Perceived Source Expertise

What it measures

This scale measures how knowledgeable and expert a person appears to another person on a given topic. D'Angelo and Valsesia (2023) used it across nine studies to show that combinatory product recommendations, such as those from a chef, interior design adviser, or DJ, signal greater expertise than single-item recommendations.

Response Format

7-point scale (not at all (1) to very much (7))

Representative items

• To what extent does this person seem like a ___ expert?
• To what extent does this person seem knowledgeable about ___?

Citation

D'Angelo, Jennifer K. and Francesca Valsesia (2023), "You Should Try These Together: Combinatory Recommendations Signal Expertise and Improve Product Attitudes," Journal of Marketing Research, 60 (1), 155-169.

Keywords