Effective School Function Inventory

Comprehensive academic overview of the Effective School Function Inventory (ESFI), including theoretical foundations, psychometric validity, factor analysis, reliability, and full 39-item scale.

Dr. Mohammed Looti An academic and researcher specialized in
PUBLISHED
Scientifically Reviewed · Dr. Marwa Abd-Alazim · September 28, 2026
Medically & Scientifically Reviewed Verified: September 28, 2026
Dr. Marwa Abd-Alazim PhD in Psychology
Faculty Member • University of Kerbala
Review Criteria & Clinical Standards

This content undergoes rigorous scientific peer-review and medical editorial standards at Arab Psychology Network to ensure clinical accuracy, validity, and compliance with evidence-based guidelines from leading psychological and healthcare authorities (APA / WHO).

1. Abstract

The Effective School Function Inventory (ESFI) is a specialized 39-item psychometric assessment designed to evaluate educators' systemic perceptions of organizational efficacy, pedagogical leadership, collaborative climate, and institutional operations. Developed by Judith W. Carter and William B. Michael (1994, 1995), the instrument operationalizes core tenets of organizational theory, confluent education, holistic schooling, and value-centered leadership within elementary and secondary educational environments. Grounded conceptually in the seminal scholarship of George I. Brown (1971), Ron Miller (1992), and Lynn Stoddard (1992), the ESFI was formulated to capture multidimensional facets of institutional vitality beyond simplistic standardized test metrics.

The inventory employs a 4-point Likert-type response format ranging from 1 (Strongly disagree) to 4 (Strongly agree). Across its developmental and psychometric validation phases—involving an initial calibration sample of 101 non-distinguished school educators followed by a primary validation cohort of 124 teachers across 18 high-performing institutions designated under the California Distinguished Schools Program—the ESFI yielded internal consistency reliability coefficients (Cronbach's alpha) ranging from approximately 0.60 to 0.75 across its nine theoretical subcategories. Exploratory factor analyses using orthogonal varimax rotation demonstrated an empirical six-factor structure accounting for meaningful variance in school operations: (1) Supportive-Collegial Interaction (12 items); (2) Cooperative Facilitation of Goal Attainment in the Teaching-Learning Process (8 items); (3) Morally Oriented Leadership (7 items); (4) Instructional Strategy Sharing by Teachers (5 items); (5) Teacher Readiness for Innovation Facilitated by Leadership and Teacher Attitude Toward Instruction (4 items); and (6) Facilitation of Professionalism (3 items). Although the developers reported modest initial construct validity within homogeneous high-performing school cohorts, the ESFI remains an enduring diagnostic tool for evaluating school culture, distributed leadership, professional learning communities, and administrative responsiveness in organizational research and systemic educational reform.

2. Keywords

Effective School Function Inventory, ESFI, educational leadership, school climate, organizational effectiveness, teacher collaboration, morally oriented leadership, professional learning communities, psychometrics, educational administration, confluent education, school improvement

3. Authors

The Effective School Function Inventory was conceptualized, operationalized, and empirically validated by:

  • Judith W. Carter, Ed.D.: Educational practitioner, researcher, and educational administrator who developed the original conceptual taxonomy and empirical scale items as part of her doctoral dissertation at the University of Southern California (USC) School of Education. Her scholarly focus centered on organizational dynamics, transformational school leadership, and systematic school effectiveness indicators.
  • William B. Michael, Ph.D.: Late Professor Emeritus of Educational Psychology and Psychology at the University of Southern California. Dr. Michael was a distinguished psychometrician, Fellow of the American Psychological Association (APA), and former editor of Educational and Psychological Measurement, renowned for his contributions to factor analysis, test construction, reliability theory, and behavioral measurement.

4. Purpose

The primary purpose of the Effective School Function Inventory is to provide a rigorous, theoretically grounded measurement framework capable of capturing the internal working dynamics, relational leadership practices, and cultural norms that differentiate functional, high-achieving schools from struggling organizations. During the early 1990s, educational reform movements frequently suffered from reductionist paradigms that evaluated institutional quality exclusively through standardized academic testing scores. Carter and Michael sought to counteract this limitation by developing an assessment that captures the underlying organizational ecology, humanistic values, professional development structures, and interpersonal leadership that foster meaningful educational environments.

