Nurse Psychological Capital Scale

Abstract

The Nurse Psychological Capital Scale (NPCS) is an indigenously developed, culturally contextualized psychometric instrument engineered to evaluate positive psychological resources among professional nurses operating within collectivist healthcare environments, specifically within the Chinese hospital system. While traditional conceptualizations of psychological capital (PsyCap)—anchored by Fred Luthans and colleagues—posit a four-factor structure consisting of hope, self-efficacy, resilience, and optimism (HERO) derived from individualistic Western workplace norms, the NPCS addresses structural and ecological limitations inherent in applying such frameworks universally. Developed by Xiangyu Lu and colleagues (2023), the scale operationalizes nursing-specific psychological resources through three interrelated, culturally congruent dimensions: work task-oriented psychological capital, interpersonal relationship-oriented psychological capital, and learning development-oriented psychological capital.

Comprising 43 self-report items administered via a multi-point continuum, the NPCS captures clinical competency, professional adversity management, relational harmony with colleagues and patients, and continuous commitment to lifelong clinical education. In its primary psychometric evaluation across a cohort of 619 registered nurses from tertiary hospitals in Hebei Province, China, the scale displayed exceptional internal consistency, yielding an overall Cronbach’s alpha ($lpha$) coefficient of 0.975 (composite reliability values exceeding 0.95 across all dimensions). Exploratory factor analysis ($n = 319$) extracted a three-factor solution explaining 68.71% of the total variance, while confirmatory factor analysis ($n = 300$) verified adequate structural fit ($\chi^2/df = 2.839$, $ ext{RMSEA} = 0.078$,$ ext{RMR} = 0.041$,$ ext{CFI} = 0.871$,$ ext{TLI} = 0.863$). The scale demonstrated robust criterion-related validity through strong positive correlations with nurse work engagement ($r = 0.579$,$p < 0.001$). By bridging clinical nursing demands with culturally rooted philosophies such as Confucian benevolence (Ren) and Taoist dialectical adaptability, the NPCS provides healthcare administrators and clinical researchers with an ecologically valid assessment tool for identifying nurse vulnerabilities, mitigating burnout, and structuring targeted workforce development initiatives.

Keywords

Nurse Psychological Capital Scale, psychological capital, nursing assessment, cross-cultural psychometrics, occupational health, Chinese healthcare system, work engagement, nurse burnout, scale validation, clinical resilience

Authors

The Nurse Psychological Capital Scale was conceptualized, developed, and empirically validated by an interdisciplinary team of clinical nursing scholars and psychometric researchers:

• Xiangyu Lu — Department of Nursing, North China University of Science and Technology, Tangshan, Hebei, China; School of Nursing, Jilin University, Changchun, Jilin, China.
• Lina Wang — Department of Nursing, North China University of Science and Technology, Tangshan, Hebei, China.
• Guifang Xu — Tangshan Gongren Hospital, Tangshan, Hebei, China.
• Haixia Teng — Department of Nursing, North China University of Science and Technology, Tangshan, Hebei, China.
• Jing Li — Tangshan Gongren Hospital, Tangshan, Hebei, China.
• Yufang Guo (Corresponding Author) — Department of Nursing, North China University of Science and Technology, Tangshan, Hebei, China. Electronic Correspondence: [email protected].

Purpose

The primary clinical and empirical purpose of the Nurse Psychological Capital Scale is to rectify the systematic psychometric mismatch that occurs when Western-originated psychological capital scales (such as the Psychological Capital Questionnaire, PCQ-24) are deployed within East Asian healthcare systems without culturally sensitive adaptations. In classical organizational psychology, psychological capital represents an individual’s positive psychological state of development characterized by high self-efficacy, goal-directed hope, bounce-back resilience, and dispositional optimism. However, these foundational constructs were calibrated predominantly within WEIRD (Western, Educated, Industrialized, Rich, Democratic) organizational settings that celebrate personal agency, self-promotion, autonomous goal-striving, and independent task completion.

