Why empathy splits into cognitive and emotional halves
Psychologist Mark Davis developed the Interpersonal Reactivity Index (IRI) in the 1980s to capture that empathy is not a single trait but a multidimensional one. Perspective taking and fantasy fall under cognitive empathy -- understanding or imagining another's mental state -- while empathic concern and personal distress fall under emotional empathy -- actually feeling something in response to another's state. A person can score high on one dimension and low on another, which is part of why "how empathetic someone is" resists being reduced to a single number.
Personal distress is not the same thing as compassion
It is worth noting that personal distress, one of the four dimensions, is not necessarily a positive trait in the way empathic concern is. Someone who scores high on personal distress may feel overwhelmed rather than helpful in an emergency, freezing up instead of responding calmly, because the situation triggers their own anxiety rather than concern for the person suffering. Recognizing this distinction matters for understanding why some highly sensitive people struggle to act helpfully under pressure.
Frequently Asked Questions
Is scoring high on every dimension the ideal?
Not necessarily. High personal distress in particular can make it harder to respond calmly and helpfully in a crisis, so a well-rounded balance across the dimensions -- rather than maximizing every score -- is generally seen as healthier than being high on all four.
Can empathy be developed through practice?
Cognitive empathy in particular, like perspective taking, is generally considered something that can improve with conscious practice, such as deliberately considering other viewpoints in conversations or media. Emotional responses are less directly trainable, but greater self-awareness of your own patterns can still help you manage situations that trigger personal distress.