The research reported in this paper tests the possibility of using differences in conceptual categories in the measurement of differences between two cultures. In the initial experiment, which contrasts French and French-Acadian linguistic habits, the authors limit themselves to conceptual categories reflected in concrete nouns representing the naming or labeling of things, groups of things, and observable actions. An overview of the contents includes: (1) delimiting the problem, (2) coding conceptual categories, (3) variations in time and space, (4) indices of diversity, (5) indices of intensity, (6) selecting conceptual fields, (7) sampling the population, (8) recording measurable responses, (9) analyzing and computing the data, and (10) appraising the results. Some 3,000 persons contributed more than four million word-token responses for analysis. Tables and graphs illustrate findings. (Author/RL)