In contrast, clinical nursing in hospital environments operates under conditions of extreme emotional labor, high-stakes moral dilemmas, strict hierarchical structures, and an intense reliance on team cohesion. Within collectivist cultural traditions—specifically those influenced by Confucian, Taoist, and Buddhist philosophical orientations—an employee’s psychological resilience cannot be divorced from social harmony, filial and occupational duty, interpersonal emotional resonance, and self-effacing continuous personal improvement. When generic Western instruments are applied to Chinese nurses, they often fail to capture vital components of occupational coping, such as interpersonal balance, emotional containment, patient-centered humanistic care, and collective solidarity.

The NPCS was therefore designed to serve multiple applied and theoretical functions:

• Granular Diagnostic Profiling: It enables clinical nurse managers and hospital administrators to diagnose specific deficits in nurses’ internal resources, distinguishing whether a clinician’s vulnerability stems from task-level clinical insecurity, interpersonal/relational fatigue, or a stagnation in learning and professional development.
• Burnout and Turnover Mitigation: By measuring culturally nuanced resources that shield against occupational exhaustion, the NPCS provides predictive data regarding turnover intentions, moral injury, and compassion fatigue among hospital ward nurses.
• Evaluation of Organizational Interventions: The scale functions as an evaluative endpoint for targeted training programs, peer-support modules, and institutional wellness interventions designed to cultivate resilience, emotional intelligence, and collective clinical competence.
• Cross-Cultural Psychometric Advancement: It provides cross-cultural researchers with a methodologically validated comparative benchmark for examining how cultural collectivism reshapes positive organizational behavior constructs in healthcare environments.

Psychological Construct

The construct assessed by the Nurse Psychological Capital Scale redefines positive psychological capital through an ecological, profession-specific, tripartite model. Rather than conceptualizing PsyCap solely as a cluster of four personal traits, the NPCS operationalizes it as a dynamic constellation of psychological capabilities spanning tasks, relationships, and professional trajectory.

1. Work Task-Oriented Psychological Capital

This subscale captures the internal psychological resources that nurses mobilize to navigate the demanding operational, clinical, and physiological conditions of daily healthcare delivery. Moving beyond generic self-efficacy, this construct encapsulates:

• Clinical Mastery and Task Self-Efficacy: The subjective conviction in one’s capacity to execute complex nursing protocols, handle medical emergencies, and prioritize urgent clinical interventions under acute time pressure.
• Adversity Management and Professional Tenacity: The psychological capacity to maintain high vigilance, emotional stability, and cognitive focus despite extreme physical exhaustion, shifting schedules, and unexpected clinical complications.
• Proactive Problem-Solving: The inclination to take autonomous initiative when navigating workflow bottlenecks or operational disruptions, transforming clinical roadblocks into constructive problem-solving exercises.

2. Interpersonal Relationship-Oriented Psychological Capital

A core innovation of the NPCS is the structural integration of relational competencies as intrinsic components of psychological capital. In collectivist and clinical healthcare contexts, psychological strength is fundamentally embedded in social networks. This dimension encompasses:

• Humanistic Caring (Ren): Rooted deeply in traditional Chinese philosophy and modern nursing values, this facet measures the clinician’s internal capacity to demonstrate empathy, patient-centered concern, warmth, and ethical compassion even under conditions of high clinical throughput.
• Relational Harmony and Conflict Mediation: The ability to sustain constructive, supportive, and friction-free collaborations with physician colleagues, auxiliary staff, and nursing peers, effectively buffering against lateral workplace violence and relational friction.
• Therapeutic Alliance Navigation: The psychological capacity to handle sensitive patient-family interactions, defuse acute interpersonal tensions, and communicate medical realities with cultural nuance and emotional composure.

