Main Content
Sound Added to Your Favorites Soundboard

Log in or create an account to save your favorites, or they'll expire in 4 hours

Error Adding Sound
Error adding sound to your favorites.
Sound Reported
Sound reported and our moderators will review it shortly.
Error Reporting Sound
Error reporting sound. Please use the Contact page.
Home > Random Sound Effects Soundboard
99 1,666
Random Sound Effects Soundboard

Random Sound Effects Soundboard

Biostatisticians use "fixed" and "random" effects to respectively refer to the population-average and subject-specific effects. A random effects model is a special case of a mixed model, which assumes that the data being analysed are drawn from a hierarchy of different populations.
See also: Analysis of variance, Fixed effects model, Mixed model, Multilevel model, Meta-analysis, and Best linear unbiased prediction.