Which term refers to the ability of stimuli to become equivalent due to learning?

Which term refers to the ability of stimuli to become equivalent due to learning?

• A. Reflexivity
• B. Symmetry
• C. Transitivity
• D. Stimulus Equivalence

Answer: (D)

Stimulus equivalence refers to when a group of stimuli becomes functionally interchangeable after learning. After specific trained relations, these stimuli begin to evoke the same responses across different forms or modalities, even for relations that weren’t directly taught. A key feature of this phenomenon is that reflexivity, symmetry, and transitivity often emerge: reflexivity means a stimulus relates to itself, symmetry means if one stimulus relates to another the reverse relation appears, and transitivity means if A relates to B and B relates to C, then A relates to C is derived. This overall sense of interchangeability—where new, untrained relations become possible because the stimuli are treated as equivalent—captures why the term is stimulus equivalence.

Stimulus equivalence refers to when a group of stimuli becomes functionally interchangeable after learning. After specific trained relations, these stimuli begin to evoke the same responses across different forms or modalities, even for relations that weren’t directly taught. A key feature of this phenomenon is that reflexivity, symmetry, and transitivity often emerge: reflexivity means a stimulus relates to itself, symmetry means if one stimulus relates to another the reverse relation appears, and transitivity means if A relates to B and B relates to C, then A relates to C is derived. This overall sense of interchangeability—where new, untrained relations become possible because the stimuli are treated as equivalent—captures why the term is stimulus equivalence.