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Research Instrument
Personality // IPIP-LOC Open Access

IPIP Locus of Control Scale

A public-domain 55-item IPIP measure of general and Levenson-model locus of control (Internal, Chance, Rational, External).

Estimated Time
~9 mins
Instrument Scale
Standardized Items
Administration
Self-Administered
Scoring Engine
Automated Real-Time

Scale Overview & Construct

A public-domain 55-item IPIP measure of general and Levenson-model locus of control (Internal, Chance, Rational, External).

Psychometric Instrument Likert Self-Report Dimensional Breakdown Server-Side Validated

Purpose & Measurement Objectives

This is a public-domain IPIP measure of locus of control — how much you believe your outcomes are shaped by your own effort and ability versus chance, fate, or powerful others. It combines a general Locus of Control score with Levenson's three-way breakdown: Internal (your own effort/ability), Chance (luck/fate), and External (powerful others), plus a short Rational facet. Taking it gives you a picture of where you tend to locate control over what happens in your life.

Instrument Specifications

Target Population
Adults
Administration Format
Self-Administered
Intended Domain / Purpose
Research & Empirical Study
Recommended Age Bracket
18+
Duration & Pacing
9 Minutes (Self-Paced)
Access License
Open Creative Commons

Academic Citation & Instrument Provenance

When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:

License: Public Domain (International Personality Item Pool, ipip.ori.org). Citation: Levenson, H. (1981). Differentiating among internality, powerful others, and chance. In H. M. Lefcourt (Ed.), Research with the Locus of Control Construct (Vol. 1, pp. 15-63). Academic Press. This is not a diagnostic tool. Scores reflect this test's own item pool only — they are not compared against a published clinical or population norm; no such norm has been entered for this instrument.

Governance, Boundaries & Ethical Use

Construct Boundaries & Interpretive Limitations

This is a 55-item self-report inventory: a 20-item general Locus of Control score plus four facets from Levenson's model — Internal (10 items), Chance (10 items), Rational (5 items), and External (10 items). Some items are shared in wording across facets by design (a feature of the source item pool, not a data error). Results reflect self-reported beliefs, not an objective or clinical evaluation.

License: Public Domain (International Personality Item Pool, ipip.ori.org). Citation: Levenson, H. (1981). Differentiating among internality, powerful others, and chance. In H. M. Lefcourt (Ed.), Research with the Locus of Control Construct (Vol. 1, pp. 15-63). Academic Press. This is not a diagnostic tool. Scores reflect this test's own item pool only — they are not compared against a published clinical or population norm; no such norm has been entered for this instrument.

Free
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  • Immediate server-side scoring and dimensional profile
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Identifier IPIP-LOC
Category Personality
Scale Standard Standardized
License Status CC BY 4.0 Open Scale
PsiQ Psychometric ID #257
IPIP Locus of Control Scale
Free Open Access
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