incompatible. The decision of which method to use, how, and when, is, in our opinion, part of the researcher's task. We believe there is not always one right approach or method, and the final choice depends on the particular question the researcher wants to address, the nature of the data, and the larger context in which it was collected. The choice of which method is the appropriate one under given circumstances is part of what constitutes the art of the scientific inquiry.
Aiken, L. S., West, S. G., Sechrest, L., & Reno, R. R. ( 1990). "Graduate training in statistics, methodology, and measurement in psychology". American Pscyhologist, 45, 721-734.
Keren, G. ( 1982). Statistical and methodological issues in psychology and social sciences research. Hillsdale, NJ: Lawrence Erlbaum Associates.
Wertheimer, M. ( 1959). Productive thinking. New York: Harper & Row.