Sentence examples for sampling strata from inspiring English sources

The degrees of freedom for our study sample equaled 77 and was calculated by subtracting the number of clusters in the first level of sampling (strata) from the number of clusters (PSUs, or primary sampling units) in the second level of sampling (National Center for Health Statistics 2006).

The sampling strata were defined by deployment location and apparent mental health services use, strata relevant to the parent study's primary objective.

Sampling proportions were set to recruit approximately equal numbers of subjects from both areas (sampling strata).

Three customized tiers of sampling strata were created, as discussed, to meet these goals.

The large-scale pattern of lobster distribution among sampling strata remained unchanged over the survey period.

The urban and rural areas were identified as the main sampling strata with selection done in two stages.

All of the analyses were conducted accounting for individual weights, clusters (i.e., Primary Sampling Unit), and sample strata using the survey analysis commands.

In the NIS, hospitals are nested within each sampling stratum, yet the hospital composition of each stratum may change from year to year.

Here we found large differences by sampling stratum, so we broke down the estimates accordingly.

Over 50% of the men in each sampling stratum reported at least one concurrency during the last three partnerships, and among Thai truckers the prevalence was over 70%.

We did not find large differences in lifetime partners by sampling stratum within populations, so we do not break them out here.