Abstract
This paper reports on the decision‐making process leading to the choice of a particular contraceptive method. Specifically, a model was developed and tested which determines the choice between the IUD and the pill using data obtained from the 1969 Profamilia family planning program adopter's questionnaires in Bogotá, Colombia. A linear probability model was employed to estimate the effects of the independent variables on the probability of adopting the IUD over the pill. Briefly, income, education, parity level, and age were found to be significant while a spacing/limiting variable was not significant.