قارن الطرق

	أخذ العينات بالمجموعات المرتبة	العينة المزدوجة
المجال	المعاينة	المعاينة
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1952	1938
صاحب الطريقة	Glenn A. McIntyre	Jerzy Neyman
النوع	Sampling design methodology	Multi-phase sampling design
المصدر التأسيسي	McIntyre, G. A. (1952). A method for unbiased selective sampling using ranked sets. Australian Journal of Agricultural Research, 3(4), 385–390.	Neyman, J. (1938). Contribution to the theory of sampling human populations. Journal of the American Statistical Association, 33(201), 101–116.
الأسماء البديلة	RSS	Two-Phase Sampling
ذات صلة	4	4
الملخص	Ranked Set Sampling (RSS) is a data collection method introduced by G. A. McIntyre in 1952 that improves estimation efficiency when visual ranking of units is easier or cheaper than actual measurement. By deliberately selecting and measuring units that are ranked as most likely to yield desired outcomes, RSS reduces variance compared to simple random sampling while maintaining unbiasedness.	Double Sampling (also called two-phase or multistage sampling) is a survey design in which a large preliminary sample is collected using inexpensive methods or partial information, then a smaller subsample is drawn from it and measured in detail. Pioneered by Jerzy Neyman in 1938, it is particularly useful when a cheap surrogate measurement is available but true measurement is expensive.