Usually in survey sampling when the sensitive questions are asked directly, the respondents do not provide true answers. The randomized response techniques have been introduced to protect the privacy responses. In this article we focus on Simons randomized response technique for qualitative variables. Using the combination of the two different Simmons’ models, a new combined randomized response technique is introduced to increase protection of privacy. Using simulation in R package, efficiency of the proposed model is compared to the Simmons’ and Alavi and Tajodini's (1394) models. Finally, the proposed model has been employed for estimating the proportion of student cheating in Shahid Chamran University.