South Kalimantan Province were surveyed, following the sample size determination method of Krejcie and Morgan to ensure precise representation. Data analysis was conducted using SPSS software version 25. The study revealed that Company Policies had the highest mean score among various extrinsic motivation factors. This indicates that clear, fair, and supportive company policies are private school teachers' most significant external motivators. The findings are crucial for education stakeholders, as understanding the key elements influencing teacher motivation can help design better strategies to enhance teaching quality and motivation. This study is significant because it is able to identify and emphasize company policy as the primary external motivator. This provides valuable insights for policymakers and educational leaders in formulating effective strategies to boost teacher motivation and performance.

Postpartum acute stress disorder symptoms, social support, and quality of couple's relationship associations with childbirth PTSD.

We aimed to examine the hypothesized negative associations between childbirth post-traumatic stress disorder (PTSD) symptoms (using the two-factor model of birth-related and general symptoms), social support, and a couple's relationship quality at 8-12 weeks postpartum. This analysis considered the longitudinal positive shared variance with acute stress disorder (ASD) symptoms measured shortly after birth, while accounting for obstetric and demographic variables. Participants included 246 mothers who gave birth at the maternity ward of a tertiary healthcare center. Self-report questionnaires were used 1-4 days postpartum (T1): Demographic information, the Birth Satisfaction Scale-Revised (BSS-R), and the National Stressful Events Survey Acute Stress Disorder Short Scale (NSESSS). At T2 (8-12 weeks postpartum), the Multidimensional Scale of Perceived Social Support (MSPSS), the Dyadic Adjustment Scale (DAS-7), and the City Birth Trauma Scale (BiTS). In partial support of our hypotheses, three hierarchical regression analyses revealed a significant positive contribution of ASD symptoms to childbirth PTSD general symptoms (β = .33, p <.001) and the total score (β=.29, p <.001), but not to birth-related symptoms. Social support (β = -.21, p = .003) and the quality of the couple's relationship (β=-.20, p = .003) showed negative associations with the BiTS general symptoms. Our study enhances understanding of the shared variance between childbirth ASD and PTSD, supporting the factor structure of general and birth-related symptoms as different aspects of childbirth PTSD and highlighting the negative association of social support and the quality of a couple's relationship with PTSD general symptoms, suggesting potential avenues for targeted interventions.

Examining Public Service Motivation's Impact on Organizational Commitment: Focusing on Moderating Roles of Hygiene and Motivation Factors.

Despite previous studies on public service motivation among public sector employees, the empirical analysis of the influential contextual conditions that moderate public service motivation's impact on employees' work attitudes remains inadequate. Given these limitations, this study examines public service motivation's effects on public employees' organizational commitment and investigates how Herzberg's hygiene and motivation factors moderate the relationship between these aspects in the context of South Korea's central government. For this, we used the data of 1021 public employees from the Differences in the Values of Different Generations of Public Officials and Organizational Innovation Survey, which the Korea Institute of Public Administration had conducted in 2022. We analyzed the data through hierarchical multiple regression analyses, and the results indicated that public service motivation exerts a positive effect on organizational commitment. Specifically, hygiene factors weaken the positive relationship between public service motivation and organizational commitment, while motivation factors have a moderating effect that strengthens said relationship. These findings suggest that, in order to enhance organizational commitment among motivated public employees, human resource management practices should prioritize motivational factors that can enhance job content, meaning, and autonomy instead of solely focusing on providing monetary incentives or improving external conditions.

Job satisfaction in nursing: A qualitative inquiry into novice and experienced nurses' perspectives

