Short Index of Self Actualization (SISA)

Abstract

The Short Index of Self Actualization (SISA), also commonly referenced in psychometric literature as the Brief Index of Self-Actualization or the Jones and Crandall Self-Actualization Scale, is a 15-item self-report questionnaire developed by Alvin Jones and Rick Crandall in 1986. Created to address the practical limitations of lengthier legacy instruments—most notably Everett Shostrom’s 150-item Personal Orientation Inventory (POI)—the SISA offers an efficient, theoretically grounded index designed to quantify an individual’s progression toward psychological maturity, autonomy, emotional openness, and personal fulfillment as conceptualized within Abraham Maslow’s humanistic hierarchy of needs. The instrument evaluates core facets of self-actualization, including inner-directedness, time competence, autonomous moral judgment, acceptance of emotional and human vulnerability, and the capacity for intimate, non-judgmental interpersonal relationships. Items are scored along a 4-point Likert response continuum ranging from 1 (Agree) to 4 (Disagree), incorporating both positively and negatively keyed statements to mitigate acquiescence bias. Across numerous empirical investigations encompassing undergraduate, community, psychiatric, and cross-cultural samples, the SISA has exhibited acceptable internal consistency reliability (with Cronbach’s alpha coefficients routinely falling between .65 and .77) and robust test-retest reliability across short timeframes (e.g., r = .69 across a two-week interval). Construct validity is well-supported through convergent relationships with self-esteem, internal locus of control, rational thinking, self-efficacy, and purpose in life, alongside negative associations with neuroticism, psychological distress, social anxiety, and dogmatism. Exploratory and confirmatory factor analytic studies generally indicate either a primary overarching self-actualization factor or a multidimensional four- or five-factor solution reflecting autonomy, emotional awareness, self-acceptance, and interpersonal trust. The SISA remains a standard brief metric in humanistic, personality, organizational, and counseling psychology research.

Keywords

Short Index of Self Actualization, SISA, Self-Actualization, Abraham Maslow, Humanistic Psychology, Alvin Jones, Rick Crandall, Personal Orientation Inventory, Psychological Maturity, Autonomy, Emotional Expression, Psychometrics

Authors

The Short Index of Self Actualization was developed and psychometrically evaluated by Alvin Jones and Rick Crandall. During the initial conceptualization and validation phases of the scale in the mid-1980s, the authors sought to resolve pervasive logistical barriers encountered by behavioral researchers attempting to operationalize humanistic psychological constructs.

• Alvin H. Jones, Jr.: Department of Psychology and behavioral health research specialist, focusing on personality assessment, scale design, and the empirical measurement of humanistic and transpersonal constructs.
• Rick Crandall, Ph.D.: Prominent social psychologist, psychometrician, and independent research consultant whose work centered on well-being, leisure science, social support, and the operationalization of existential and humanistic constructs. Crandall co-edited the landmark volume Handbook of Self-Actualization (Journal of Social Behavior and Personality, 1991) and contributed extensively to measurement methodologies across personality and social psychology.

Purpose

The primary purpose of the Short Index of Self Actualization (SISA) is to provide an empirically valid, parsimonious, and easily administered assessment tool for measuring the degree to which an individual exhibits the attitudes, beliefs, and behavioral orientations characteristic of a self-actualized person. Prior to the development of the SISA in 1986, empirical researchers attempting to study self-actualization were largely constrained to legacy instruments, predominantly Shostrom’s (1964) Personal Orientation Inventory (POI), which contained 150 forced-choice paired items, or Shostrom’s later Personal Orientation Dimensions (POD). Although the POI offered comprehensive multi-scale profiling, its substantial administrative burden (often requiring 30 to 45 minutes to complete) precluded its integration into multi-measure research batteries, large-scale survey research, epidemiologic investigations, and brief clinical screening sessions. Consequently, Jones and Crandall constructed the SISA to capture the psychological core of Maslow’s construct within an economical 15-item format that can be administered in less than five minutes.

