A simple method of constructing a confidence interval for the mean probability of detection in collaborative studies of binary measurement methods

作者：Schneeweiss Hans; Wilrich Peter Th^*

来源：Accreditation and Quality Assurance, 2014, 19(3): 221-223.

DOI：10.1007/s00769-014-1050-y

• Probability of detection
• POD
• Interlaboratory experiments
• Collaborative studies
• Confidence interval
• Qualitative measurements
• Binary measurements
• Coverage

We deal with collaborative studies where each of k laboratories performs n repeated binary measurements (measurement result x = 0: %26quot;not detected%26quot;; measurement result x = 1: %26quot;detected%26quot;), and present a simple method of constructing a confidence interval for the mean probability of detection of the laboratories. This method is based on an approximation of the distribution of the number y of detections among n independent measurements of a randomly chosen laboratory by a binomial distribution. The confidence interval is not only much easier to calculate but also more accurate than the profile likelihood interval presented by Uhlig et al.

• 出版日期2014-6