AimTo explore factors associated with job satisfaction between novice and experienced nurses. BackgroundJob satisfaction is crucial for better quality of patient care and nurses’ job engagement in clinical setting. However, job dissatisfaction is commonly reported from clinical nurses leading to poorer patient outcomes and high turnover rate. Job satisfaction at different professional stages may have different expectations. Knowledge about factors influencing job satisfaction of junior and senior nurses is inadequate. DesignA phenomenological study was conducted using face-to-face individual interviews. MethodSemi-structured interviews were conducted and audio-recorded. The Herzberg’s Two-Factor Theory was used to understand the phenomena. Purposeful sampling was used to select eligible nurse participants who were working in hospital settings. ResultsEight participants, consisting of four junior and four senior nurses, with clinical experience ranging from 1 to more than 25 years, were selected in this study. Four main themes related to job satisfaction were identified: "supportive working environment," "autonomy in practice," "professional training for competence enhancement," and "heavy workload and insufficient manpower." These themes highlighted the common aspects that contribute to job satisfaction among nurses according to the Herzberg’s Two-Factor Theory. ConclusionThe findings of this study contribute to our understanding of the factors that influence job satisfaction among both novice and experienced nurses. While four themes highlighting common aspects of their needs have been identified, it is important to acknowledge that novice and experienced nurses may have their own unique perspectives within these aspects. According to Herzberg's Two-Factor Theory, job satisfaction factors can be complex and diverse. To enhance job satisfaction among nurses, hospital policymakers and senior management should be attentive to identify factors that have an impact on job satisfaction of nurses at different stages of their clinical experience. Developing a strategic plan to meet the needs of nurses based on their experience levels should take into consideration the disparities in work environment and responsibilities, ultimately job satisfaction can be improved, leading to better overall patient care.

Personal Hygiene and Environmental Sanitation Factors that Influence the Incidence of Scabies in Al-Bayan

Introduction: The scabies is a skin disease caused by an infestation of Sarcoptes scabies mites. The scabies prevalence in Makassar city health profile in 2012 was 8 of 10 major diseases with a huge 6.63 %. Methods: Analytical description with cross-sectional design. Data was collected through interviews using personal hygiene questionnaires and environmental sanitation observation sheets. The sample for this study was total sampling, a total of 67 junior high school Al Bayan Hidayatullah students were selected. Results: Chi-square test results that showed that there was a relationship between skin hygiene and the incidence of scabies (p-value = 0.000), there was a relationship between hand hygiene and the incidence of scabies (p-value = 0.014), there was a relationship between nail hygiene and the incidence of scabies (p-value = 0.023), there is a relationship between clothing hygiene and the incidence of scabies (p-value = 0.000), there is a relationship between towel hygiene and the incidence of scabies (p-value = 0.006), there is no relationship between bed and bed linen hygiene and the incidence of scabies (p-value = 0.095 ), There is no relationship between environmental sanitation and the incidence of scabies (p-value = 0.538), There is no relationship between residential density and the incidence of scabies (p-value = 0.538). Conclusion: Improve personal hygiene and improve environmental sanitation so that they can avoid scabies as early as possible.

Особливості застосування змістовних теорій мотивування працівників в умовах воєнного стану

The article examines the intricacies of staff motivation at Ukrainian enterprises in the conditions of unprecedented challenges associated with the ongoing crisis and martial law. Modern motivation strategies, aimed at identifying and satisfying actual needs, should contribute to the formation of conditions that provide staff with a sense of stability and security, thereby contributing to an increase in their productivity and satisfaction at the workplace. By studying the main theories of motivation, such as Abraham Maslow’s hierarchy of needs, the theory Alderfer’s ERG, McClelland’s acquired needs theory, and Herzberg’s two-factor theory, the authors highlight the multifaceted implications of each perspective, especially as applied to the unique context of wartime. The scholarly study begins with a comprehensive analysis of motivation theories, providing readers with a detailed understanding of their applicability and challenges in various contexts. The article outlines Maslow’s hierarchical progression of needs as opposed to her more variable Alderfer classification. The researchers proposed A. Maslow’s Adapted Pyramid of Needs for motivating employees in martial law conditions, which, when used effectively, will help managers create the necessary psycho-emotional environment and minimize staff turnover. In addition, David McClelland’s emphasis on achievement, affiliation, and power needs, which are not the priority desires of employees compared to safety needs, is explored in detail. Herzberg’s dichotomy between hygiene and motivational factors is also described, which gives insight into the importance of balancing the satisfaction of hygiene and motivating needs. This article highlights the renewed relevance of foundational motivational theories in shaping pragmatic strategies in a changing business landscape. In particular, Maslow’s hierarchy and Herzberg’s two-factor theory become the main guidelines for the development of effective motivational interventions, especially taking into account the urgent needs of employees, such as physiological and safety requirements, which are the most important in the modern Ukrainian environment. The authors of the article give examples of specific measures that Ukrainian enterprises can take. use to increase the motivation of personnel in wartime conditions. In particular, intangible incentives such as support, team building, volunteering, extra days off and vacations are effective. At the end of the article, the importance of understanding and adapting motivation theories to the specific context of Ukrainian enterprises during the war is emphasized. By recognizing the nuances of their workforce’s needs, managers can effectively implement motivational strategies that promote employee engagement, productivity, and resilience in the face of conflict.

