drop outs

  1. Luane

    Sound propagation modeling (with lme, unequal sample size, and "drop out" problems?)

    I conducted a sound propagation experiment in which 20 different recorded roar-barks (the long distance vocalization of maned wolves) were played back at different sites(x3), hours(x6: 17h,18h,23h,05h,06h,11h), and with different speaker position (x2: straight forward and inclined upward 45o)...
  2. V

    repeated cross sectional-partially changed study population

    I have a large dataset (n=11804) that includes data from a cross sectional study conducted in 2013, 2014 and 2015 in patients in nursing homes...so its 'repeated cross sectional', right? However, some patients participated more than once, so in 2013 and 2014 or 2014 and 2015 or all 3 years...but...