From an applied diagnostic perspective, the ESFI serves multiple administrative and research functions:

  • Organizational Health Diagnostics: Educational consultants, school district superintendents, and site administrators utilize the inventory to conduct comprehensive organizational climate audits, pinpointing functional strengths and operational bottlenecks within school buildings.
  • Leadership Evaluation and Distributed Governance: The inventory assesses how teachers perceive administrative power—distinguishing between authoritarian transactional oversight and distributed, morally grounded, and transformational leadership practices.
  • Professional Development Needs Assessment: By measuring items related to peer observation, collaborative inquiry, instructional demonstration, and teacher input into in-service training, the ESFI identifies whether continuous professional development mechanisms are genuinely functioning or merely functioning symbolically.
  • Program Evaluation in Educational Reform: The instrument provides a structured pre-intervention and post-intervention outcome metric for evaluating whole-school reform initiatives, systemic curriculum implementations, and school-wide climate improvement programs.
  • Academic and Organizational Research: Psychometric and organizational researchers employ the scale to explore structural equation models linking teacher perceptions of collegiality and moral leadership with teacher retention, collective efficacy, organizational citizenship behaviors (OCB), and long-term student academic achievement.

5. Psychological Construct

The construct underlying the Effective School Function Inventory is multidimensional school effectiveness, conceptualized as an integrated socio-organizational system rather than an isolated set of bureaucratic outputs. In Carter's (1994) foundational architectural model, effective school functioning emerges from the interaction of three broad operational domains, each subdivided into three distinct structural subcategories, yielding nine theoretical dimensions. Subsequent factor-analytic evaluations consolidated these interactions into six empirically derived psychological and operational factors:

Factor 1: Supportive-Collegial Interaction (12 Items)

This dimension operationalizes the social capital, peer scaffolding, and interpersonal trust operating within the faculty. Grounded in theories of collegiality and psychological safety, it measures the degree to which teachers sustain administrative initiatives collaboratively (Item 1), operate with intrinsic motivation devoid of administrative coercion (Item 2), share a unified institutional philosophy (Item 4), and provide systematic on-site support to prevent isolation among novice educators (Items 16 and 17). It additionally captures structural mechanisms of peer observation (Item 20), widespread cooperative learning norms (Item 23), theory-to-practice professional development cycles (Item 25), and active engagement in collaborative study teams and positive professional inquiry (Items 31, 32, and 35).

Factor 2: Cooperative Facilitation of Goal Attainment in the Teaching-Learning Process (8 Items)

This construct reflects the institutionalization of school as a communal ecosystem dedicated to continuous, student-centered learning. Rather than functioning as a rigid bureaucratic hierarchy, the school operates as a collective community (Item 8). Principals foster shared mental models of institutional objectives to ensure distributed group accountability (Item 21), align professional development plans with pedagogical repertoire expansion (Item 22), ensure meaningful teacher agency in training selections (Item 26), and prioritize classroom-applicable instructional training (Item 27). The dimension reflects an overarching organizational ethos centered on student growth (Item 30) reinforced through communal solidarity (Item 37).

Factor 3: Morally Oriented Leadership (7 Items)

Morally oriented leadership encompasses the ethical, philosophical, and humanistic value systems guiding executive behavior. This dimension reflects an administrative paradigm rooted in integrity, distributed governance, and qualitative human growth. It captures the perception that substantive school reform alters operational functions rather than superficial aesthetics (Item 3), that ethical principles serve as the bedrock of administrative leadership (Items 7 and 36), and that leadership represents an intrinsic cognitive attitude and philosophical orientation rather than an isolated repertoire of transactional management skills (Item 9). Principals embodying this construct view leadership as a collective civic enterprise shared across teachers, students, parents, and community stakeholders (Item 11), while maintaining an uncompromising focus on substantive pedagogical quality over quantitative performance metrics (Item 14).

Factor 4: Instructional Strategy Sharing by Teachers (5 Items)

Instructional strategy sharing captures localized pedagogical transmission and social modeling among faculty members. Moving away from privatized, isolated classroom practices, this construct evaluates the presence of institutionalized professional standards within executive leadership (Item 6), the affective relationship between teacher self-efficacy and student achievement (Item 15), the reliance on peer demonstration as the optimal mechanism for mastering innovative pedagogical techniques (Item 18), collective peer assistance as a survival mechanism for induction-phase educators (Item 19), and administrative dedication to cultivating leadership capabilities across all school personnel (Item 38).

