International Personality Item Pool (IPIP) Single-Construct Scales
A curated set of public-domain IPIP scales each measuring one specific psychological construct — from self-esteem and locus of control to need for cognition, optimism, and sensation-seeking. Each scale produces an instant scored result. Free.
What this test is
Welcome. This collection of International Personality Item Pool scales lets you measure one specific psychological characteristic at a time, such as self-esteem, optimism or need for cognition.
How would you like to use it?
For researchers
Sign up as an Implicitify researcher to use the full suite of measures in your studies, or pay for each test you give. Research pricing is still being set, so we will confirm it with you when you get in touch.
Become a researcherFor clinicians
Open a clinician account to send this measure to your clients or patients through a secure link and review their scored results in one place.
Create a clinician accountAlready have an account? Go to your clinician dashboard.For educators
Use our measures in your courses to show students how psychological assessment works and to teach the principles of testing.
Request course accessAbout these scales
The International Personality Item Pool (IPIP) is a public-domain repository of personality items matched to a wide range of psychological constructs. In addition to the broad Five-Factor Model inventories, the IPIP includes short single-construct scales targeting specific traits that sit outside the standard Big Five framework — things like how internally vs. externally controlled a person perceives their outcomes, how much they enjoy effortful thinking, or how strongly they tend to seek out thrilling experiences.
Each scale below uses the standard 1–5 IPIP accuracy response format ("Very Inaccurate" to "Very Accurate") and produces a percent-of-maximum score. Results are informational and non-diagnostic.
Cognitive & thinking styles
Need for Cognition
10 items · Tendency to engage in and enjoy effortful thinking.
Need for Order and Cleanliness
10 items · Drive for tidiness, structure, and orderly environments.
Optimism
10 items · General expectation of positive outcomes.
Cognitive Failures
10 items · Everyday lapses in attention, memory, and action.
Motivational & temperament
Locus of Control: Internality
10 items · Belief that outcomes depend on one's own effort and ability.
Locus of Control: Powerful Others
10 items · Belief that outcomes are controlled by powerful other people.
Locus of Control: Chance
10 items · Belief that outcomes are controlled by luck or fate.
Locus of Control: Total
20 items · Combined External locus scale (Powerful Others + Chance).
Locus of Control (Rational Scale)
5 items · Short rational-scale measure of perceived personal control.
Sensation-Seeking: Dangerous Thrill-Seeking
10 items · Desire for physically dangerous, high-adrenaline experiences.
Sensation-Seeking: Impulsive Thrill-Seeking
10 items · Impulsive, unplanned thrill-seeking without concern for consequences.
Sensation-Seeking: Calculated Thrill-Seeking
10 items · Planned, controlled pursuit of exciting experiences.
Clinical
These scales measure symptom-relevant constructs and are available via clinician referral only. Clinicians can administer them through a patient link from their dashboard.
Attention and Hyperactivity
12 items · Inattention and hyperactivity-impulsivity tendencies.
Depression
22 items · Depressive symptom frequency.
Perfectionism and Intrusive Thoughts
10 items · Doubt, fear of mistakes, and unwanted intrusive thoughts.
Obsessive-Compulsive Symptoms
11 items · Repetitive checking, orderliness, and contamination concerns.
Hypomanic Traits: Exhibitionism
12 items · Assertiveness, social confidence, and need for admiration.
Hypomanic Traits: Mood Intensity / Change
12 items · Mood lability, intensity, and rapid affective shifts.
Dissociation: Full Scale
31 items · Comprehensive measure of dissociative experiences.
Dissociation: Short Version
17 items · Abbreviated dissociation screening scale.
Dissociation: Depersonalization
8 items · Feeling detached from one's body, mind, or identity.
Dissociation: Absorption
8 items · Becoming deeply absorbed in imagery, daydreams, or stories.
Dissociation: Amnesia
5 items · Unexplained lapses in memory for actions or life events.
Social & self
Self-Esteem
10 items · Global sense of self-worth and personal value.
Private Self-Consciousness
10 items · Tendency to reflect on internal thoughts and feelings.
Public Self-Consciousness
12 items · Awareness of how one appears to others.
Self-Monitoring
10 items · Tendency to adjust behavior to fit social context.
Impression-Management
20 items · Deliberate control of self-presentation to appear socially desirable.
Self-Deception
10 items · Unconscious positive bias in self-evaluation.
Social Desirability
30 items · Two facets: Impression-Management and Self-Deception.
Physical Attractiveness (Rational Scale)
9 items · Self-perceived physical attractiveness.