Empathy – Interpersonal Reactivity Index (IRI)

Abstract

The Interpersonal Reactivity Index (IRI), developed by M. H. Davis, is a highly influential self-report measure designed to assess individual differences in dispositional empathy. Conceptualized as a multidimensional construct, the IRI distinguishes between cognitive and affective components of empathy, providing a more nuanced understanding of how individuals react to and perceive the experiences of others. The scale consists of 28 items distributed across four distinct subscales: Perspective-Taking, Fantasy, Empathic Concern, and Personal Distress. Since its introduction, the IRI has become a standard instrument in social and personality psychology research due to its robust factor structure and comprehensive coverage of the empathy domain.

Keywords

Empathy, Interpersonal Reactivity Index (IRI), Perspective-Taking, Fantasy Scale, Empathic Concern, Personal Distress, Social Psychology, Multidimensional Assessment, Affective Empathy, Cognitive Empathy

Authors

Davis, M. H.

Purpose

The primary purpose of the IRI is to provide a comprehensive assessment of the core dimensions of human empathy. Unlike earlier measures that treated empathy as a unitary trait, the IRI aims to capture the diverse ways individuals respond to others, encompassing both the capacity to understand another person’s viewpoint (cognitive empathy) and the emotional responses generated by witnessing another person’s feelings (affective empathy).

Specifically, the scale seeks to differentiate between prosocial emotional responses (like sympathy or compassion, measured by Empathic Concern) and self-oriented, negative emotional responses (like anxiety or discomfort, measured by Personal Distress), which are crucial for predicting social behavior and psychological adjustment.

Construct

The IRI operationalizes empathy as a four-factor structure, reflecting Davis’s belief that empathy is a multi-component trait. These four components are grouped into two primary domains:

• Cognitive Empathy (or Perspective-Taking): The ability to spontaneously adopt the psychological perspective of others. This is measured by the Perspective-Taking (PT) scale, focusing on intellectual understanding.
• Affective Empathy (Emotional Reactivity): This domain is further split into three components:
  • Fantasy (FS): The tendency to imaginatively transpose oneself into the feelings and actions of fictional characters in books, movies, or plays.
  • Empathic Concern (EC): Feelings of warmth, compassion, and concern for others, often leading to prosocial behavior. This reflects other-oriented emotional responding.
  • Personal Distress (PD): Feelings of anxiety, discomfort, and unease in response to observing others’ negative experiences. This reflects self-oriented emotional responding, which is often inversely related to helping behavior.

Validity

Extensive research supports the strong construct validity of the IRI. Initial studies by Davis demonstrated that the four subscales exhibited differential patterns of correlation with established measures of personality, social competence, and emotionality, confirming that they measure distinct, yet related, facets of the empathy construct.

Convergent validity is high, particularly for the Empathic Concern scale, which strongly correlates with measures of altruism and prosocial motivation. Discriminant validity is supported by the finding that Personal Distress often correlates positively with measures of neuroticism and anxiety, and negatively with measures of social competence, reinforcing its interpretation as a measure of self-focused emotional discomfort rather than true other-oriented concern.

Reliability

The IRI generally demonstrates acceptable to good internal consistency (reliability) across its subscales, although this can vary depending on the sample population studied. The Empathic Concern (EC) and Perspective-Taking (PT) scales typically show the highest internal consistency (Cronbach’s alpha usually ranging from .70 to .78).

The Fantasy (FS) and Personal Distress (PD) subscales sometimes exhibit slightly lower, though generally acceptable, reliability scores. Test-retest reliability across short and moderate intervals has been demonstrated to be stable, indicating that the IRI measures a relatively enduring dispositional trait.

Factor Analysis

The scale was originally developed using exploratory factor analysis (EFA), which revealed the robust four-factor structure. Subsequent confirmatory factor analysis (CFA) across diverse samples and cultures has largely supported this four-dimensional model, providing strong evidence for the structural integrity of the IRI.

The clear separation of the four factors—particularly the distinction between Empathic Concern (prosocial affect) and Personal Distress (aversive affect)—is the scale’s fundamental psychometric strength, validating Davis’s multidimensional approach to measuring dispositional empathy.

Instrument

Test Type: Self-report questionnaire

Format: 28 items, scored on a 5-point Likert scale (1 = does not describe me well to 5 = describes me very well).

Language Available: English (original) and numerous translations (e.g., Spanish, German, Japanese, Chinese) have been validated globally.

Population Group: General population; extensively used with university students and adults.

Age Group: Typically utilized with adolescents (16+) and adults.

Population Details: Appropriate for use in clinical, social, and personality psychology research settings.

