Jones and Crandall’s (1986) Self-Actualization Index (SAI)

Abstract

The Self-Actualization Index (SAI), developed by Jones and Crandall in 1986, is a concise, 15-item self-report measure designed to assess the extent to which an individual exhibits characteristics associated with self-actualization, as conceptualized primarily within humanistic psychology. This instrument provides a quick, psychometrically sound alternative to longer measures, such as the Personal Orientation Inventory (POI), focusing on key dimensions like autonomy, spontaneity, emotional acceptance, and acceptance of self and others. The SAI utilizes a Likert-type response format, with several items being reverse-scored to mitigate response bias and ensure that higher total scores consistently reflect greater levels of self-actualization.

Keywords

Self-Actualization Index, SAI, Jones and Crandall, humanistic psychology, Maslow, self-report, psychometrics, personality.

Authors

Alvin Jones, Rick Crandall.

Purpose

The primary purpose of the SAI is to offer a brief, efficient, and reliable measure of self-actualization for use in both research and applied psychological settings. It was specifically developed to address the limitations of lengthy scales, making it suitable for studies where administration time is a critical constraint. The scale aims to quantify the degree of psychological maturity and personal growth achieved by the respondent.

The instrument operationalizes theoretical concepts derived from humanistic theorists, particularly Abraham Maslow, focusing on the individual’s ability to live fully in the present, maintain authenticity, and possess strong feelings of self-acceptance and purpose. It is designed to capture the core essence of the self-actualizing tendency.

Construct

The SAI measures the construct of self-actualization, defined as the realization or fulfillment of one’s talents and potentialities, especially considered as a fundamental drive or need present in every individual. This construct encompasses several theoretical dimensions, including acceptance of self and others, spontaneity, autonomy, resistance to enculturation, and the capacity for deep interpersonal relations.

The 15 items reflect internal states and behaviors indicative of high psychological functioning, such as freedom from shame regarding emotions, trust in others, independence from external approval, and having a dedicated mission in life. The scale assesses the extent to which an individual operates based on intrinsic motivations rather than deficiency needs, which is central to Maslow’s hierarchy of needs framework.

Validity

Initial validation studies demonstrated that the SAI possesses robust construct validity. This was primarily established through significant positive correlations with established, longer measures of the construct, notably the Personal Orientation Inventory (POI).

Furthermore, the SAI showed expected relationships with other relevant personality measures, demonstrating concurrent and predictive validity. Specifically, higher SAI scores tend to correlate positively with measures of psychological well-being, adjustment, and emotional stability, while correlating negatively with measures of psychopathology or defensiveness. The instrument effectively differentiates between samples hypothesized to differ in their level of self-actualization.

Reliability

The reliability of the Self-Actualization Index is generally reported as satisfactory for a brief scale. Measures of internal consistency, typically using Cronbach’s alpha, have consistently yielded coefficients in the acceptable range (often above .70 across various populations and studies).

Test-retest reliability has also been utilized to confirm the stability of the measure over short periods, indicating that the construct being measured is relatively stable over time. These findings suggest that the SAI provides stable and consistent measurement of the self-actualization construct across different administrations, making it a reliable tool for research.

Factor Analysis

While the SAI is often utilized as a unidimensional scale yielding a single overall score for self-actualization, original research suggested that the 15 items primarily load onto a single dominant factor representing general self-actualization, supporting its use as a brief index.

Subsequent exploratory and confirmatory factor analysis in diverse cultural and demographic contexts has sometimes suggested the presence of minor sub-factors, such as “autonomy” and “acceptance.” However, due to its brevity and original design intent, the scale is most commonly scored and interpreted as a holistic, single-factor index of the construct.

Instrument

Test Type: Self-report questionnaire; Personality inventory.

Format: 15 items utilizing a Likert-type scale, typically 4-point or 5-point (e.g., 1=Strongly Disagree to 5=Strongly Agree).

Language Available: Primarily English; translations exist in various European and Asian languages for non-commercial research purposes.

Population Group: General population; clinical and non-clinical samples.

Age Group: Adolescents (16+) and Adults.

Population Details: Widely used in college student populations during initial validation, but applicable across diverse adult groups researching personality development and well-being.

Test Methodology: Respondents rate their agreement with each statement. Scoring involves summing the responses, ensuring that reverse-scored items (marked with an asterisk) are appropriately transformed so that higher scores consistently indicate a higher degree of self-actualization.

Keywords

Personality assessment, psychological well-being, autonomy, human potential, measurement index, Crandall, Jones, Likert scale.

Authors

Author ORCID Identifier: Not publicly standardized/available for original publication.

Affiliation Email addresses: Not available.

Correspondence Address: Refer to the Department of Psychology, University of Central Missouri (for Jones) and University of Kansas (for Crandall) at the time of publication.

Permissions & Fee and Test Year

The SAI was first published in 1986 in the journal Personality and Social Psychology Bulletin. Given its publication in a peer-reviewed academic journal, the scale items are generally available for non-commercial research and educational use, provided proper citation is utilized. Researchers intending commercial use or extensive modification should consult the original authors or publishing body, though typically no fee is associated with this brief academic instrument.

Reference’s

Jones, A., & Crandall, R. (1986). Validation of a short index of self-actualization. Personality and Social Psychology Bulletin, 12(1), 63-73.

Crandall, R., & Jones, A. (1987). The Self-Actualization Index: Further analysis and application. Journal of Social Behavior and Personality, 2(2), 273-282.

Maslow, A. H. (1968). Toward a Psychology of Being (2nd ed.). Van Nostrand. (Theoretical foundation).

Items of the Jones and Crandall’s (1986) Self-Actualization Index (SAI)

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

1. I do not feel ashamed of any of my emotions.
2. * I feel I must do what others expect me to do.
3. I believe that people are essentially good and can be trusted.
4. I feel free to be angry at those I love.
5. * It is always necessary that others approve of what I do.
6. * I don’t accept my own weaknesses.
7. I can like people without ha‎ving to approve of them.
8. * I fear failure.
9. * I avoid attempts to analyze and simplify complex domains.
10. It is better to be yourself than to be popular.
11. * I have no mission in life to which I feel especially dedicated.
12. I can express my feelings even when they may result in undesirable consequences.
13. * I do not feel responsible to help anybody.
14. * I am bothered by fears of being inadequate.
15. I am loved because I give love.

Scoring Note: Results for questions marked with an asterisk (*) are reverse-scored so that more self-actualizing responses produce higher scores, i.e., reverse score = 5 − raw score (assuming a 1-4 scale) or appropriate transformation based on the specific Likert range utilized.