In research contexts, the SISA is employed widely across personality psychology, positive psychology, vocational development, organizational behavior, and educational research. Investigators utilize the scale to examine how self-actualization correlates with or predicts occupational satisfaction, transformative leadership styles, creative productivity, resilience under acute organizational stress, academic self-determination, and psychological well-being. Because the scale efficiently differentiates between other-directed compliance and inner-directed self-governance, it frequently serves as an outcome measure in interventions designed to enhance personal autonomy, existential exploration, emotional intelligence, and self-acceptance.

In clinical, counseling, and personal development environments, the SISA serves as an exploratory diagnostic and tracking instrument. Clinicians working from humanistic, existential, person-centered, or Acceptance and Commitment Therapy (ACT) orientations utilize client responses to examine specific developmental blockages, such as excessive reliance on external social validation, fear of experiencing or expressing difficult emotional states (such as anger or sorrow), rigid perfectionism, or existential aimlessness. By tracking changes in SISA scores across the course of psychotherapy, practitioners can quantify improvements in emotional congruence, authentic self-direction, and unconditional self-regard.

Psychological Construct

The psychological construct operationalized by the SISA is self-actualization, defined originally by Kurt Goldstein and substantially expanded by Abraham Maslow as the ongoing realization of one’s latent potentialities, capacities, and talents; the fulfillment of one’s personal mission or vocation; a fuller knowledge of and acceptance of the intrinsic nature of the self; and an unceasing trend toward personal unity, integration, and synergy within the personality. Rather than representing a static end-state or an invulnerable plateau of perfection, self-actualization represents a continuous dynamic developmental trajectory characterized by specific cognitive, emotional, and relational attributes.

The SISA captures several key conceptual dimensions that constitute the holistic construct of self-actualization:

• Autonomy and Inner-Directedness (Resistance to Enculturation): High scorers demonstrate an internal locus of evaluation and psychological freedom from excessive dependency on external approval, societal conformity, or popular consensus. Items such as “It is always necessary that others approve of what I do” (reverse-scored) and “It is better to be yourself than it is to be popular” reflect the individual’s commitment to authentic living, personal conviction, and self-governance even in the face of normative social pressure.
• Emotional Awareness and Affective Openness: Maslow observed that self-actualizing individuals maintain deep awareness and acceptance of their internal emotional landscape, experiencing affective states without repressive guilt or neurotic shame. Items like “I do not feel ashamed of any of my emotions” and “I feel free to be angry at those I love” measure the capacity for affective congruence, emotional honesty, and the psychological freedom to experience and express complex or culturally discouraged emotions within close interpersonal bonds.
• Unconditional Acceptance of Self and Others: Rather than succumbing to harsh self-denigration or rigid, moralistic expectations of others, self-actualizers exhibit deep existential acceptance of human limitations, frailties, and weaknesses. Statements such as “I don’t accept my own weaknesses” (reverse-scored) and “I can like people without having to approve of them” index an individual’s ability to embrace human imperfection without demanding idealized conformity.
• Existential Mission and Meaning-Orientation: A foundational hallmark of the self-actualizing personality is task-centering or devotion to a calling, vocation, or transcendent mission outside oneself. This orientation is evaluated directly through items such as “I have no mission in life to which I feel especially dedicated” (reverse-scored). Individuals possessing a strong existential purpose direct their psychological energies toward enduring values rather than transient egoistic gratification.
• Interpersonal Trust and Social Synergy: Maslow posited that self-actualizing individuals harbor a profound Gemeinschaftsgefühl (social feeling or identification with humanity), perceiving others as intrinsically worthy of trust while simultaneously fostering mutual, non-exploitative affection. Items such as “I believe that people are essentially good and can be trusted” and “I am loved because I can give love” capture this synergistic, benevolent orientation toward the human community.

Theoretical Framework

The SISA is rooted theoretically in humanistic psychology—frequently designated as the “Third Force” in American psychology to distinguish it from Freudian psychoanalysis and Skinnerian behaviorism. The primary theoretical foundation is Abraham Maslow’s (1954, 1968, 1970) holistic-dynamic theory of human motivation, particularly his hierarchical schema of basic needs. According to Maslow, human motivations are arranged along a prepotency gradient comprising physiological needs, safety needs, belongingness and love needs, esteem needs, and ultimately the growth-oriented need for self-actualization.