A Systematic Review of Coaching Skills Among Administrators in Universities

This systematic review examines the coaching skills of university administrators and their impact on faculty job satisfaction. The primary goal of the study is to identify crucial coaching skills, examine their impact on job satisfaction, and emphasize the most successful practices for improving coaching effectiveness. The main research problem aims to gain a thorough grasp of coaching dynamics in higher education situations. The study utilizes a methodical approach of reviewing existing literature, adhering to the PRISMA principles. It examines a total of 38 papers published between 2004 and 2024. Effective communication is the most researched skill, according to key findings; goal setting, emotional intelligence, feedback mechanisms, and conflict resolution follow accordingly. Theoretical implications are consistent with Herzberg's Two-Factor Theory and Transformational Leadership Theory, which prioritize interpersonal relationships, recognition, responsibility, and feedback as key factors in promoting job satisfaction. The practical implications highlight the worldwide significance of coaching skills and the necessity of ongoing professional development for administrators. The study's significance is centered on providing information that can guide decision-making and actions in institutions around the world, promoting a culture of working together, creativity, and organizational efficiency.

Leadership motivation in ensuring energy security of enterprises through intellectualization of the process approach in management

Methods. The study was conducted on the basis of the use of methods of analysis and synthesis, which were used to identify the components of energy security of enterprises; factor analysis – when establishing internal and external factors of the formation of motivation of leaders in the implementation of the energy saving strategy of their enterprises; comparison – when highlighting the specifics of classical theories of motivation. Results. The article examines the role of leadership motivation in achieving energy security of enterprises. Classical concepts of motivation are considered, in particular: Maslow's hierarchy of needs, Herzberg's two-factor theory, Vroom's expectancy theory, Deci and Ryan's selfdetermination theory, and Adams' equity theory. Their comparison was made and specific features were established. The internal and external factors that stimulate leaders to make decisions aimed at achieving organizational goals based on the implementation of a process approach are singled out. Personal ambitions and aspirations of the leader, as well as social and organizational conditions that determine his behavior, are identified as the main factors. The importance of transformational leadership in ensuring the energy security of enterprises is emphasized. It is determined that it stimulates creativity and innovation, which are key factors for increasing energy efficiency and stability of energy systems. Novelty. It has been proven that leadership in the field of energy security of the enterprise includes the ability of the manager to effectively manage the company's energy resources, ensuring the stability and efficiency of their use. This involves the development and implementation of energy strategies, risk management, the implementation of innovations and constant training and development of personnel. It has been established that the motivation of leaders is an important component of the successful implementation of energy security strategies. Practical value. This study will be useful for enterprises seeking to improve the efficiency of their resource management in order to ensure energy security.

Understanding the Interplay Between ICD-11 Complex PTSD and Personality Disorder Features in Relation to Traumatic Life Events in a Trauma-Exposed Community Sample

In the ICD-11, PD and CPTSD overlap in impaired aspects of self- and interpersonal functioning, with implications for assessment and treatment. This article aimed to explore the relationship between CPTSD and PD features. A trauma-exposed community sample in Denmark (N = 470) completed the ITQ, PDS-ICD-11, and BTQ. Data were analyzed using exploratory structural equation modeling. Both two- and three-factor models were viable. In the two-factor model, both disturbances in self-organization (DSO) and PD items belonged to the same disturbed self-interpersonal functioning factor. Both factors predicted quality of life and functioning and were predicted by number of life events. In the three-factor model (PTSD, DSO, and PD), there was some overlap between DSO and PD items. Number of life events predicted belonging to the PTSD and DSO classes but not the PD class. The findings demonstrate clear overlapping and differentiating features. Multiple traumas and functioning in self-concept and relationships appear to differentiate.

