TIE-IN By N., Pam M.S. - April 29, 2013 noun. an idea or product which is cultivated as part of or in correlation with a task or initiative. TIE-IN: "A tie-in, with regard to advertising, would be the fundamental elements in a film, such as setting, clothing, and soundtrack." Related Psychology Terms PERSONALITY CHANGE PRODUCT-MOMENT CORRELATION PHI COEFFICIENT DECEPTIVE ADVERTISING CORRELATION MATRIX FOUR-CARD SELECTION PROBLEM PRECURSOR WITHDRAWAL-DESTRUCTIVENESS BLIND TESTING PENETRANCE Cite this page: N., Pam M.S., "TIE-IN," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/tie-in/ (accessed December 12, 2019).