what is the sample size variable for psu in cluster samples what is the psu variable for cluster sampling when defining the PSU variable is the sampled with replacement __________. when defining the pseudo variable is the sample size sample with replacement? how to find sample size psu variable cluster sampling vs cluster sampling how to specify psu variable in cluster survey what is defining a psu variable what is psu in sampling what is the psu in cluster sampling what is the psu variable what is sampling used for? what is the primary sampling unit for cluster when defining a PSU what is the sampling unit psu when defining a PSU variable should the unique districts within the sample be used what is the sampling unit variable for cluster sampling? when is primary sampling used when defining PSU, which primary sampling units (districts) should be used? define psu