This article presents the main results of a methodological study on social forecasting. The purpose of the study was to investigate the possibility of a systematic process of making social predictions. The outcome of this research was positive insofar as a “model” procedure was constructed to assess the validity and verify the credibility of tentative forecasts. The article elucidates, in general terms, the principal elements and structural characteristics of the model in a two-dimensional framework (a predictability continuum and a validation sequence) that forms the conceptual matrix of the study. On the basis of this, the operational procedure of the model is given in the three phases (probabilism, voluntarism, possibilism) through which any forecast can be tested. The process is illustrated in a flowchart and summarized in a table.