Maslow differentiated between two fundamental modes of human motivation and functioning: Deficiency-motivation (D-motivation) and Growth-motivation or Being-motivation (B-motivation). In D-motivated states, individuals operate under the compulsion of deficits—seeking security, social belonging, or external prestige to fill an internal void. In contrast, when deficiency needs are relatively gratified, the individual shifts toward B-motivation, wherein thoughts, behaviors, and relationships are guided by intrinsic values such as truth, beauty, goodness, wholeness, aliveness, justice, and self-sufficiency. The SISA was purposefully engineered to differentiate individuals primarily dominated by D-needs (e.g., compulsive adherence to external expectations, crippling fears of inadequacy or failure, and an overwhelming craving for social popularity) from those governed by B-values (e.g., self-honesty, mission dedication, autonomous decision-making, and intrinsic emotional expression).

The instrument also integrates core concepts advanced by Carl Rogers (1959, 1961) regarding the “fully functioning person.” Rogers emphasized organismic valuing, unconditional self-regard, internal locus of evaluation, and openness to experience as defining qualities of psychological maturity. In designing the SISA, Jones and Crandall (1986) drew extensively upon Shostrom’s (1964) operationalization of these theoretical tenets within the POI, selecting items that encapsulated the primary axes of Shostrom’s model: Time Competence (living fully in the present rather than ruminating over the past or dreading the future) and Inner-Directedness (relying upon internal values and self-validation rather than external social pressures).

Validity

The construct validity, convergent validity, and discriminant validity of the Short Index of Self Actualization have been rigorously documented across numerous empirical investigations since its introduction in 1986.

Convergent and Concurrent Validity

In their seminal validation study involving multiple collegiate cohorts, Jones and Crandall (1986) established that the SISA demonstrated statistically significant convergent correlations with established personality and well-being metrics. The SISA correlated positively with Shostrom’s Personal Orientation Inventory, particularly with the overall Time Competence and Inner-Directed scales (with correlations ranging from .50 to .67), confirming that the 15-item brief scale successfully mirrors the psychometric variance captured by the 150-item parent instrument. Furthermore, the authors observed significant positive correlations between SISA scores and measures of self-esteem (such as the Rosenberg Self-Esteem Scale, with r values typically exceeding .50), internal locus of control (Rotter’s I-E Scale), and rational, non-absolutist belief systems.

Watson, Hood, and Morris (1990) conducted a critical evaluation of the scale, examining its associations with measures of psychological health, narcissism, and irrational beliefs. Their findings corroborated that high SISA scores associate significantly with psychological well-being, empathy, and assertiveness. Similarly, Sumerlin and Bundrick (1996, 1998) utilized the SISA within disadvantaged and homeless adult populations, demonstrating that self-actualization scores predicted adaptive coping strategies, lower depressive symptomatology, and elevated subjective well-being despite severe socioeconomic hardship.

Discriminant and Criterion-Related Validity

Discriminant validity has been consistently confirmed by negative associations between the SISA and scales assessing psychological distress, neuroticism, social anxiety, dogmatism, and external locus of control. Jones and Crandall (1986) reported moderate to strong negative correlations between the SISA and measures of neuroticism, interpersonal anxiety, and depressive affect. Self-actualizing respondents do not exhibit elevated scores on scales measuring uncritical social conformity or dogmatic rigidity.

Criterion-related validity was established by Jones and Crandall through known-groups validation: individuals nominated by their peers and clinical supervisors as demonstrating exceptional psychological maturity, independence, and leadership scored significantly higher on the SISA than non-nominated comparison controls (p < .001). Watson et al. (1990) noted, however, that item 15 (“I fear failure”) occasionally exhibited atypical psychometric cross-loadings or anomalous suppression effects within certain sample demographics, leading some subsequent researchers to employ a refined 14-item iteration while confirming overall robust criterion validity.

Reliability

The psychometric reliability of the Short Index of Self Actualization has been thoroughly evaluated across multiple demographic groups and cultural settings.