Real-world clinical outcomes and prognostic factors of olaparib maintenance in Korean patients with primary or recurrent high-grade ovarian cancer with exploratory analysis of location of BRCA1 and BRCA2 mutations.

e17561 Background: Olaparib is approved for first-line (1L) and second or subsequent-line (2L+) maintenance therapy in BRCA-mutated ovarian cancer (OC). However, the correlation between location of BRCA mutation and benefit of olaparib maintenance therapy has not been thoroughly investigated. We aimed to analyze real-world clinical outcomes and identify prognostic factors for olaparib maintenance therapy in Korean patients with BRCA-mutated OC, focusing on BRCA mutation sites. Methods: This retrospective cohort study included Korean patients with BRCA-mutated OC who received olaparib as 1L or 2L+ at the single center between January 2015 and April 2023. Survival outcomes and toxicity were correlated with BRCA mutation location summaries and patient characteristics by maintenance therapy line. Results: For the 1L group (n = 70), 2-year PFS and 3-year OS were 75.5% (95% CI, 56.4–87.1) and 98.5% (95% CI, 90.0–99.8). For the 2L+ group (n = 83), 2-year PFS and 3-year OS were 54.8% (95% CI, 56.4–87.1) and 87.3% (95% CI, 76.7–93.3). Primary stage (IV vs. ≤ III) was a prognostic factor for PFS in the 1L group (adjusted hazard ratio [aHR], 5.74; 95% CI, 1.23–26.73; P = 0.026). Notably, Korean-specific pathogenic variant p.Leu1780Pro BRCA1 mutation carriers (n= 8) showed significantly worse PFS than non-carriers (n = 32) in the 1L group (Log-rank P = 0.014). For the 2L+ group, platinum-free interval ≥ 12 months was a good prognostic factor for both PFS (aHR, 0.42; 95% CI, 0.23–0.75) and OS (aHR, 0.31; 95% CI, 0.11–0.91). Additionally, somatic BRCA1 mutation was a poor prognostic factor for PFS in the 2L+ group (hazard ratio [HR], 3.39; 95% CI, 1.22–9.38; P = 0.029). In the 1L group, the longer interval between the last chemotherapy and maintenance therapy was associated with the lower risk of hematologic toxicity induced by olaparib (odd ratio [OR], 0.75; 95% CI 0.57–0.99; P = 0.04). In addition, age ≥ 65 years (OR, 3.33; 95% CI, 1.05–10.63; P = 0.04) and the dose reduction of the last chemotherapy (OR, 3.80; 95% CI, 1.02–14.18; P = 0.047) were associated with a higher risk of hematologic toxicity in the 1L group. In the 2L+ group, germline BRCA1 (OR, 0.36; 95% CI, 0.14–0.92; P = 0.03) and BRCA2 (OR, 7.47; 95% CI, 1.96–28.39; P = 0.003) mutations showed contrariwise risks for hematologic toxicity. Drug discontinuation due to toxicity was 1.4% and 6.0% in the 1L and the 2L+ groups and no acute myeloid leukemia/myelodysplastic syndrome cases were observed. Conclusions: Olaparib maintenance therapy was effective and tolerable in Korean patients with BRCA-mutated OC. Prognostic factors for survival outcomes and risk factors of hematologic toxicity in olaparib maintenance therapy were different between 1L and 2L+. The prognostic significance of Korean-specific p.Leu1780Pro BRCA1 mutation on olaparib should be further researched.

Efficacy and biomarker analysis of phase 2 (P2) and window-of-opportunity (WoO) cohorts of patients with recurrent glioblastoma (rGBM) treated with ST101, an inhibitor of the transcription factor C/EBPβ.

