পদ্ধতির তুলনা করুন

	ওয়েটেড স্ট্র্যাটিফায়েড স্যাম্পলিং	আনুপাতিক স্তরিত নমুনায়ন
ক্ষেত্র	জরিপ পদ্ধতি	জরিপ পদ্ধতি
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1953–1965	1953–1965 (formalized in survey sampling literature)
প্রবর্তক	Leslie Kish; William G. Cochran	William G. Cochran; Leslie Kish
ধরন	Probability sampling with weighting	Probability sampling design
মৌলিক উৎস	Cochran, W. G. (1977). Sampling Techniques (3rd ed.). John Wiley & Sons. ISBN: 978-0471162407	Cochran, W. G. (1977). Sampling Techniques (3rd ed.). John Wiley & Sons. ISBN: 978-0471162407
অপর নাম	stratified sampling with weights, design-weighted stratified sampling, post-stratification weighting, WSS	proportionate stratified sampling, proportional allocation stratified sampling, PSRS, proportionate stratified random sampling
সম্পর্কিত	6	6
সারসংক্ষেপ	Weighted stratified sampling divides a population into non-overlapping strata and draws a probability sample from each stratum, then attaches a design weight to every selected unit so that estimates correctly represent the full population. Weights compensate for unequal selection probabilities that arise from disproportionate stratum allocations, non-response, or frame imperfections, making the procedure the backbone of most large-scale national and international surveys.	Proportional stratified sampling divides the target population into non-overlapping strata (subgroups defined by a key characteristic such as age band, region, or gender) and then draws a simple random sample from each stratum so that each stratum's share of the total sample matches its share of the total population. Because each subgroup is represented in exact proportion to its population weight, the resulting sample mirrors the population structure closely without requiring post-hoc weighting adjustments.