3. Learning Development-Oriented Psychological Capital

The final dimension reflects the nurse’s orientation toward continuous professional growth, adaptation, and intellectual endurance within a constantly evolving medical landscape. This includes:

• Adaptive Learning Motivation: The self-driven psychological appetite to acquire new clinical knowledge, master updated biomedical technologies, and study emerging evidence-based clinical guidelines.
• Professional Self-Reflection (Zi Sheng): The habit of systematically analyzing one’s clinical decisions, identifying technical or procedural shortcomings without excessive self-blame, and applying corrective self-regulation to future practice.
• Psychological Adaptability: The resilience required to transition seamlessly across clinical wards, integrate evolving nursing procedures, and adapt to structural organizational changes within tertiary healthcare systems.

Theoretical Framework

The theoretical architecture of the NPCS synthesizes modern organizational psychology frameworks with traditional Eastern philosophical paradigms, anchoring positive organizational behavior within the reality of clinical nursing.

Integration of the Job Demands-Resources (JD-R) Model

From an organizational psychology standpoint, the NPCS is firmly embedded within the Job Demands-Resources (JD-R) model developed by Arnold Bakker and Evangelia Demerouti. In clinical nursing, job demands—such as high patient acuity, sleep-disrupting shift work, emotional strain, and physical hazards—continually deplete an individual’s energy reserves, leading to occupational burnout. Conversely, psychological capital functions as a fundamental personal resource within the JD-R model. These personal resources act as an internal buffer that blunts the negative physiological and emotional impact of job demands, simultaneously fostering intrinsic motivation, dedication, and elevated work engagement. The NPCS operationalizes these personal resources across the exact functional domains (tasks, relationships, and learning) where clinical demands are most actively experienced.

Critique and Evolution of the Western HERO Model

In the foundational model pioneered by Fred Luthans, Bruce Avolio, and Carolyn Youssef, psychological capital is conceptualized as a higher-order core construct consisting of Hope (Snyder’s goal pursuit theory), Efficacy (Bandura’s social cognitive theory), Resilience (Masten’s coping paradigms), and Optimism (Seligman’s attribution theory). While robust across corporate sectors, this “HERO” framework is largely intrapersonal. It assumes that individuals operate primarily as autonomous units who evaluate and pursue self-directed outcomes.

The NPCS addresses several theoretical limitations of this model when applied to collectivist nursing environments:

• Relational Interdependence: Western models tend to treat interpersonal skills as communication behaviors rather than core components of psychological capital. The NPCS recognizes that in collectivist frameworks, the psychological self is relational; emotional balance and personal strength are derived directly from the quality of social harmony.
• Contextualized Resilience: Rather than treating resilience as an abstract trait, the NPCS treats it as an operationalized response to clinical work tasks and organizational demands.
• Developmental Orientation: The NPCS posits that continuous clinical education is not merely a technical prerequisite, but a core psychological coping resource that provides nurses with mastery, purpose, and institutional self-worth.

Philosophical Underpinnings: Confucianism and Taoism

The qualitative grounded-theory phases informing the NPCS incorporated explicit elements of traditional Chinese philosophy:

• Confucian Humanism (Ren and He): Confucian ethics emphasize benevolence, social obligation, and interpersonal harmony (He). In nursing, this translates into viewing patient care not as transactional labor, but as a moral vocation, where emotional connection and peer support serve as active sources of internal psychological replenishment.
• Taoist Dialectical Adaptability: Taoist thought emphasizes psychological flexibility, yielding to pressure without breaking (like water), and maintaining equanimity amid unpredictability. This perspective informs the learning and development dimension of the scale, framing workplace disruptions not as threats to autonomy, but as natural catalysts for self-reflection and professional maturation.

Validity

The Nurse Psychological Capital Scale underwent a psychometric validation program adhering to the joint standards set by the American Educational Research Association (AERA), American Psychological Association (APA), and the National Council on Measurement in Education (NCME).