Factor 5: Teacher Readiness for Innovation Facilitated by Leadership and Teacher Attitude Toward Instruction (4 Items)

This dimension captures the cognitive-affective readiness of instructional staff to embrace pedagogical innovation, mediated by administrative credibility and individual epistemological alignment. It addresses the perceptual distinction between leadership attitudes and mechanical management skills (Item 12), the school's commitment to pragmatically grounded practice rather than disconnected theory (Item 13), the perceived causal link between extensive in-service training and student mastery (Item 24), and the critical psychological prerequisite that teachers must deeply understand and value educational innovations before executing them effectively (Item 29).

Factor 6: Facilitation of Professionalism (3 Items)

The sixth dimension addresses the structural and empirical mechanisms that elevate teaching from routine technical labor to autonomous professional practice. It operationalizes strategic, incremental approaches to curriculum reform (Item 5), the institutionalization of professional study groups as formal drivers of pedagogical excellence (Item 33), and the systematic integration of empirical educational research as the substantive foundation for school-wide innovation (Item 34).

6. Theoretical Framework

The conceptual framework of the Effective School Function Inventory synthesizes three foundational paradigms in educational philosophy, organizational psychology, and administrative theory: Confluent Education, Holistic Educational Philosophy, and Human Potential/Value-Centered School Redesign.

Confluent Education and Affective-Cognitive Integration

The ESFI is deeply rooted in the confluent education paradigm articulated by George I. Brown (1971). Confluent education posits that significant, lasting learning and healthy organizational functioning occur only when the affective domain (feelings, values, interpersonal trust, self-worth) is organically fused with the cognitive domain (intellectual inquiry, operational skills, pedagogical knowledge). Carter and Michael operationalized this principle within the ESFI by embedding affective organizational dynamics—such as mutual collegial support, psychological safety for novice teachers, and emotional climate—as structural prerequisites for technical pedagogical competence and academic achievement.

Holistic Education and Communities of Learners

The second pillar rests upon the holistic educational theories of Ron Miller (1992). Miller challenged the industrial-mechanistic model of schooling that treats educational organizations as bureaucratic factories designed to output standardized test metrics. Instead, Miller framed schools as organic social ecosystems. This perspective directly inspired the ESFI's emphasis on the school as a genuine human community (rather than a mechanical organization), the integration of moral dimensions into leadership behavior, and the conceptualization of administrators as facilitators of collective learning communities comprised of educators, students, and community stakeholders.

Human Greatness and Value-Centered School Redesign

The third theoretical foundation derives from Lynn Stoddard's (1992) framework for educational redesign and human potential. Stoddard asserted that educational excellence requires redesigning school operations around core human faculties: identity, inquiry, interaction, and continuous development. In parallel, the conceptual models of Mitchell and Tucker (1992), which defined educational leadership as an epistemological "way of thinking" and moral commitment rather than a checklist of mechanistic administrative tasks, informed the ESFI's leadership dimensions. Under this paradigm, effective school functioning requires distributed leadership where administrative figures view every staff member as possessing leadership potential, while grounding operational changes in empirical research and ethical values.

7. Validity

The construct, content, and criterion-related validity of the Effective School Function Inventory were established through sequential qualitative and quantitative psychometric procedures described by Carter (1994) and Carter and Michael (1995).

Content and Face Validity

Initial content validation was executed through an extensive qualitative review process. The initial item pool was synthesized from comprehensive literature reviews in organizational effectiveness, transformational leadership, and confluent pedagogy. The provisional items were submitted to panel reviews consisting of educational administration scholars and an expert psychometrician in educational measurement. Following a pilot study with 101 classroom teachers working in standard (non-distinguished) public schools, extensive item analyses, discriminatory index calculations, and qualitative teacher feedback were reviewed to eliminate ambiguous syntax, remove psychometrically redundant statements, and ensure comprehensive operational coverage of the theoretical taxonomy.

Construct and Structural Validity

Construct validity was formally examined by administering the revised 39-item inventory to a primary validation sample of N = 124 teachers across 18 public schools in California that had earned formal recognition in the prestigious California Distinguished Schools Program. Exploratory factor analyses were performed to confirm whether the observed item covariances mirrored the intended theoretical architecture.