Internal Consistency Reliability

In the original validation cohorts analyzed by Jones and Crandall (1986), the scale yielded a Cronbach’s alpha internal consistency coefficient of .65 across an initial sample of 317 college undergraduates. Although .65 is modest by contemporary strict thresholds for diagnostic assessments, psychometric theorists (e.g., Crandall & Jones, 1991; Watson et al., 1990) have repeatedly emphasized that Maslow’s self-actualization construct is intrinsically broad, multifaceted, and heterogeneous, encompassing disparate behavioral domains such as cognitive processing, emotional expressiveness, relational dynamics, and existential vocation. Consequently, higher internal consistency values (e.g., alphas exceeding .85) might signal excessive item redundancy at the expense of construct breadth.

Subsequent independent studies have reported internal consistency coefficients ranging generally between .65 and .77:

• Watson, Hood, and Morris (1990) documented an alpha of .68 for the full 15-item scale and .70 when omitting item 15.
• Sumerlin and Bundrick (1996) reported Cronbach’s alphas of .72 to .75 in community and high-stress adult samples.
• Cross-cultural adaptations, including the French-Canadian validation by Lefrançois, Leclerc, Dubé, Hébert, and Gaulin (1997), yielded internal consistency indices between .67 and .74 across diverse adult age groups.

Test-Retest Stability

Temporal stability assessments demonstrate that the SISA reflects a relatively enduring personality orientation rather than transient mood fluctuations. Jones and Crandall (1986) reported a two-week test-retest reliability coefficient of r = .69 (p < .001), indicating adequate stability over time. Extended longitudinal investigations across semester-long college intervals (12 to 16 weeks) have demonstrated stability coefficients between .60 and .66 in non-interventional baseline controls, alongside noticeable upward score trajectories among individuals completing intensive personal growth, human relations, or experiential psychological workshops.

Factor Analysis

The underlying latent dimensional structure of the SISA has been examined using both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), sparking productive theoretical dialogues in psychometric literature.

Exploratory Factor Analyses

In their initial development paper, Jones and Crandall (1986) performed a principal components analysis with varimax rotation, identifying a primary general factor that accounted for the largest portion of shared variance, supplemented by four interpretable sub-dimensions:

1. Autonomy and Independence of External Pressures: Marked by strong positive loadings on items assessing self-direction (e.g., rejecting the mandate to do what others expect, and valuing personal authenticity over social popularity).
2. Emotional Freedom and Openness: Marked by loadings on items reflecting the unashamed experience of affect and the freedom to express anger within intimate relationships.
3. Acceptance of Self and Human Limitation: Loading heavily on items reflecting the acceptance of personal weaknesses and absence of debilitating inadequacy fears.
4. Interpersonal Trust and Benevolence: Loading on items tapping the essential goodness of people and the capacity to engage in reciprocal, unconditional love.

Confirmatory Factor Analyses and Structural Debates

Watson, Hood, and Morris (1990) subjected the SISA to detailed factor-analytic replication. They argued that while the instrument reliably indexes humanistic functioning, several items displayed complex multidimensional loadings. In particular, Item 15 (“I fear failure”) loaded idiosyncratically or weakly on the central actualization dimension, leading Watson et al. to advocate for a 14-item model that demonstrated cleaner factorial separation.

Subsequent confirmatory investigations (e.g., Lefrançois et al., 1997; Sumerlin & Bundrick, 1998) have compared unidimensional (single higher-order factor) versus multi-factor structural models. Fit indices for a single-factor model generally indicate that while a general self-actualization index is empirically defensible for aggregate scoring, a multidimensional hierarchical structure (with a general second-order actualization factor subsuming first-order factors of Autonomy, Emotional Expressiveness, Self-Acceptance, and Interpersonal Trust) provides superior fit indices (e.g., Comparative Fit Index [CFI] > .90, Root Mean Square Error of Approximation [RMSEA] < .06). Standardized factor loadings across studies typically range from .35 to .68 for individual items, reflecting the wide operational scope of Maslow’s original construct.

Instrument / Measurement Tool

The Short Index of Self Actualization (SISA) is a brief self-report psychometric rating scale designed for individual or group administration in pen-and-paper or computerized digital formats.

