IUI requires ovulation, at least one open fallopian tube, and a semen sample with healthy sperm. Each IUI treatment is referred to as a cycle â the time from the first day of your period to ovulation and insemination and then a pregnancy test two weeks later.
Total survey error - Sources of nonsampling error. 1  The survey literature decomposes nonsampling errors into five general sources or types: specification error, frame error, nonresponse error, measurement error, and processing error. Specification error occurs when the concept implied by the survey question differs from the concept meant to be measured in the survey.
So before you put pen to paper and start writing your questions, be sure to avoid these 5 common survey mistakes: Top survey mistake #1: Questions should never be worded in a way thatâll sway the reader to one side of the argument. Usually you can tell a question is leading if it includes non-neutral wording.