Content Validity

The initial pool of items was formulated through qualitative phenomenological interviews with clinical nurses, followed by structured reviews by an expert panel composed of clinical nursing directors, psychiatric nurse specialists, and psychometricians. Content validity was quantitatively analyzed using established Content Validity Index (CVI) formulas:

• Item-Level Content Validity Index (I-CVI): Ranged from 0.83 to 1.00 across all 43 items, satisfying the standard Lynn (1986) threshold of $ge 0.78$ for panel evaluations.
• Scale-Level Content Validity Index Average (S-CVI/Ave): Reached 0.988, substantially surpassing the conventional benchmark of $ge 0.90$, confirming that the item inventory comprehensively captures the intended construct.

Construct Validity: Convergent and Discriminant Validity

Construct validity was examined through Confirmatory Factor Analysis (CFA), Average Variance Extracted (AVE), and Composite Reliability (CR) metrics:

• Composite Reliability (CR): The CR values for all three latent factors exceeded 0.95, illustrating high structural cohesion and minimal error variance within each dimension.
• Average Variance Extracted (AVE):
  • Interpersonal relationship-oriented psychological capital: $ ext{AVE} = 0.712$, demonstrating strong convergent validity.
  • Learning development-oriented psychological capital: $ ext{AVE} = 0.758$, similarly exceeding the standard 0.50 threshold.
  • Work task-oriented psychological capital: $ ext{AVE} = 0.471$. Although marginally below the strict 0.50 threshold established by Fornell and Larcker (1981), an AVE above 0.40 is psychometrically acceptable when composite reliability is well above 0.60, confirming that the factor retains adequate structural validity.

Criterion-Related and Concurrent Validity

Criterion-related validity was assessed by modeling the relationship between the total NPCS score and the Chinese version of the Utrecht Work Engagement Scale (UWES), a well-established standard for occupational vitality, dedication, and absorption. In line with JD-R theoretical predictions, total NPCS scores demonstrated a statistically significant, moderately strong positive correlation with work engagement:

• Correlation Coefficient: $r = 0.579$ ($p < 0.001$).

This finding demonstrates that higher measured levels of nurse psychological capital correspond to greater clinical vigor, professional dedication, and daily absorption in patient care.

Reliability

The reliability profile of the NPCS was evaluated using internal consistency analyses on data collected from 619 registered nurses across acute care hospital wards.

Internal Consistency Metrics

• Full Scale Cronbach’s Alpha ($lpha$): The overall scale demonstrated an internal consistency coefficient of 0.975 (reported rounded as 0.98 in summary scorecards), reflecting high measurement stability.
• Subscale Reliabilities: All three subscales showed strong internal consistency:
  • Work task-oriented psychological capital: $lpha > 0.90$.
  • Interpersonal relationship-oriented psychological capital: $lpha > 0.92$.
  • Learning development-oriented psychological capital: $lpha > 0.92$.
• Item-Total Correlations: All 43 items showed corrected item-total correlations well above the standard 0.40 retention benchmark, ranging primarily from 0.52 to 0.81, indicating that each item contributes reliably to the underlying construct.

Psychometric Considerations Regarding High Reliability

In psychometric methodology, an overall Cronbach’s alpha of 0.975 warrants careful analysis. As noted in testing literature (e.g., DeVellis, 2003; Nunnally & Bernstein, 1994), alpha values exceeding 0.95 may suggest a degree of item redundancy, where multiple items evaluate closely adjacent nuances of the same cognitive or emotional facets. While this ensures measurement fidelity for high-stakes individual assessments in clinical administration, future development could focus on psychometric streamlining through item-response theory (IRT) to construct an abbreviated, short-form version (e.g., NPCS-SF) that retains high diagnostic precision with fewer items.

Factor Analysis

The structural architecture of the 43-item NPCS was established by splitting the total clinical sample ($N = 619$) into two independent validation cohorts: an exploratory factor analysis cohort ($n = 319$) and a confirmatory factor analysis cohort ($n = 300$).

