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The phrase "as primary samples" is correct and usable in written English.
It can be used when referring to samples that are considered the main or most important examples in a study or analysis.
Example: "The researchers collected data from various sources, using the results from the initial experiments as primary samples for their analysis."
Alternatives: "as main samples" or "as key samples".
Exact(2)
Only samples of a weight within the narrow range for each species were included as primary samples (Table 1).
Toyocamycin inhibited not only ER stress-induced but also constitutive activation of XBP1 expression in MM lines as well as primary samples from patients.
Similar(58)
In the VHLSSs, communes are selected randomly as primary sampling units.
We used two-stage sampling probability proportional to size to stratify the two WRUAs as primary sampling units.
gThe initial sample of the TREE-Panel was a disproportionally stratified two-stage sample of ninth-graders, where schools and school classes served as primary sampling units (PSU's).
We consider users who tend to tweet with hashtags at a relatively high frequency as primary sampling candidates as they are more likely to tweet with hashtags during the time of interest.
To ensure a representative sample, a two-stage procedure was implemented: 84 German municipalities were used as primary sampling units, explicitly stratified according to three strata of urbanization (via the number of inhabitants; see Aßmann et al. 2015).
To analyze NAEP data, the software (Haberman 2013) computes the asymptotic variance under the assumption that the sampling procedure is two-stage sampling with schools as primary sampling units;2 variance formulas for this case can be found, for example, in (Cochran 1977, pp. 301 309).
Shiakhas and villages were defined as primary sample units.
The HBSC study uses classes as primary sampling unit.
All the analyses took into account the sampling strategy, setting classes as primary sampling units.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com