Test Methodology: Respondents indicate the degree to which each statement describes them. Items marked with (-) are reverse-scored to control for response bias.

Keywords

Psychological Assessment, Dispositional Empathy, Social Cognition, Affective Measures, Self-Report, Psychological Scale, Davis, 1980

Authors

Author ORCID Identifier: Not publicly available or standardized at the time of publication.

Affiliation Email addresses: Not available.

Correspondence Address: Not available.

Permissions & Fee and Test Year

The Interpersonal Reactivity Index (IRI) is an academic instrument designed by Mark H. Davis, first published in 1980 and expanded upon in 1983. It is non-proprietary and is generally available for use without fee for non-commercial research and educational purposes, provided proper citation is given to the original works by Davis.

Test Year: 1980 (Initial publication of the multidimensional approach) and 1983 (Publication of the 28-item scale).

Reference’s

The full instrument and related documentation can be found via the following links (Note: These links lead to PDF documents):

• The original PDF can be downloaded here: http://fetzer.org/sites/default/files/images/stories/pdf/selfmeasures/EMPATHY-InterpersonalReactivityIndex.pdf
• An additional PDF reference is available here: http://www.nips.ac.jp/fmritms/conference/references/Mano/Davis1983.pdf

Citations for the scale development:

• Davis, M. H. (1980). A multidimensional approach to individual differences in empathy. JSAS Catalog of selected Documents in Psychology, 10, 85.
• Davis, M. H. (1983). Measuring individual differences in empathy: Evidence for a multidimensional approach. Journal of Personality and Social Psychology, 44, 113–126.
• Davis, M. H. (1983). The effects of dispositional empathy on emotional reactions and helping: A multidimensional approach. Journal of Personality, 51(2), 167–184.

Items of the EMPATHY-Interpersonal Reactivity Index (IRI)

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

Response Scale: 1 = does not describe me well and 5 = describes me very well. NOTE: (-) denotes item to be scored in reverse fashion.

• 1. I daydream and fantasize‚ with some regularity‚ about things that might happen to me. (FS)
• 2. I often have tender‚ concerned feelings for people less fortunate than me. (EC)
• 3. I sometimes find it difficult to see things from the “other guy’s” point of view. (PT) (-)
• 4. Sometimes I don’t feel very sorry for other people when they are ha‎ving problems. (EC) (-)
• 5. I really get involved with the feelings of the ch‎aracters in a novel. (FS)
• 6. In emergency situations‚ I feel apprehensive and ill-at-ease. (PD)
• 7. I am usually objective when I watch a movie or play‚ and I don’t often get completely caught up in it. (FS) (-)
• 8. I try to look at everybody’s side of a disagreement before I make a decision. (PT)
• 9. When I see someone being taken advantage of‚ I feel kind of protective towards them. (EC)
• 10. I sometimes feel helpless when I am in the middle of a very emotional situation. (PD)
• 11. I sometimes try to understand my friends better by imagining how things look from their perspective. (PT)
• 12. Becoming extremely involved in a good book or movie is somewhat rare for me. (FS) (-)
• 13. When I see someone get hurt‚ I tend to remain calm. (PD) (-)
• 14. Other people’s misfortunes do not usually disturb me a great deal. (EC) (-)
• 15. If I’m sure I’m right about something‚ I don’t waste much time listening to other people’s arguments. (PT) (-)
• 16. After seeing a play or movie‚ I have felt as though I were one of the ch‎aracters. (FS)
• 17. Being in a tense emotional situation scares me. (PD)
• 18. When I see someone being treated unfairly‚ I sometimes don’t feel very much pity for them. (EC) (-)
• 19. I am usually pretty effective in dealing with emergencies. (PD) (-)
• 20. I am often quite touched by things that I see happen. (EC)
• 21. I believe that there are two sides to every question and try to look at them both. (PT)
• 22. I would describe myself as a pretty soft-hearted person. (EC)
• 23. When I watch a good movie‚ I can very easily put myself in the place of a leading ch‎aracter. (FS)
• 24. I tend to lose control during emergencies. (PD)
• 25. When I’m upset at someone‚ I usually try to “put myself in his shoes” for a while. (PT)
• 26. When I am reading an interesting story or novel‚ I imagine how I would feel if the events in the story were happening to me. (FS)
• 27. When I see someone who badly needs help in an emergency‚ I go to pieces. (PD)
• 28. Before criticizing somebody‚ I try to imagine how I would feel if I were in their place. (PT)

Subscale Key:

• PT = Perspective-Taking Scale
• FS = Fantasy Scale
• EC = Empathic Concern Scale
• PD = Personal Distress Scale