Putting the assumptions about social influence and the macropredictions of social-influence models to the empirical test is very challenging. Here, we point to work that uses different approaches.
Laboratory experiments
Friedkin, N. E., & Johnsen, E. C. (2011). Social Influence Network Theory. New York: Cambridge University Press.
Lorenz, J., Rauhut, H., Schweitzer, F., & Helbing, D. (2011). How social influence can undermine the wisdom of crowd effect. Proceedings of the National Academy of Sciences, 108(22), 9020-9025.
Field experiments
Survey data
Brousmiche, K.-L., Kant, J.-D., Sabouret, N., & Prenot-Guinard, F. (2016). From Beliefs to Attitudes: Polias, a Model of Attitude Dynamics Based on Cognitive Modeling and Field Data. Journal of Artificial Societies and Social Simulation, 19(4).
Huet, S., Deffuant, G., Nugier, A., Streith, M., & Guimond, S. (2019). Resisting hostility generated by terror: An agent-based study. PLOS ONE, 14(1), e0209907.
SIENA Modeling
Lewis, K., Gonzaleza, M., & Kaufman, J. (2012). Social selection and peer influence in an online social network. Proceedings of the National Academy of Sciences of the United States of America, 109(1), 68–72.
Stark, T. H., & Flache, A. (2012). The double edge of common interest: Ethnic segregation as an unintended byproduct of opinion homophily. Sociology of Education, 85(2), 179–199.