RT - Journal Article T1 - A New Combined Randomized Response Model JF - JSS YR - 2019 JO - JSS VO - 13 IS - 1 UR - http://jss.irstat.ir/article-1-470-en.html SP - 173 EP - 184 K1 - ‎Randomized Rresponse‎ K1 - ‎Simmons’ Method‎ K1 - ‎Unrelated Questions‎ K1 - ‎Combined Randomized Response‎ K1 - ‎Proportion of Sensitive Attribute. AB - ‎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. LA eng UL http://jss.irstat.ir/article-1-470-en.html M3 10.29252/jss.13.1.173 ER -