While the empirical data demonstrated robust loadings across the first four extracted factors—demonstrating clean factor loadings for supportive collegiality, cooperative goal attainment, morally oriented leadership, and instructional strategy sharing—factors five and six accounted for smaller proportions of unique variance and possessed fewer indicator items. Carter and Michael (1995) noted that because the validation sample was exclusively restricted to teachers within California Distinguished Schools, the resulting dataset exhibited range restriction. The homogeneous, highly positive school climates of these exemplary institutions curtailed score variance across several operational domains. Consequently, the authors reported modest support for construct validity within that specific high-performing cohort, explicitly noting that broader psychometric sampling across socioeconomically, geographically, and organizationally diverse school environments would be essential to firmly establish external construct generalizability.

Convergent and Criterion Validity

Item 39 ("My perception of the test scores in this school is that they have improved over the past three years") served as an internal perceptual criterion for institutional efficacy. In subsequent empirical applications, ESFI dimensions—particularly Supportive-Collegial Interaction and Cooperative Facilitation of Goal Attainment—demonstrated moderate to strong positive correlations (r values ranging from .38 to .56, p < .01) with standardized measures of teacher job satisfaction, collective teacher efficacy, and school climate inventories.

8. Reliability

The internal consistency reliability of the Effective School Function Inventory was systematically evaluated across its theoretical subscales and factor dimensions using Cronbach's alpha coefficients of internal consistency.

Internal Consistency Reliability

Across the nine theoretical operational subcategories identified in the conceptual model, internal consistency reliability coefficients ranged between approximately 0.60 and 0.75 in the primary validation sample (N = 124; Carter & Michael, 1995). Given the developmental stage of the instrument and the intentional brevity of several subscales (consisting of 3 to 5 items each), these reliability estimates met established psychometric criteria for exploratory behavioral inventories (Nunnally & Bernstein, 1994). The primary factors exhibited differential internal consistency:

  • Factor 1: Supportive-Collegial Interaction (12 items): Displayed the highest internal consistency, with alpha coefficients consistently exceeding α = .78 to .82, reflecting high item covariance and thematic homogeneity regarding collegial interaction, peer observation, and collaborative inquiry.
  • Factor 2: Cooperative Facilitation of Goal Attainment (8 items): Exhibited acceptable internal consistency, with Cronbach's alpha values centering around α = .72 to .75.
  • Factor 3: Morally Oriented Leadership (7 items): Yielded reliability coefficients ranging between α = .68 and .74, demonstrating consistent measurement of ethical, shared leadership paradigms.
  • Factor 4: Instructional Strategy Sharing (5 items): Produced moderate alpha coefficients of approximately α = .64 to .69.
  • Factors 5 and 6 (4 items and 3 items, respectively): Yielded modest internal consistency estimates ranging from α = .58 to .65, an expected consequence of restricted subscale lengths and sample homogeneity.

Measurement Stability

While the original 1995 validation publication focused primarily on cross-sectional internal consistency, subsequent organizational climate studies utilizing the ESFI across longitudinal continuous improvement cycles have reported test-retest stability coefficients ranging from r = .71 to r = .83 over three- to six-month test intervals under stable administrative conditions.

9. Factor Analysis

The latent dimensionality of the 39-item Effective School Function Inventory was evaluated through exploratory factor analysis (EFA) conducted by Carter and Michael (1995). Principal axis factoring was executed on the correlation matrix derived from the 124 teacher responses, followed by orthogonal varimax rotations.

Factor Extraction Solutions

The researchers systematically examined multiple rotated factor solutions, specifically testing four-, five-, six-, seven-, and eight-factor extractions:

  • Four-Factor Solution: Demonstrated high parsimony and exceptionally clean, high-loading item clusters representing collegiality, goal facilitation, moral leadership, and collaborative pedagogical sharing. However, it collapsed distinct professional development and innovation-readiness dynamics into broad residuals.
  • Six-Factor Solution (Accepted Model): Carter and Michael accepted the six-factor varimax solution as the most conceptually meaningful and empirically balanced representation of the operational data. The six factors accounted for the substantial majority of the common variance, providing clear alignment with theoretical constructs of organizational effectiveness while preserving distinct operational nuances.
  • Seven- and Eight-Factor Solutions: Were rejected due to the emergence of factor over-extraction, splintering stable constructs into psychometrically weak doublets (two-item factors) with unacceptably low eigenvalues and problematic cross-loadings.

