Can Empathy Be Measured? What the Jefferson Scale Actually Captures

Empathy can be measured, but only in the narrow, operational sense that any psychological quality can be measured: you define it precisely, write questions that sample the definition, and then show that the resulting scores behave the way the definition predicts. The Jefferson Scale of Empathy (JSE), the most widely used empathy instrument in medicine, does this well for one specific idea of empathy, a predominantly cognitive capacity to understand a patient's perspective and to signal that understanding. What it captures is a self-reported orientation, not observed behavior at the bedside, and that distinction sets a firm ceiling on what any single score can tell you.

What the Jefferson Scale actually asks

The JSE was built by Mohammadreza Hojat and colleagues at what is now the Sidney Kimmel Medical College at Thomas Jefferson University, and first appeared around 2001. It is a 20-item questionnaire answered on a 7-point agreement scale. In the developers' own framing, it treats empathy in patient care as a cognitive attribute: the ability to understand a patient's pain, suffering, and point of view, combined with an intention to help and the capacity to communicate that understanding. It comes in three parallel forms, one for medical students, one for practicing health professionals, and one for other health-profession students.

The important move is in that definition. The JSE deliberately separates empathy, framed as understanding, from sympathy, framed as sharing a patient's feelings. So the scale is not trying to weigh empathy in some universal sense. It is measuring a particular construct its authors chose to call empathy, and every result has to be read inside that choice.

Does it hold up as a measurement?

By the standards psychometrics uses, yes. The large nationwide study by Hojat and colleagues, which surveyed roughly 6,000 first-year osteopathic medical students across 41 campuses, reported good internal consistency (a Cronbach's alpha around 0.82) and a stable three-part structure: perspective taking, compassionate care, and a smaller factor the authors label walking in the patient's shoes. That study also produced national norm tables, and it found, as earlier work had, that women tend to score modestly higher than men.

The scale has been translated into dozens of languages and used by investigators in many countries, which is part of why it dominates the field. When researchers say the JSE is "validated," this is what they mean: it is reliable, its item structure holds up under confirmatory analysis, it separates groups in expected ways, and it correlates with related measures. As an instrument for its defined construct, it is a genuinely good one.

What the outcome evidence shows, and what it does not

The stronger claim, that measured empathy tracks how patients actually do, rests mostly on two influential studies. In the 2011 Academic Medicine report, Hojat and colleagues linked higher physician JSE scores to better control of hemoglobin A1c and LDL cholesterol among 891 diabetic patients cared for by 29 family physicians. The 2012 Del Canale study in Parma, Italy, examined more than 20,000 patients with diabetes under 242 primary care physicians and found that higher physician empathy scores were associated with fewer acute metabolic complications serious enough to require hospitalization.

Those are large, carefully done studies pointing in the same direction. They are also correlational, single-disease, and unable to establish that empathy caused the difference. And the picture is not uniform. A 2019 cross-sectional study in the Journal of General Internal Medicine attempted a similar analysis and found no association between physician JSE scores and diabetes laboratory outcomes. Researchers have noted that the samples and settings differed enough that the two lines of work are not clean replications of one another. The reasonable reading is that empathy plausibly matters for care, that the evidence is mixed rather than settled, and that a self-reported score is a weak stand-in for whatever clinical mechanism might be at work.

Self-report is the real limit

The deepest constraint is structural. The JSE asks clinicians to rate their own attitudes, so it measures disposition, not conduct. Self-report of a socially prized trait invites social-desirability bias, and people routinely overestimate their own perspective-taking. A high score is a claim about orientation, not a recording of what happened in the room.

This is why researchers often pair it with different tools that measure different things. Patient-rated instruments such as the CARE measure ask the person on the receiving end how understood they felt, and standardized-patient encounters score observable behavior. Self-rated and patient-rated empathy do not always line up. Other scales encode other definitions entirely; the widely used Interpersonal Reactivity Index, for instance, includes an affective component the JSE intentionally leaves out. "Measuring empathy" therefore always carries a hidden decision about what empathy is, and instruments that answer that question differently are not interchangeable.

How to read an empathy score

A JSE result is best understood as evidence about an attitude inside a stated framework, not a verdict on a clinician's care or a patient's experience. It is well suited to cohort-level questions, such as whether empathy scores decline across training or whether a curriculum shifts them, and it is misleading when treated as an individual report card. This is educational writing about measurement, not medical advice, and the same caution applies to any number that promises to quantify a human quality: the score is only as broad as the definition behind it. The Jefferson Scale answers its own question honestly. The work is remembering exactly which question that was.