2011 Background: CCAAT/enhancer-binding protein β (C/EBPβ) is an important transcription factor in GBM cell maintenance and is associated with worse outcomes and resistance to chemotherapy through transcription of genes associated with cell cycle and DNA repair. C/EBPβ is also required for maintenance of immunosuppressive tumor-associated macrophages. ST101 is a first-in-class antagonist of C/EBPβ that promotes selective GBM cell death without impacting normal cell viability (Darvishi, 2022), and repolarization of macrophages toward an immunostimulatory program. In an all comers P1 study, ST101 was well-tolerated, showed significant tumor uptake, ~40 hr plasma half-life, and signal of efficacy (1PR +8SD). With strong rationale targeting C/EBPβ in GBM and evidence that ST101 crosses the BBB in preclinical biodistribution studies, cohorts in rGBM were explored. Methods: Pts with ≤2 recurrences of GBM were enrolled in a P2 cohort (n=30) and treated with 500mg QW. A WoO cohort of 6 pts with rGBM received 2-4 doses of ST101 500mg QW prior to surgery and resumed ST101 after surgery until progression (NCT04478279). Endpoints for the two cohorts included response, PFS and OS while the WoO cohort also included tissue analyses (GBM subtypes, tumor microenvironment (TME) characterization, ST101 tumor penetration, and C/EBPβ target engagement). Clinical data is available for both cohorts and tissue analysis is available for the WoO cohort. Results: Data is a snapshot as of February 1, 2024. ST101 was safe and well-tolerated in both cohorts with no discontinuations due to AEs. Pts in the P2 study show 30% DCR (1PR + 8SD), 20% 6-mo PFS and 37% OS at 1 year. Median duration of treatment is 3.4 mos with 2 pts stable and still on study for 10+ and 16+ mos. In the WoO study, efficacy from post-surgery MRI showed 67% DCR (2 PR + 2 SD) and ~50% 6-mo PFS. Median OS cannot be assessed at this early stage. The median duration of treatment is 6.02 mos with 2 pts still on study for 7+ and 10+ mos. Tissue compared before and after ST101 exposure shows ST101 uptake and C/EBPβ target engagement by IHC, and pathologic evidence of treatment effect, such as geographic necrosis, in 5/6 pts. Evaluation of tumor and TME characteristics in post-ST101 treatment tissue will be presented. Conclusions: Monotherapy ST101 in pts with rGBM has an excellent safety profile and results in comparable outcomes to current 2nd line treatments. ST101 crosses the BBB, engages its target, and potentially induces treatment-related necrosis. These encouraging clinical activity, safety, and tissue findings, as well as preclinical data showing additive activity in combination with lomustine, support advancing ST101 to a randomized, placebo-controlled study comparing ST101 + lomustine vs. lomustine + placebo in rGBM. We aim to initiate this study in Q3 2024. Clinical trial information: NCT04478279 .

Breaking down processing speed: Motor and cognitive insights in first-episode psychosis and unaffected first-degree relatives

IntroductionProcessing speed (PS) deficits represent a fundamental aspect of cognitive impairment, evident not only in schizophrenia but also in individuals undergoing their first episode of psychosis (FEP) and their unaffected first-degree relatives. Heterogeneity in tests assessing PS reflects the participation of motor and cognitive subcomponents to varying degrees. We aim to explore differences in performance of the subcomponents of PS in FEP patients, parents, siblings, and controls. Materials and methodsResults from tests, including Trail Making Test part A and part B, Digit Symbol Coding Test, Grooved Pegboard Test, and Stroop Word and Stroop Color subtests, were obtained from 133 FEP patients, 146 parents, and 202 controls. Exploratory factor analysis (EFA) was employed in controls to establish the structure, followed by confirmatory factor analysis (CFA) to verify if the other groups share this structure. ResultsEFA revealed a two-factor model: Factor 1 for the motor subcomponent and Factor 2 for the cognitive subcomponent. Subsequently, CFA indicated a good fit for the remaining groups with differences in the relationship between the factors. ConclusionsDifferences in the relationships of factors within a common structure suggest the involvement of different compensatory strategies among groups, providing insights into the underlying mechanisms of PS deficits in patients and relatives.

Validation of Beam Angle Switching Method Using a LED Lumen Maintenance Testing Device

In today’s world, LED predominantly ousted all forms of light sources because of its long lifetime, reliability, very low power consumption, and excellent controllability. That is why, it became a necessity to find proper methods to examine all its characteristics. As directed in several standards, an accelerated life test (ALT) is a good method to predict LED’s lumen depreciation. In correspondence with these standards, to find that persistency of light output from a medium power LED, a prototype is developed, which has predefined data storage capacity with remote monitoring capability, at the Electrical Engineering Department’s Illumination Engineering Laboratory at Jadavpur University to measure the lumen maintenance factor, junction temperature, and ambient humidity in the defined test chamber. Besides, to test the device a particular case study is done to validate beam angle switching, a method for LED dimming. The case study reveals that the dimming method has no effect on the LED’s junction temperature or light output.

