পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| একক-অন্ধ পরীক্ষাগার পরীক্ষা (Single-Blind Laboratory Experiment)× | ডাবল-ব্লাইন্ড ল্যাবরেটরি এক্সপেরিমেন্ট× | |
|---|---|---|
| ক্ষেত্র | পরীক্ষামূলক নকশা | পরীক্ষামূলক নকশা |
| পরিবার | Process / pipeline | Process / pipeline |
| উদ্ভবের বছর≠ | Late 19th century; codified in 20th-century clinical and behavioral research | Mid-20th century (widespread adoption ~1950s onward) |
| প্রবর্তক≠ | Formalized in experimental psychology and pharmacology; Peirce & Jastrow (1884) early instance | Rooted in 19th-century pharmacological and psychological research traditions; systematized in clinical and experimental science through the 20th century |
| ধরন≠ | Controlled experimental design | Controlled experimental design with blinding |
| মৌলিক উৎস | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 | Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference. Houghton Mifflin. ISBN: 978-0395615560 |
| অপর নাম≠ | single-masked laboratory study, participant-blind lab experiment, single-blind controlled lab study | double-blind lab experiment, double-masked laboratory experiment, DB lab experiment, double-blind controlled lab study |
| সম্পর্কিত | 5 | 5 |
| সারসংক্ষেপ≠ | A single-blind laboratory experiment is a controlled study conducted in a laboratory setting in which participants do not know which condition (e.g., treatment or control) they have been assigned to, while the researchers administering the conditions are aware. This masking of participants reduces demand characteristics and response bias without requiring full investigator blinding, and the controlled laboratory environment allows tight manipulation of independent variables and precise measurement of outcomes. | A double-blind laboratory experiment is a controlled experimental design conducted in a laboratory setting in which neither the participants nor the researchers directly administering the treatment know which condition each participant has been assigned to. This dual blinding, combined with the high degree of environmental control characteristic of laboratory settings, minimizes both participant expectancy effects and experimenter bias, making it one of the most rigorous designs available for isolating causal relationships between independent and dependent variables. |
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