Figure 3.5: Nonresponse has been increasingly steadily, even in high-quality expensive surveys (National Research Council 2013; B. D. Meyer, Mok, and Sullivan 2015). Nonresponse rates are much higher for commercial telephones surveys, sometimes even as high as 90% (Kohut et al. 2012). These long-term trends in nonresponse mean that data collection is more expensive and estimates are less reliable. Adapted from B. D. Meyer, Mok, and Sullivan (2015), figure 1.
ຮູບທີ 3.5: Nonresponse ໄດ້ເພີ່ມຂຶ້ນຢ່າງຕໍ່ເນື່ອງ, ເຖິງແມ່ນວ່າໃນການສໍາຫຼວດລາຄາທີ່ມີຄຸນນະພາບສູງ (National Research Council 2013; BD Meyer, Mok, and Sullivan 2015) . ອັດຕາການຕອບສະຫນອງແມ່ນສູງກ່ວາສໍາລັບການສໍາຫຼວດໂທລະສັບມືຖື, ບາງຄັ້ງເຖິງ 90% (Kohut et al. 2012) . ແນວໂນ້ມໃນໄລຍະຍາວເຫຼົ່ານີ້ໃນການຕອບສະຫນອງບໍ່ໄດ້ຫມາຍຄວາມວ່າການເກັບກໍາຂໍ້ມູນແມ່ນລາຄາແພງກວ່າແລະການຄາດຄະເນແມ່ນມີຄວາມເຊື່ອຖືຫນ້ອຍ. ດັດແປງຈາກ BD Meyer, Mok, and Sullivan (2015) , ຮູບ 1.