পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| গুচ্ছ নমুনাচয়ন× | অনুসন্ধানী উপাদান বিশ্লেষণ (EFA)× | |
|---|---|---|
| ক্ষেত্র≠ | জরিপ পদ্ধতি | পরিসংখ্যান |
| পরিবার≠ | Process / pipeline | Latent structure |
| উদ্ভবের বছর≠ | Early-to-mid 20th century; canonical treatment 1953/1977 | — |
| প্রবর্তক≠ | Formalized by William G. Cochran; roots in early 20th-century U.S. Census Bureau survey practice | — |
| ধরন≠ | Probability sampling design | Latent variable / dimension reduction |
| মৌলিক উৎস≠ | Cochran, W. G. (1977). Sampling Techniques (3rd ed.). Wiley. ISBN: 978-0471162407 | Fabrigar, L. R., Wegener, D. T., MacCallum, R. C. & Strahan, E. J. (1999). Evaluating the use of exploratory factor analysis in psychological research. Psychological Methods, 4(3), 272–299. DOI ↗ |
| অপর নাম | cluster random sampling, area sampling, one-stage cluster sampling | common factor analysis, açımlayıcı faktör analizi, factor analysis |
| সম্পর্কিত≠ | 5 | 4 |
| সারসংক্ষেপ≠ | Cluster sampling is a probability sampling technique in which the population is divided into naturally occurring groups (clusters), a random sample of clusters is selected, and all — or a random subset of — members within each selected cluster are studied. It is especially practical when a complete population list is unavailable or when units are geographically dispersed, making individual random selection prohibitively expensive. One-stage cluster sampling surveys every member of selected clusters; two-stage designs add a second random draw within clusters. | Exploratory factor analysis reduces a large set of observed variables into a smaller number of latent common factors. It is widely used in scale development and psychometrics to uncover the dimensional structure that underlies a set of correlated items, without specifying that structure in advance. |
| ScholarGateডেটাসেট ↗ |
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