Attentional Control Scale- Turkish Version: Psychometric Qualities, Factor Structure and its Comparison with Behavioral Measures of Executive Attention

Attentional control refers to the capacity to voluntarily control attentional resources in a flexible manner. Attentional control was reported to play a fundamental role in self-regulation, emotion regulation, delay of gratification, and psychological distress. The Attentional Control Scale (ACS) was developed to measure perceived attentional control based on shifting and focusing dimensions. The present studies aimed to adapt the Turkish version of ACS and asses its psychometric characteristics. Study 1 aimed to explore the psychometric qualities of the Turkish version with a group of Turkish individuals (N = 428, 306 women) between the ages of 18 and 68 and supported the two-factor model of ACS consisting of 17 items in total. The results supported that shifting, focusing, and total ACS showed adequate internal consistency, test-retest reliability, and convergent validity evidence based on its significant correlations with measures of anxiety, depression, and repetitive negative thinking, signifying its proper psychometric characteristics. In Study 2 (N = 97, 65 women), the association of ACS with behavioral attentional control measures was examined, and non-significant associations between self-report and behavioral measures of attentional control were denoted. These findings signified that rather than indicating the individual’s actual attentional control capacity, ACS assessed how the individual perceives their own attention control capacities. Taken together, the results suggest that the Turkish form of ACS is a valid and reliable scale that can be used to assess perceived attentional control capacity based on shifting and focusing domains, particularly in the research setting.

The working alliance inventory – short version: psychometric properties of the patient and therapist form in youth mental health and addiction care

The therapeutic alliance is considered to play an important role in youth treatment. The commonly used versions of the Working Alliance Inventory (WAI) are based on Bordin’s three-dimensional alliance model. However, previous psychometric studies of the WAI did not find this three-dimensional structure in youth psychotherapy. These earlier findings may indicate different perceptions of the alliance by adolescent versus adult patients, but may also be due to methodological shortcomings. The current study aims to address previous study limitations by evaluating the factor structure of the short version of the WAI (WAI-S) in youth treatment in multilevel analysis to address the hierarchical structure of the alliance data. We examined the psychometric properties of the patient (n = 203) and therapist (n = 62) versions of the WAI-S in youth mental health and addiction care and tested four multilevel models of alliance at start of treatment and 2-month follow-up. Our results suggests a two-factor model for youth and a three-dimensional model for their therapist at both time points. Since this is the first study that finds a best fit for a two-dimensional construct of alliance in youth, more research is needed to clarify whether the differences in alliance dimensions are due to measurement differences between the WAI-S for youth and therapists or whether youth and their therapists truly differ in their perceptions of the concept of alliance.

Psychometric properties and invariance of the Police Stress Questionnaire in the Romanian context

This research evaluates the psychometric properties of the Romanian version of the Police Stress Questionnaire (PSQ), featuring operational and organizational stress scales for police officers. We conducted three studies to test the reliability and validity of this questionnaire. The first study (N = 744) aimed at adapting and validating the Romanian version on the specific population. Confirmatory factor analysis of our two-factor model, each with 20 items grouped in a second-order factor, showed the good value of the fit indices: χ²(738) = 1420.11, p < .001; CFI = 0.992; TLI = 0.992; RMSEA = 0.035 [90% CI 0.033, 0.038]; SRMR = 0.059. Subsequently, we tested measurement invariance, demonstrating that the Romanian version of this questionnaire measures workplace stress (including operational and organizational stress factors) independently of the work environment (police officers vs. correctional officers). The second study (N = 394) confirmed PSQ’s convergent validity through positive correlations with stress perception, burnout, mental health complaints, and psychological distress and its discriminant validity through negative correlations with job satisfaction and work engagement. The third study tested the longitudinal invariance of the stress questionnaire for police (N = 317). The findings suggest that the PSQ is a reliable and valid tool, highlighting its significant impact on the well-being of Romanian police officers by facilitating stress management interventions through baseline and ongoing stress assessment. Future research should longitudinally assess police stress, incorporating multi-source data and diverse units, as well as exploring the impact of socio-demographic aspects for broader insights.