Validation of the Coffee Knowledge Test for Assessing Expertise in Coffee

ABSTRACT Perception and appreciation of food and beverages are shaped by an individual's knowledge and expertise. While wine expertise has been widely studied, less is known about how coffee expertise influences sensory perception. This study aimed to validate the Coffee Knowledge Test developed by Croijmans and Majid (2016) as a tool for assessing coffee expertise. We adapted the test and examined its reliability using data from 267 participants, comparing novice consumers and coffee professionals. Internal consistency was evaluated using item variability, correlation analysis, and Cronbach's α , while external validity was assessed by comparing scores between the two groups. The test showed sufficient item variability, appropriate correlations, and strong internal consistency. Importantly, coffee professionals scored significantly higher than novices. These results support the Coffee Knowledge Test as a valid and reliable instrument for measuring coffee‐related knowledge and expertise.