Exploratory Factor Analysis (EFA)

Prior to extraction, data suitability was evaluated via the Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy and Bartlett’s Test of Sphericity. The KMO index yielded an optimal value well above 0.90, and Bartlett’s test reached statistical significance ($p < 0.001$), confirming the presence of substantial inter-item correlations appropriate for factor extraction.

• Extraction and Rotation: Principal Axis Factoring (or Principal Component Analysis) with oblique (Promax) rotation was employed to accommodate the anticipated theoretical correlations between positive psychological dimensions.
• Variance Explained: A definitive three-factor solution emerged, accounting for a cumulative 68.71% of the total variance across the item pool.
• Factor Loadings: Individual standardized item loadings across their assigned latent dimensions were robust, ranging from 0.460 to 1.029, with no significant cross-loadings above 0.35, supporting a clean three-dimensional structural separation.

Confirmatory Factor Analysis (CFA)

To verify the structural integrity of this three-dimensional model, CFA was conducted on the second independent validation sample ($n = 300$) using maximum likelihood estimation in structural equation modeling software (AMOS). Multiple goodness-of-fit indices were evaluated against standard psychometric criteria:

While incremental fit statistics (CFI = 0.871, TLI = 0.863) fell slightly below the conventional 0.90 standard, this pattern is frequently encountered in complex, 43-item behavioral scales validated in specialized professional populations. The favorable $\chi^2/df$ ratio (2.839), low RMR (0.041), and acceptable RMSEA (0.078), combined with strong composite reliability values ($> 0.95$), support the factorial validity of the tripartite model in nursing research.

Instrument / Measurement Tool

The NPCS is structured as an operational assessment tool suited for clinical environments, academic research, and organizational benchmarking.

• Test Type: Standardized, self-report psychological rating scale.
• Primary Target Population: Registered nurses, clinical nurse specialists, nurse managers, and healthcare professionals working in hospital or outpatient settings.
• Format: 43 items organized across three distinct subscale domains.
• Original Language: Chinese (Simplified).
• Administration Mode: Self-administered; compatible with paper-and-pencil formats, hospital intranet portals, and mobile psychometric survey software.
• Estimated Completion Time: Approximately 10 to 15 minutes.
• Response Continuum: Multi-point Likert response scale measuring degree of endorsement across each positive psychological statement.
• Subscale Scoring Distribution:
  • Work Task-Oriented Psychological Capital: Evaluates task self-efficacy, clinical fortitude, operational resilience, and clinical problem-solving.
  • Interpersonal Relationship-Oriented Psychological Capital: Evaluates humanistic care, therapeutic alliance capability, peer solidarity, and conflict mediation.
  • Learning Development-Oriented Psychological Capital: Evaluates developmental adaptability, knowledge pursuit, and critical clinical self-reflection.
• Scoring and Interpretation Protocols: Items within each subscale are summed and averaged to generate individual subscale indices, alongside a cumulative global Psychological Capital composite score. Higher scores reflect greater psychological resources, higher occupational resilience, and elevated resistance to clinical burnout.

Permissions & Fee and Test Year

• Publication Year: The scale development, psychometric evaluation, and structural validation study was published in 2023 in the open-access peer-reviewed journal BMC Nursing.
• Copyright & Intellectual Property: The conceptual framework, structural model, and original psychometric items remain the intellectual property of the authoring researchers (Xiangyu Lu, Lina Wang, Guifang Xu, Haixia Teng, Jing Li, and Yufang Guo) and the publisher (BioMed Central / Springer Nature).
• Academic Research Usage: The scale is accessible for non-commercial academic research, institutional hospital evaluations, and pedagogical investigations upon appropriate academic citation of the primary development study.
• Licensing and Commercial Applications: Commercial deployments, inclusion in proprietary enterprise software platforms, or large-scale corporate consulting applications require formal permission from the corresponding author.
• Acquisition of Complete Scale Materials: Researchers wishing to acquire the complete, official 43-item inventory in its original Chinese text, alongside approved translation protocols, should direct inquiries to the corresponding author, Prof. Yufang Guo, at [email protected].

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Items of the Scale