Double blind - a test procedure in which the identity of those receiving the intervention is concealed from both the administrators and the subjects until after the test is completed; designed to reduce or eliminate bias in the results El 27 de enero de 2011 YouTube transmitió el estreno de https://jaidenptttm.blogsumer.com/35744181/el-5-segundo-truco-para-análisis-de-puesto-de-trabajo-sst