.- help for ^iccconf^ .- Confidence Interval for A Single Intraclass Correlation (ICC) ------------------------------------------------------------- .^iccconf , level(#)^ ^Description^ ^-----------^ ^iccconf^ is an immediate command that computes a confidence interval for a single intraclass correlation (ICC). The procedure is based on Rosner's approach using the F-test. Three inputs are required: ^icc^ is the intraclass correlation. The input must be a value between 0 and 1 ^k^ is the number of subjects ^reps^ is the number of repeated assessments or "within" pair measurements. ^Option^ ^------^ level(#) The level option allows the user to modify the confidence limit. Use values between 0 and 1. The default is .95. Example -------- To find a 95% confidence interval for an ICC of .914, based on 5 observations with 2 replcations each: ^.iccconf .914 5 2^ For a 90% confidence interval for the above example, type: ^.iccconf .914 5 2, level(.9)^ References ---------- Rosner, B. "Fundamentals of Biostatistics, 6th ed" Duxbury, Press (The Thompson Company): Belmont, CA, 2006, pgs 615-616. Author ------ Paul F. Visintainer, PhD Springfield, MA 01089 visint46@gmail.com Also see -------- Manual or on-line help for: @loneway@, @xtreg@, or ^bootcor^, ^xtrho^ if installed