Religious Commitment Inventory (RCI-10)

Abstract

The Religious Commitment Inventory (RCI-10) is a brief, 10-item instrument designed by Worthington et al. in 2003 to provide a psychometrically sound measure of religious commitment for use in research and counseling settings. It aims to capture the degree to which an individual adheres to their religious values, practices, and identity across various faith traditions. The scale exhibits strong internal consistency and has been widely adopted in studies examining the relationship between religiosity and psychological variables, such as forgiveness, coping mechanisms, and mental health outcomes.

Keywords

Religious commitment, RCI-10, intrinsic religiosity, spirituality, psychological assessment, inventory, faith, counseling psychology, psychometrics, measurement scale.

Authors

Worthington, E.L. Jr., Wade, N.G., Hight, T.L., Ripley, J.S., McCullough, M.E., Berry, J.W., Schmitt, M.M., Berry, J. T., Bursley, K.A., & O’Connor, L.

Purpose

The primary purpose of the RCI-10 is to offer a concise, reliable, and valid measure of religious commitment that is suitable for large-scale research projects and clinical applications in counseling psychology. Before its development, many existing measures of religiosity were overly lengthy, lacked cross-denominational applicability, or focused too heavily on specific doctrines rather than the general concept of commitment.

The scale was specifically constructed to be brief, facilitating its inclusion in test batteries where time constraints are a factor, without compromising its robust psychological assessment properties. It allows researchers to quantify the intensity and breadth of an individual’s commitment to their faith, serving as a crucial variable in studies linking spirituality to various aspects of well-being.

Construct

The RCI-10 measures religious commitment, which is defined operationally as the strength of an individual’s adherence to their religious values, beliefs, and practices. This construct is typically understood to encompass both intrinsic and extrinsic dimensions of religiosity, focusing on how religion permeates and structures the individual’s daily life.

The 10 items of the RCI-10 cover multiple facets of commitment, including cognitive commitment (e.g., understanding faith), behavioral commitment (e.g., reading, financial contribution, organizational involvement), and affective commitment (e.g., enjoyment of religious activities). This comprehensive approach ensures that the scale captures commitment as a multidimensional construct, reflecting both private spiritual practices and public religious engagement.

Validity

The validity of the RCI-10 was rigorously established during its development. Content validity was ensured through expert review and item selection designed to cover the breadth of religious commitment across different traditions. Construct validity was demonstrated through several methods, including correlations with established measures of related constructs, such as intrinsic religiosity (high positive correlation) and spirituality measures. Conversely, correlations with unrelated constructs, such as social desirability, were found to be low, indicating strong discriminant validity.

Furthermore, the scale has shown strong predictive validity, consistently correlating with positive psychological outcomes, including better coping mechanisms, higher life satisfaction, and lower levels of distress, especially in clinical and transitional populations. The consistent performance of the RCI-10 across diverse samples reinforces its utility as a valid measure of the core construct.

Reliability

The RCI-10 is known for its high level of internal consistency, a key measure of reliability. Across numerous studies and diverse samples, the scale consistently yields high Cronbach’s alpha coefficients, typically ranging from .92 to .95, indicating that the 10 items measure a unified underlying construct effectively. This high reliability suggests that the scale is highly precise and dependable in its measurement of religious commitment.

In addition to internal consistency, test-retest reliability has been established, demonstrating that scores remain stable over time when measuring the same individual. This stability is crucial for longitudinal research and clinical tracking, confirming that the RCI-10 is not unduly influenced by transient psychological states.

Factor Analysis

Initial developmental studies by Worthington et al. (2003) employed exploratory and confirmatory factor analysis to confirm the structure of the RCI-10. While some analyses support a strong, single-factor structure representing overall religious commitment, others suggest a two-factor model, reflecting the division between Intrapersonal (Private) and Interpersonal (Public) commitment.

The two-factor solution often identified includes: (1) Intrapersonal Religious Commitment, which captures private experiences, thoughts, and reflection (e.g., Items 3, 4, 5, 7, 8); and (2) Interpersonal Religious Commitment, which relates to active participation, organizational involvement, and social aspects of faith (e.g., Items 1, 2, 6, 9, 10). Despite the existence of these two distinct facets, the high correlation between the subscales often justifies using the RCI-10 as a unidimensional measure for total commitment score.

Instrument

Test Type: Self-report Psychological Inventory

Format: 10 items rated on a 5-point Likert scale.

Language Available: Primarily English, with translations available and validated in numerous languages globally (e.g., Spanish, Chinese, German).

Population Group: General population; applicable across diverse religious and spiritual affiliations.

Age Group: Adolescents (16+) and Adults.

Population Details: The scale has been validated across various cultural and denominational groups, showing robust psychometric properties in college students, community samples, and clinical populations.

Test Methodology: Respondents indicate how true each statement is of them using the following anchor points: 1=Not at all true of me, 2=Somewhat true of me, 3=Moderately true of me, 4=Mostly true of me, 5=Totally true of me. Total scores range from 10 to 50, with higher scores indicating greater religious commitment.

Keywords

Psychometric scale, religious practices, faith measurement, intrinsic motivation, interpersonal religion, RCI-10, quantitative research, spiritual assessment, validation study.

Authors

Author ORCID Identifier: Information not consistently provided in the original source material for all authors.

Affiliation Email addresses: Information not consistently provided in the original source material.

Correspondence Address: Correspondence is typically directed to the lead author, E.L. Worthington, Jr., at the time of publication: Department of Psychology, Virginia Commonwealth University.

Permissions & Fee and Test Year

Test Year: 2003.

Permissions and Fee: The RCI-10 is generally considered a public domain instrument for academic research purposes, as it was published in a standard academic journal. However, researchers should always cite the original 2003 validation paper. No fee is typically associated with its use in non-commercial research.

The instrument itself was made accessible in various academic publications, including the doctoral thesis by Kidwell (2009). The original PDF containing the scale items and structure can be viewed online via the Iowa State University library repository. The specific location of the instrument is found on page 140 of the following document: http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1928&context=etd.

Reference’s

• Worthington, E.L. Jr., Wade, N.G., Hight, T.L., Ripley, J.S., McCullough, M.E., Berry, J.W., Schmitt, M.M., Berry, J. T., Bursley, K.A., & O’Connor, L. (2003). The Religious Commitment Inventory-10: Development, refinement, and validation of a brief scale for research and counseling. Journal of Counseling Psychology, 50, 84-96.
• Kidwell, Julia E.M., (2009). “Exploring the relationship between religious commitment and forgiveness through quantitative and qualitative study”. Iowa State University. Doctoral Theses and Dissertations. Paper 10891.

Items of the Religious Commitment Inventory (RCI-10)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

1. I often read books and magazines about my faith.
2. I make financial contributions to my religious organization.
3. I spend time trying to grow in understanding of my faith.
4. Religion is especially important to me because it answers many questions about the meaning of life.
5. My religious beliefs lie behind my whole approach to life.
6. I enjoy spending time with others of my religious affiliation.
7. Religious beliefs influence all my dealings in life.
8. It is important to me to spend periods of time in private religious thought and reflection.
9. I enjoy working in the activities of my religious affiliation.
10. I keep well informed about my local religious group and have some influence in its decisions.