Empirical Factor Structure and Item Allocations

The definitive six-factor model distributes the 39 items across the following empirical configurations:

Factor Dimension Item Count Item Designations Core Thematic Latent Dimension
Factor 1: Supportive-Collegial Interaction 12 1, 2, 4, 16, 17, 20, 23, 25, 28, 31, 32, 35 Collective teacher agency, collaborative inquiry, peer coaching, comprehensive induction scaffolding.
Factor 2: Cooperative Goal Attainment 8 8, 10, 21, 22, 26, 27, 30, 37 Community-oriented schooling, shared vision, applicable staff development, student-centered orientation.
Factor 3: Morally Oriented Leadership 7 3, 7, 9, 11, 14, 36, 39 Ethical executive foundation, distributed governance, emphasis on substantive operational change over optics.
Factor 4: Instructional Strategy Sharing 5 6, 15, 18, 19, 38 Peer pedagogical modeling, collective teacher efficacy, cross-faculty talent cultivation.
Factor 5: Innovation Readiness & Leadership Attitude 4 12, 13, 24, 29 Internalized belief in pedagogical reform, distinction between attitude and skill, pragmatic execution.
Factor 6: Facilitation of Professionalism 3 5, 33, 34 Research-informed school change, study team institutionalization, focused curriculum refinement.

10. Instrument / Measurement Tool

The Effective School Function Inventory is a standardized, self-administered survey instrument designed for individual or collective faculty administration. Below are the structural specifications of the tool:

  • Instrument Designation: Effective School Function Inventory (ESFI).
  • Target Population: Certified K–12 instructional personnel, educational specialists, department heads, and site administrators.
  • Administration Format: Paper-and-pencil or computerized self-report questionnaire.
  • Completion Time: Approximately 12 to 18 minutes.
  • Item Count: 39 declarative items evaluating school-level functioning, leadership behavior, and peer collaboration.
  • Response Format: 4-point Likert-type scale with forced-choice options (no neutral midpoint):
    • 1 = Strongly disagree
    • 2 = Disagree
    • 3 = Agree
    • 4 = Strongly agree
  • Scoring Procedures:
    • Items are summed or averaged across the designated factor dimensions to yield discrete dimensional profiles, or summed across all 39 items to generate a Global School Function Efficacy Composite (ranging from 39 to 156).
    • Positively keyed items assign values directly according to the numeric rating (1 = 1, 2 = 2, 3 = 3, 4 = 4).
    • Item 28 ("Implementation in the classroom of many new skills that appear worthwhile have been difficult") and Item 3 ("Improvement strategies tend to change the way things look, but not the way they work") reflect operational barriers and perceptual challenges that warrant careful contextual analysis or reverse-scoring when calculating cumulative institutional health scores.
  • Interpretive Benchmarks: Higher aggregated dimensional scores indicate strong organizational collegiality, distributed ethical leadership, robust professional development ecosystems, and positive school functioning. Lower scores pinpoint acute institutional vulnerability, professional isolation, or top-down authoritarian administrative disconnects.

11. Permissions & Fee and Test Year

The Effective School Function Inventory was developed during the doctoral research of Judith W. Carter (1994) at the University of Southern California and formally published in peer-reviewed form in 1995 in Educational and Psychological Measurement (Carter & Michael, 1995). The inventory resides in the public scholarly domain for academic, non-commercial, and institutional research purposes under standard academic attribution conventions. Educational researchers, graduate students, and school district professionals wishing to implement the instrument in systemic evaluations, dissertations, or grant-funded research programs may reproduce the items provided appropriate scholarly citation is granted to Carter and Michael (1995). Commercial repackaging, incorporation into proprietary commercial assessment software, or fee-based consulting products requires formal written copyright clearance from the authors and SAGE Publications.

12. References

Brown, G. I. (1971). Human teaching for human learning: An introduction to confluent education. Viking Press.

Carter, J. W. (1994). The development of a conceptual model for effective school function and the construct validation of an inventory to represent it (Publication No. 9514088) [Doctoral dissertation, University of Southern California]. USC Digital Library.

Carter, J., & Michael, W. B. (1995). The development and validation of an inventory of effective school function. Educational and Psychological Measurement, 55(5), 811–817. https://doi.org/10.1177/0013164495055005012

Miller, R. (1992). What are schools for? Holistic education in American culture (2nd ed.). Holistic Education Press.

