1. A method for preference determination, comprising: obtaining permission for social media profile access from social media users, wherein the social media users agree to participate in one or more surveys; retrieving, and storing in a non-transitory computer readable storage medium, profile data, preferences, and data from completed surveys of one or more survey participants; calculating base odds for one or more particular variables in profiles of qualified respondents and in profiles of a general population, and stipulating attributes for which to return one or more predictive targeted sets; analyzing, using a processor, the profile data, preferences, and data from completed surveys using a combined index calculation (CIC) method to reduce the profile data, preferences, and data from completed surveys to a single index value for one or more particular keywords; placing the one or more particular variables in rank order based on the single index value generated using the CIC method to determine a likelihood of a particular user to prefer a particular item; and returning a predictive targeted set for a likelihood of one or more users in a particular set of users to prefer the particular item.