• Test Type: Self-report personality questionnaire / Humanistic psychological index.
• Target Population: Adolescents (ages 16+) and adults across general, clinical, and organizational populations.
• Administration Time: Approximately 3 to 5 minutes.
• Item Count: 15 items in the original Jones & Crandall (1986) instrument (or 14 items when utilizing the Watson et al., 1990 adaptation).
• Response Scale: 4-point Likert rating scale:
  • 1 = Agree
  • 2 = Somewhat agree
  • 3 = Somewhat disagree
  • 4 = Disagree
• Scoring and Directionality:
  • The instrument incorporates both positively worded items (reflecting self-actualizing characteristics) and negatively worded items (reflecting conformity, emotional shame, or deficiency needs).
  • In published psychometric literature, items are frequently coded with directional designators: (P) indicating that agreement reflects a self-actualized stance, and (N) indicating that agreement reflects non-actualized or reverse-scored functioning (or vice versa, depending on whether the scale is oriented so that high scores indicate high actualization).
  • To compute the total self-actualization score such that higher overall numbers represent greater self-actualization, items must be aligned prior to summation. In the original scoring key of Jones & Crandall (1986), items reflecting actualization are scored directly or reverse-scored so that responses indicating actualized choices receive higher point values (e.g., assigning 4 points to strong actualization and 1 point to non-actualization).
  • Total scores on the 15-item scale can range from 15 to 60, with higher composite scores reflecting greater autonomy, emotional integration, self-acceptance, and psychological maturity.

Permissions & Fee and Test Year

The Short Index of Self Actualization was originally formulated and validated in 1986 by Alvin Jones and Rick Crandall, with additional psychometric analyses published by the authors in 1991. The instrument was placed into the public domain for scholarly, educational, and scientific research purposes within the foundational articles published in Educational and Psychological Measurement (1986) and the Journal of Social Behavior and Personality (1991).

No licensing fee, royalty, or commercial test purchase is required for academic researchers, graduate students, or clinical practitioners utilizing the instrument for non-commercial investigations. Researchers administering the scale are requested to maintain standard academic integrity by citing the primary source publications (Jones & Crandall, 1986; Crandall & Jones, 1991). Commercial deployment within proprietary software, profit-oriented management consulting programs, or commercial diagnostic suites may require direct authorization from the copyright holders or their estates.

References

• Crandall, R., & Jones, A. (1991). Issues in self-actualization measurement. In A. Jones & R. Crandall (Eds.), Handbook of self-actualization (Special Issue). Journal of Social Behavior and Personality, 6(5), 339–344.
• Goldstein, K. (1939). The Organism: A Holistic Approach to Biology Derived from Pathological Data in Man. American Book Company.
• Jones, A., & Crandall, R. (1986). Validation of a short index of self-actualization. Educational and Psychological Measurement, 46(3), 631–640. https://doi.org/10.1177/0013164486463026
• Lefrançois, R., Leclerc, G., Dubé, M., Hébert, R., & Gaulin, P. (1997). The development and validation of a brief self-actualization scale with elderly populations. Social Indicators Research, 41(2), 211–229. https://doi.org/10.1023/A:1006883204751
• Maslow, A. H. (1954). Motivation and Personality. Harper & Row.
• Maslow, A. H. (1968). Toward a Psychology of Being (2nd ed.). D. Van Nostrand.
• Maslow, A. H. (1970). Religions, Values, and Peak-Experiences. Penguin Books.
• Rogers, C. R. (1961). On Becoming a Person: A Therapist’s View of Psychotherapy. Houghton Mifflin.
• Shostrom, E. L. (1964). An inventory for the measurement of self-actualization. Educational and Psychological Measurement, 24(2), 207–218. https://doi.org/10.1177/001316446402400203
• Sumerlin, J. R., & Bundrick, C. M. (1996). Brief index of self-actualization: A measure of Maslow’s model. Journal of Social Behavior and Personality, 11(2), 253–271.
• Sumerlin, J. R., & Bundrick, C. M. (1998). Revised and brief mental health index: A measure of psychological health for research with disadvantaged populations. Psychological Reports, 83(3), 839–851. https://doi.org/10.2466/pr0.1998.83.3.839
• Watson, P. J., Hood, R. W., & Morris, R. J. (1990). The Short Index of Self-Actualization: A factor analytic study of its validity and of its correlation with narcissism and irrational beliefs. Journal of Social Behavior and Personality, 5(5), 455–464.

Items of the Scale