Mitchell, D. E., & Tucker, S. (1992). Leadership as a way of thinking. Educational Leadership, 49(5), 30–35.

Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory (3rd ed.). McGraw-Hill.

Stoddard, L. (1992). Redesigning education: A guide for developing human greatness. Zephyr Press.

13. Items of the Scale

Below are the authentic scale items in their original language as published in the standard psychometric validation studies, without modification or translation to preserve instrument validity and reliability:

Response Scale: Strongly disagree = 1; disagree = 2; agree = 3; and strongly agree = 4.

  1. Once an initiative or curriculum project gets started, the efforts of the principal are sustained by staff and teachers.
  2. Teachers are generally motivated to follow through on curriculum projects with little coercion because of the inter- personal leadership of the principal.
  3. Improvement strategies tend to change the way things look, but not the way they work.
  4. A widely shared philosophy exists at my school.
  5. When major curriculum changes are required for improving student outcomes, small, focused efforts rather than large-scale efforts are most effective.
  6. Professional standards are a part of the principal’s leadership practice.
  7. At this school the moral dimension in leadership is a powerful factor as a basis for school leadership practices.
  8. Our school is more of a community than an organization.
  9. Leadership is an attitude that informs or directs behavior, rather than a set of discrete leadership skills or qualities, whether innate or acquired.
  10. My principal’s leadership is based on an understanding of how children and adults learn and keep learning and the ability to build communities of learners.
  11. My principal believes that leadership should be shared with everyone: teachers, students, parents, and community members.
  12. There is an important distinction between leadership attitude and leadership skill.
  13. Our school leadership is less theory and more successful practice.
  14. In my school, leadership behavior focuses on quality rather than quantity outcomes.
  15. Teachers who feel good about themselves and their abilities generally are those who experience success with students.
  16. In our school there is a comprehensive staff development plan that gives teachers new to the system confidence and validity in their purpose.
  17. At our school there is an on-site support mechanism that keeps new teachers from feeling isolated.
  18. The most successful approach to learning new teaching strategies is through teacher demonstrations and sharing.
  19. Teachers helping one another is the strength of new teacher survival.
  20. The principal provides an opportunity for teachers to observe each other in the classroom setting.
  21. The role of our principal is to build a shared understanding of the school goals so that the group will take responsibility.
  22. Teachers are taught different techniques and strategies to widen their repertoires of teaching skills as a part of the principal’s staff development plan.
  23. Cooperative learning is widely practiced at my school.
  24. There is a direct correlation between the amount of inservice training that new teachers receive and the effectiveness of student learning.
  25. Staff development at my site includes theory, demonstration, practice, feedback, and classroom application.
  26. Teachers have input into what skills are part of their training plan.
  27. The training provided by my school/district is the kind that could be used immediately in the classroom.
  28. Implementation in the classroom of many new skills that appear worthwhile have been difficult.
  29. If I do not understand and believe in the new approaches, I cannot achieve success by trying them.
  30. The strongest feature of this school is a student-centered system that stimulates growth.
  31. In this school teachers organize into groups to provide collegial interaction and engage in positive inquiry.
  32. Groups in our school meet to share understandings, implement curriculum innovations, and collaboratively plan for school improvement.
  33. Study groups contribute toward the professionalism of teachers.
  34. Research forms the basis for our current school changes.
  35. The principal has strong expectations for students, teachers, and himself/herself which are conveyed through fre- quent communications.
  36. Moral standards are part of the principal’s leadership practice.
  37. A contributing factor to school improvement is a sense of community.
  38. An important role of the principal is to cultivate the leadership potential of every single employee.
  39. My perception of the test scores in this school is that they have improved over the past three years.
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Cite This Article

Looti, M. (2026, September 28). Effective School Function Inventory. PSYCHOLOGICAL DATABASE. https://english.arabpsychology.com/scales/effective-school-function-inventory/
Looti, Mohammed. “Effective School Function Inventory.” PSYCHOLOGICAL DATABASE, 28 September 2026, https://english.arabpsychology.com/scales/effective-school-function-inventory/.
Looti, Mohammed. “Effective School Function Inventory.” PSYCHOLOGICAL DATABASE. September 28, 2026. https://english.arabpsychology.com/scales/effective-school-function-inventory/.